{"case_id":"ltx_only/instruments/instruments_1/00000016","text_prompt":"The scene opens in the genre of an intimate musical performance, captured on a medium-close, fixed lens under warm, even indoor lighting. The palette is defined by the rich blacks of the piano accordion against a softly blurred background of wooden furniture and domestic decor. A performer sits upright, shoulders relaxed, with the camera holding tightly on the instrument and hands while the head remains mostly out of frame. The left hand immediately engages the bass buttons, laying down a steady, rhythmic ostinato that alternates between root-position chords and bass-note inversions. Simultaneously, the right hand begins a bright, flowing melody across the white keys, each press triggering a clear, reedy tone with a slightly metallic resonance. The bellows expand and contract smoothly beneath the instrument, driving the airflow that powers both the harmonic pulse and the melodic line.\n\nThe melody rises through a sequence of rapid ascending notes before dipping into a descending run, the right-hand fingers moving with precise, even articulation that matches the density of the phrase. As the musical line builds, the performer pushes the bellows further outward, creating a subtle dynamic swell that intensifies the sound. A short flourish of scalar notes peaks in pitch before cascading downward, accompanied by a shift to richer chord voicings in the left hand. The articulation briefly turns staccato at the peak, then relaxes back into legato as the phrase tapers. Close-miked audio captures every detail: the bright attack of the reeds, the soft rustle of clothing near the microphone, and the crisp mechanical clicks of the key action during fast passages. The performance maintains a steady moderate tempo throughout, blending folk-dance energy with classical phrasing sensibilities, with expressive variation shaped entirely by bellows dynamics and rhythmic emphasis rather than manual vibrato.\n\nThe phrase approaches its final cadence as the right hand descends toward the tonic, the fingers gliding smoothly across the keys. Both hands settle into a sustained position, the left hand holding a low bass note while the right hand locks onto a resolved tonic chord. The bellows close gently, reducing air pressure and allowing the sound to decay naturally into the quiet room. A faint mechanical click from the final key release rings out just as the audio fades. The performer’s posture remains relaxed and focused until the very last instant, the camera holding its fixed, intimate frame as the music dissolves into stillness.","video_1_relative_path":"videos/1b741265d310840a.mp4","video_2_relative_path":"videos/3b9bf161f8d4c016.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/instruments/instruments_1/00000101","text_prompt":"A static, eye-level medium shot frames a high-energy drum performance inside a tightly controlled recording studio, bathed in even, soft illumination that minimizes shadows and highlights the blue walls lined with white horizontal acoustic panels and black foam wedges. A bearded man in a dark long-sleeved sweater sits poised behind a black drum kit, surrounded by an array of close-microphones. Without hesitation, he launches into a driving rock groove at a steady one hundred and forty beats per minute. His right hand circles the ride cymbal in a relentless eighth-note pattern, producing a bright, cutting metallic ping, while his left hand alternates between a tight, woody snare backbeat and crisp hi-hat chokes. The audio is dry and intimately close-mic’d, capturing every stick impact with virtually no room reverb, and the rapid blur of his sticks traces sharp, percussive arcs as his shoulders tense slightly under the unwavering tempo.\n\nMaintaining the pulse, the drummer shifts into a syncopated fill, lifting his right hand to strike a deep, resonant tom while his left hand executes a rapid double-stroke roll on the snare. The dynamic level swells as his torso leans forward and his wrists flex sharply on every accent, the rolling staccato hits contrasting with the earlier steady wash. He seamlessly returns to the primary pattern, interlocking ride accents with hi-hat pulses to recreate that classic chick-thud feel, before layering in a subtle crescendo of ghost notes beneath the main beats. His head bobs in time, eyes locked downward, as motion blur intensifies and the overall volume rises slightly. The phrase culminates in a final, emphatic crash on the ride cymbal, both hands converging as his body leans forward one last time. The long metallic decay rings out for a moment, fading naturally into silence as he lowers his sticks and his shoulders finally relax, leaving only the clean, dry atmosphere of the studio.","video_1_relative_path":"videos/447cee51793d7fd4.mp4","video_2_relative_path":"videos/0cdec3cbdb1dd641.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/instruments/instruments_2/00000006","text_prompt":"Cinematic close-up, static camera, neutral studio lighting, and a tight high-angle composition focusing on the upper register of a chromatic marimba. The frame holds the scene as two hands enter from opposite edges, each gripping a wooden mallet—one with a white head, the other yellow-black. The performer begins with a deliberate, isolated strike on the leftmost key, producing a bright, resonant tone that blooms and fades before the right hand answers with a clean strike on the adjacent bar. The tempo settles into a steady, moderate pulse around ninety-five beats per minute, with every percussive attack and shimmering decay fully exposed in the dry, close-mic’d acoustic space.\n\nThe rhythmic density quickly builds as the mallets blur into a rapid ascending run, alternating cleanly between hands to climb stepwise toward the instrument’s higher register. Each strike lands with crisp staccato articulation, yielding bell-like pitches that rise in a smooth, diatonic contour. The motion seamlessly mirrors the sound, with the performer’s wrists staying relaxed and flexible to allow effortless crossovers and precise lateral placement. A brief descending figure follows, mirroring the ascent in reverse with slightly sharper attacks, before the phrase resolves into a final cadential pair: a deeper low note struck by the left hand, immediately answered by a brighter high note from the right. The overtones linger for just under a second, fading naturally as the hands settle outward, leaving only the faint, subtle friction of mallet shafts brushing against skin in the quiet aftermath.","video_1_relative_path":"videos/b0606e09cfa12c89.mp4","video_2_relative_path":"videos/764c8f235ec1d341.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/instruments/instruments_2/00000026","text_prompt":"A traditional bluegrass-style banjo solo unfolds in a static medium shot, framing a performer seated upright on a weathered wooden bench from the waist up, bathed in soft, overcast daylight. The camera holds completely still, allowing a blurred backdrop of grass, distant trees, and a brick structure to recede into gentle bokeh while keeping the focus on the musician’s precise technique. The scene opens with the immediate, bright twang of a five-string banjo, driven by a brisk, dance-like roll pattern at roughly one hundred and fifty beats per minute. The performer’s right hand executes a continuous stream of sixteenth notes, thumb striking down followed by alternating fingers flicking upward across the strings, while the left hand moves with fluid efficiency along the fretboard. Fingers press and release in rapid succession, forming chord shapes and melodic fragments that trace a pentatonic G-major contour. As the solo progresses, the melody briefly ascends into the upper register before stepping back down, repeating its opening motif with subtle pitch bends and light hammer-ons. The right hand occasionally accents certain beats with a firmer thumb strike, adding dynamic emphasis, while the left hand momentarily presses two strings together for a rich double-stop before returning to single-note picking. Close-mic’d and dry, the audio captures every percussive transient and faint string squeak without room reverb, mirroring the visual precision of the performance. The piece builds through a variation of syncopated accents and smooth left-hand transitions, culminating in a quick descending run that resolves cleanly on the low G string. The player’s fingers settle, the final note rings out, and the motion stops abruptly, leaving only the resonant twang of the instrument hanging in the clean, quiet air.","video_1_relative_path":"videos/04adb5d08ef8ebf8.mp4","video_2_relative_path":"videos/52494101b30cc3f4.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/instruments/instruments_2/00000060","text_prompt":"Cinematic medium shot, fixed eye-level camera, and soft domestic lighting frame a quiet living room scene. A young boy stands centered, wearing a turquoise zip-up hoodie over a yellow T-shirt and light grey trousers, holding a large brass trombone with a polished silver slide. His left hand grips the slide’s ring while his right steadies the bell, his posture upright and shoulders squared against a backdrop of dark wood furniture, a tiled floor, sheer curtains, and a pink plush toy resting on a wooden bench. The camera remains completely still, capturing the intimate, dry acoustics of a close-mic’d recording environment with virtually no ambient noise. As the scene begins, the boy engages his embouchure and draws a steady breath, pushing the slide outward to produce a single, warm low note that blooms with rich brass resonance. The slide glides smoothly to full extension, perfectly synchronized with the rising pitch, establishing a slow, contemplative tempo.\n\nFollowing the initial sustain, the boy articulates a clean descending two-note figure, his left thumb shifting deliberately along the slide to adjust the tubing length while his head tilts slightly forward. The notes separate with a gentle staccato touch before fading into a brief silence that highlights the natural decay of the tone and the stillness of his hands. Without breaking his focused gaze, he resumes playing, lifting the slide in incremental steps to trace an ascending three-note motif. The motion accelerates slightly through the climb, brightening the timbre as the air column lengthens, culminating in a higher, fuller tone that sustains steadily. A subtle vibrato emerges in the final note as his right hand supports the bell and his left stabilizes the slide at its peak, the faint metallic friction of the mechanism blending seamlessly with the clean, unembellished brass line. The scene holds on this resonant closure, emphasizing the precise mechanics of slide technique and the quiet mastery of a young musician in a tranquil home setting.","video_1_relative_path":"videos/1b98ea9922cabe24.mp4","video_2_relative_path":"videos/c7482538f9cca251.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/instruments/instruments_3/00000048","text_prompt":"Cinematic close-up, locked-off camera, shallow depth of field, warm low-key lighting, and a muted earth-tone palette open on a static view of a violin’s lower bout and f-hole area resting atop an aged sheet-music page. The polished wood catches subtle highlights while the background dissolves into a soft blur. A solo cello enters immediately with a slow, legato melodic phrase that rises gently from a soft dynamic. The performer draws the bow in one continuous downward stroke; the sound is warm, resonant, and richly bowed, without any audible fingerboard noise or pizzicato. The camera never moves, and no hands are visible, establishing a minimalist, contemplative mood.\n\nThe melody unfolds in a single, lyrical line spanning roughly an octave, beginning with a soft, sustained ascending arpeggiated motif. As the phrase resolves, the cello transitions seamlessly into a slightly higher-pitched contour that descends in a measured, unhurried flow, maintaining consistent volume and articulation without vibrato or syncopation. The implied minor-mode tonality and stepwise descent create a harmonious, grounded atmosphere, while the steady bow speed and moderate pressure ensure an even, contemplative progression. The visual composition remains completely unchanged throughout, allowing the focused texture of wood and paper to anchor the auditory experience.\n\nA final, brief descending figure brings the passage to a quiet close, with the bow pressure easing into a gentle decrescendo that tapers cleanly into silence. The performance concludes without any abrupt shifts or additional elements, leaving only the quiet ambience of the controlled indoor space. The result is a cohesive, immersive audio-visual moment that pairs solitary string resonance with a static, aesthetically refined image, inviting calm reflection rather than virtuosic display.","video_1_relative_path":"videos/4db90f2741e48f03.mp4","video_2_relative_path":"videos/6f9efbb5f577263f.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/instruments/instruments_3/00000104","text_prompt":"A cinematic performance showcase captured with a clean, studio-grade lens and even, shadowless lighting against a seamless white cyclorama. The scene opens on a medium, front-facing shot of a male percussionist seated behind a full timbale setup, dressed in a dark gray short-sleeved shirt beneath a black vest. Two overhead microphones frame the bronze drums and a gleaming cymbal to the left. He launches into a fast, mid-to-high tempo Latin groove, his drumsticks blurring with rapid, syncopated strikes. Each downward hit lands precisely on the cowbell rims, producing bright, metallic pings that cut through the clean, close-mic’d mix, while his left hand executes dry, crisp alternating taps on the smaller snare surface, adding a rattling texture. The camera holds steady as his rhythm builds, accented off-beats driving a danceable momentum. Without pause, he accelerates into a rolling pattern across successive cowbells, generating a continuous stream of high-pitched tones, while his left hand shifts to forceful, sharper bursts on the snare. The camera smoothly pushes in to a closer angle, emphasizing the metallic sheen of the instruments and the intense, fluid wrist rotations that keep the dense note clusters alive.\n\nThe framing tightens further to a close-up of the drum heads and cowbells as the performance reaches its peak. The percussionist now drives a single stick in rapid, repetitive rimshots across the larger drum, while his free hand flicks a small red plastic accessory mounted nearby, injecting sporadic low-mid clacks that thicken the percussive tapestry. His forearms tense visibly, yet his wrists maintain a fluid, controlled articulation, balancing sustained ringing cowbells with staccato snare hits and sharp stick clicks. The rhythm gradually spaces out as he prepares to conclude, culminating in a final, emphatic strike on the cowbell that rings out with a strong attack and natural decay. He lowers his sticks, his shoulders relaxing as the last resonance fades into silence. A gentle circular wipe transition dissolves the live performance, leaving the screen dark and quiet as the moment settles.","video_1_relative_path":"videos/a891b51e7f5a2862.mp4","video_2_relative_path":"videos/870e5d8138f96d90.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/instruments/instruments_4/00000029","text_prompt":"A crisp, studio-grade cinematic vignette in the style of a modern folk musical portrait, captured on a fixed medium lens with even natural lighting and a warm autumnal palette. The camera holds steady on a solitary musician standing on a grassy hillside, framing his upper body and arms against a backdrop of golden foliage, rolling hills, and a distant waterfall, while two other figures stand quietly nearby. He stands upright with relaxed shoulders, playing a mandolin-style stringed instrument with precise, alternating-thumb fingerpicking. The audio opens immediately with a bright, bell-like synthesized timbre blending keyboard warmth and acoustic string clarity, laying down a steady bass pulse in the left register while the right hand launches into a rapid, ascending arpeggio motif at a steady one hundred fifteen beats per minute. As the phrase repeats, subtle grace-note flicks and brief pauses introduce delicate ornamentation, while the performer’s right-hand strikes grow slightly more forceful, visually blurring his fingertips and naturally swelling the volume. The melody then begins a gentle descent, the left hand gliding smoothly down the fretboard as the right hand shifts between single-note runs and soft chordal accents. The texture thins gracefully into a decrescendo, emphasizing clarity over density, with only a faint, natural string buzz breaking the pristine close-mic silence. The final note rings out briefly before fading into quiet decay, and the musician’s hands settle naturally at his sides, concluding the self-contained passage without a cut or camera movement.","video_1_relative_path":"videos/881593a0280683ab.mp4","video_2_relative_path":"videos/1a7259a240c1a48a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/instruments/instruments_4/00000066","text_prompt":"Cinematic medium close-up, soft frontal lighting, and a clean, neutral palette establish an intimate instructional scene as a static camera frames a young adult man seated on a black leather couch in a plainly lit indoor room, his back resting against white walls lined with dark brown acoustic foam panels. Bathed in even illumination that casts minimal shadows, he wears a light grey short-sleeved Henley shirt, his short light-brown hair catching the light. Small hoop earrings glint in both ears, and a plain silver ring sits on his left ring finger, where a natural-finish electric guitar with a maple fretboard and black pickguard rests across his lap. Looking directly into the lens, a calm, conversational British male voice begins, stating, “Guitar players play, they're not just playing like, you know, the chord might just be C, but the guy goes, you know, adds a little color, bends into it, or slides up the neck.” His right hand lightly touches the strings near the bridge while his left hand hovers above the fretboard, fingers poised to form a shape, as a faint electronic hum from the recording setup lingers in the quiet room.\n\nWithout cutting or shifting the camera, the guitarist’s focus drops to the instrument. He begins to strum rhythmically with his right hand, producing bright, clean chords that resonate through the space with a mild, natural reverberation. His left hand moves fluidly along the fretboard, forming and releasing chord shapes in perfect time with each downstroke, the audio foreground now dominated by the guitar’s crisp mid-range timbre and the soft, percussive click of fingers against steel strings. Each chord attack is followed by a gentle decay, the dynamics remaining steady and unadorned. As the final chord rings out, he lifts his gaze back to the lens, his expression settling into a neutral, attentive stillness with his mouth slightly parted, as the fading resonance gradually blends into the low-level room tone until the scene holds its quiet, educational mood.","video_1_relative_path":"videos/1ff47e77533b6b36.mp4","video_2_relative_path":"videos/9c10b6bf0d350fcd.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/movie/movie_1/00000020","text_prompt":"A wide, high-angle cinematic shot opens on a surreal alien frontier, rendered in a desaturated palette of mossy greens, slate grays, and misty whites. Dim, atmospheric lighting is pierced by shafts of pale sunlight breaking through low clouds, carving dramatic contrasts across the terrain and illuminating massive arched stone formations draped in heavy vegetation. A futuristic black-and-gray transport helicopter enters from the left, its rotors churning steadily as it carries a large white cargo container marked with bold blue horizontal stripes, suspended rigidly beneath by thick cables. The camera initiates a slow, smooth pan to the right, tracking the aircraft in a medium-wide perspective that preserves both the machine and the monumental scale of the landscape. As the helicopter glides behind one of the towering stone arches, it vanishes momentarily into the shadowed recess before re-emerging on the far side, continuing its relentless rightward trajectory.\n\nIn the lower-right quadrant, two small white avian creatures with elongated wings drift silently through the mist, their graceful flight adding a quiet pulse of life to the otherwise desolate expanse. The audio landscape is stripped bare of wind, wildlife, or ambient resonance, leaving only a dry, centered, and relentless percussive thump—the mechanical heartbeat of the helicopter’s rotors cutting through the thin atmosphere. The sound remains steady and unfluctuating, mirroring the aircraft’s unwavering course, before gradually receding as the cargo pod crosses the right edge of the frame. The camera holds briefly on the empty, fog-draped terrain, emphasizing the profound isolation and industrial purpose of the mission against the organic stillness of an uncharted world.","video_1_relative_path":"videos/692d03571f7082f7.mp4","video_2_relative_path":"videos/cef21705ee2116b7.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_2/00000026","text_prompt":"A cinematic static wide-angle shot captures a long, straight stretch of asphalt cutting through an arid, open landscape under a pale, overcast sky. The terrain is a mix of dry, brownish-yellow grass and sparse scrubland flanking the road, with low rolling hills forming a faint horizon line. Diffuse, flat lighting casts no strong shadows, suggesting heavy cloud cover in the early morning or late afternoon. In the immediate foreground, large dark tire skid marks lie on the asphalt—two distinct circular screeches facing each other and connected by a straight line, resembling a stylized skull or target pattern. The scene is entirely still and devoid of life, amplifying a profound sense of isolation. The audio environment is dry and close-miked with minimal reverb, dominated by the deep, rhythmic chugging of a large-displacement V-twin motorcycle engine idling nearby. The note is low-pitched and slightly uneven, filling the acoustically sterile space with a steady, loping cadence that builds quiet anticipation.\n\nAs the stillness holds, the black spoked front wheel of a dual-sport motorcycle slowly rolls into view from the left edge, its knobby tread and partial fender breaking the empty composition. The camera remains completely fixed, keeping the skid marks, barren fields, and distant hills in sharp focus while the bike’s presence introduces subtle motion. Simultaneously, the engine’s idle shifts, the pitch and intensity rising slightly as the rider applies throttle. The mechanical rhythm quickens just enough to signal impending action, yet it retains its characteristic cruiser-style growl. No wind, wildlife, or ambient noise intrudes; the soundscape remains tightly focused on the machine, leaving the viewer suspended in the quiet tension before movement begins.","video_1_relative_path":"videos/49b769a42f6548f9.mp4","video_2_relative_path":"videos/c74e2a457c2c567d.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/movie/movie_2/00000056","text_prompt":"Cinematic wide shot, static low-angle framing, captured on a 35mm lens, bathed in diffuse overcast light and a muted palette of grayish-blue skies and soft tan dunes. The scene opens on a vast desert landscape where undulating sand dunes dominate the foreground, their fine grain textures catching the shadowless illumination. Center-right, a lone figure lies partially buried in the sand, face down, with only the upper torso, head, and right arm visible above the surface. Dressed in loose, cream-colored garments that blend seamlessly with the earth, the figure’s right arm stretches outward across the slope while the left side sinks into the dune. A single stalk of dry vegetation rests near the shoulder. The camera remains completely motionless, holding the frame in absolute stillness as the soft, overcast light casts only the faintest contours across the terrain.\n\nThe soundscape mirrors the visual stasis, built around a continuous, low-frequency rumble that echoes like distant thunder or far-off machinery, maintaining a steady, ominous hum. Intermittently, faint high-pitched insect chirps pierce the silence, sporadic and unpatterned, adding a fragile layer of natural ambience to the desolation. No wind, footsteps, or human breath disturbs the quiet. The combination of unbroken visual stillness and sparse, atmospheric audio cultivates a mood of profound isolation and quiet tension, leaving the viewer suspended in a haunting, minimalist tableau of solitude and unresolved mystery.","video_1_relative_path":"videos/716af71857a7a721.mp4","video_2_relative_path":"videos/a59d74acc5de91e6.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_2/00000079","text_prompt":"A single, uninterrupted cinematic shot establishes an abstract, deep-sea atmosphere rendered in a dark teal and navy blue gradient palette. The frame holds a smooth, liquid texture that evokes the crushing darkness of the ocean floor or the void of space, completely devoid of objects, characters, or text. The camera remains entirely static, allowing only a very subtle, slow vertical drift and a gentle shimmer near the top center to suggest faint light filtering through water or a quiet current moving through the void. The lighting is low-key and monochromatic, emphasizing depth and isolation through a fluid, monolithic aesthetic.\n\nThe audio landscape opens immediately with a continuous, low-frequency electronic drone that fills the stereo field with a resonant sub-bass hum, creating an immersive and slightly ominous foundation. Layered atop this steady pulse is a faint, high-pitched metallic ringing tone that echoes gently at irregular intervals, introducing a quiet tension. As the scene settles, a soft, watery whoosh or bubbling sound emerges briefly on the right channel, lasting less than half a second before dissolving back into the ambient bed. There is no melody, rhythm, or human presence, only minimalist, non-melodic sound design that pairs perfectly with the silent visuals to evoke a profound sense of stillness, suspense, and atmospheric depth.","video_1_relative_path":"videos/61c573682782ef17.mp4","video_2_relative_path":"videos/dc2372e424d59bd4.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_3/00000022","text_prompt":"Set in a dense, shadow-drenched jungle at night, the scene opens with a cinematic wide shot rendered in deep visual fidelity, dominated by cool dark greens and blues pierced by the warm, flickering glow of firelight. Three large, quadrupedal predators resembling felines or wolves slip silently from thick ferns and undergrowth, their bodies low to the ground and muscles coiled tight. They move with cautious precision, ears pricked forward and tails tucked, sniffing the damp air as they close in on the clearing. Suddenly, a torch ignites nearby with a sharp, explosive whoosh and a burst of crackling flame, casting dynamic, dancing shadows across the foliage and revealing the sleek texture of the animals’ fur. The camera holds steady before introducing a slight handheld shake, grounding the moment in visceral immediacy.\n\nThe frame shifts to a medium close-up of a tall, blue-skinned humanoid standing firm in the undergrowth. His elongated limbs and prominent cheekbones are sharply defined by the torchlight, while minimal attire—a simple loincloth and shoulder straps adorned with bone ornaments—suggests a primal warrior. He grips the flaming torch in his right hand, his expression intensely focused, eyes wide and mouth parted as if bracing for impact. Behind him, the pack continues its advance, now fully illuminated by the steady orange-yellow flame. As the shot widens to reveal the full confrontation, the creatures begin to circle aggressively, their low growls and heavy footfalls echoing through the dense canopy. One predator suddenly leaps forward, jaws agape, prompting the humanoid to raise the torch defensively. The fire flares dramatically, momentarily washing the scene in blinding light before settling back into a lower, tense glow. The audio landscape remains entirely diegetic, layered with the continuous hiss of burning wood, snapping branches, claw scrapes against bark, and the humanoid’s strained, rhythmic breathing. No dialogue breaks the silence, leaving the primal standoff suspended in unresolved, breathless tension.","video_1_relative_path":"videos/2fe1e0d4898b4b08.mp4","video_2_relative_path":"videos/89f7b309fac1197c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_3/00000049","text_prompt":"Cinematic space thriller sequence, captured in a static low-angle medium-close lens of two astronauts suspended in Earth orbit, tethered to the exterior hull of a spacecraft. The camera remains fixed, angled upward from beneath the module, framing the figures against a backdrop of swirling blue oceans and white cloud formations that fill the upper half of the frame. Natural, high-contrast sunlight casts crisp highlights across the metallic surfaces of their EVA suits and equipment, while sharp shadows fall across the riveted aluminum plating they are servicing. The astronaut on the left, an American flag patch visible on the right shoulder, grips a long-handled wrench, applying rotational force to a fastener while their helmet visor catches reflections of the spacecraft structure and Earth’s curvature. Slightly behind and to the right, the second astronaut steadies a cylindrical component with one hand, assisting with precise alignment, their suit equipped with a prominent life-support backpack and coiled tethers trailing toward unseen anchor points. The soundscape is strictly diegetic and minimalistic, punctuated by faint electronic telemetry beeps and a subtle, steady mechanical hum that underscores the isolation and precision of the extravehicular activity. Overlapping the quiet labor, a calm, mid-range male voice remarks with wry camaraderie, “Well, you’re the genius up here. I only drive the bus.” A slightly higher-pitched female voice responds in a measured tone, “Yeah, well, just keep your hands steady up there.” The fixed framing holds without cuts or pans, allowing the scale of the planet below and the intricate details of the spacewalk to settle, establishing a mood of focused professionalism tempered by quiet humor against the vastness of space.","video_1_relative_path":"videos/9c38895aebeb4e7e.mp4","video_2_relative_path":"videos/0f7fc568bfb4cf57.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_3/00000093","text_prompt":"A wide static shot opens on a minimalist science-fiction tableau, rendered in deep blacks and a subtle scatter of starfield speckles under hard directional light from an unseen source. Dominating the frame is a large, white saucer-shaped spacecraft, its smooth metallic hull catching crisp highlights along the ridges and edges of its structure and two prominent nacelles attached by slender pylons. Centered atop the vessel’s upper deck, a lone figure in a bright red spacesuit crouches low, gripping the ship’s rim with gloved hands. The suit’s segmented armor plating and glossy helmet visor gleam under the harsh illumination, while visible life-support hoses trail off into the void. The camera remains completely locked in place, refusing any pan, tilt, zoom, or dolly movement, preserving the composition as a frozen moment of suspended tension against the cosmic backdrop.\n\nAurally, the scene is defined by a single, unwavering layer of sound: a continuous high-frequency hiss occupying the upper-mid to high range, steady in volume and pitch with no discernible modulation, rhythm, or fade. The tone suggests pressurized gas escaping into a vacuum or the sterile electronic hum of advanced machinery operating in silence, delivered without reverb or spatial diffusion to reinforce the impression of an open, non-reflective environment. There are no musical elements, footsteps, mechanical clanks, or human vocalizations, only this relentless tonal presence that fills the auditory field uniformly. The absence of dynamic motion and ambient noise amplifies the mood of isolation and technological sterility, crafting a cinematic pause that balances vulnerability with the quiet promise of imminent action.","video_1_relative_path":"videos/f3a772bfe8786174.mp4","video_2_relative_path":"videos/6e17c40404bcfd0c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_4/00000007","text_prompt":"A tense, dialogue-driven cinematic scene opens on a static medium shot inside a modest, brightly lit room with pale teal walls and a large patterned rug draped across the back wall. In the foreground, two soldiers clad in desert camouflage tactical vests stand with their backs to the camera, framing an older man seated on a low couch upholstered in rich red-and-gold fabric. The elder wears a white skullcap, a dark brown robe over loose white trousers, and sports a greying mustache and beard; his expression is intense as he locks eyes with the soldiers, speaking with rising anger and accusatory force. He gestures sharply with his right hand before pressing his fingers to his chin, while behind him, through an open window, four fully armed soldiers in combat gear and helmets watch in silent observation, amplifying the claustrophobic tension.\n\nThe audio remains acoustically dry with only a faint natural reverb and subtle inhalations, focusing entirely on the spoken conflict. An agitated older man delivers a sharp, Levantine Arabic accusation, stating, “القصاب! ما عنده رحمة، ابن إبليس.” As his voice peaks, a calm, neutral American-accented male voice overlaps from off-screen, stating, “The man who comes, they call the butcher.” Stripped of music or ambient noise, the scene forces the viewer’s attention entirely onto the raw verbal confrontation and the heavy power dynamics between the civilian elder and the surrounding military presence.","video_1_relative_path":"videos/3d8c4a971e963479.mp4","video_2_relative_path":"videos/a8781675caa4ece0.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_4/00000043","text_prompt":"A tense historical drama unfolds in a tightly framed medium close-up, shot on a locked-off camera with a shallow depth of field and a muted, desaturated palette. Chiaroscuro lighting slices across the face of a middle-aged man with short brown hair, dressed in a dark suit jacket, crisp white dress shirt, and patterned tie. He stands in a dimly lit, formal room where a softly blurred background reveals a framed painting to the right and a lamp casting a warm, yellowish glow further back. He remains almost entirely still, save for subtle micro-movements like slight blinking and minimal shifts in gaze, his serious, contemplative expression radiating quiet authority and foreboding.\n\nA calm, authoritative male voice with a mature, slightly gravelly timbre begins speaking in measured, Standard British English, stating \"Prime Minister Baldwin may deny this, but Hitler’s intent is crystal.\" The vocal performance carries a weight of historical gravity, perfectly synchronized with his restrained facial presence. Beneath the speech, a faint, continuous low-frequency hum or drone persists in the sub-bass range, creating a sense of enclosed stillness without any identifiable source. The soundscape is deliberately stripped bare—no music, no footsteps, no ambient chatter—allowing the stark clarity of the declaration and the subtle tension of the silence to dominate the scene.","video_1_relative_path":"videos/2dde4ca66417e549.mp4","video_2_relative_path":"videos/07f6af5d8e44bffb.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_4/00000050","text_prompt":"Cinematic medium-wide shot, static camera, flat overcast lighting, and a muted, desaturated palette establish a late-twentieth-century urban alleyway lined with vintage payphones on the left and parked classic cars on the right. An older man with gray hair, dressed in a dark suit and brown shoes, stands at the third booth from the foreground. His posture is slightly hunched with concentration as he holds the receiver to his ear with his right hand and methodically presses the keypad with his left. In the background, a few pedestrians drift away down the alley and a yellow bus lingers in the distance, reinforcing the quiet isolation of the moment.\n\nThe audio landscape is dry and intimate, anchored by the sharp, metallic rhythm of mechanical dial clicks that sync precisely with the man’s finger movements. Overlapping the final presses, a calm, neutral male voice begins, stating \"Six one seven five nine seven four.\" Faint city hum, distant traffic rumble, and indistinct footfalls provide a subtle ambient bed, while a slight natural reverberation suggests the hard surfaces of the open-air corridor. Without music or dramatic effects, the scene focuses entirely on the tactile realism of analog telephony, capturing a solitary, purposeful act of communication across distance.","video_1_relative_path":"videos/e4c536151c8a8835.mp4","video_2_relative_path":"videos/900c3efe5f5b18c9.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/movie/movie_6/00000007","text_prompt":"A cinematic wartime sequence opens on a low-angle medium shot tracking three dark propeller planes in tight formation against a pale blue sky streaked with faint clouds. The central aircraft dominates the frame, its wings marked with a white star insignia and bold white NAVY lettering, while two smaller planes flank it. Beneath the lead fuselage, an olive-green bomb detaches and falls away as the camera pushes forward. A sharp, metallic whoosh pans rapidly across the stereo field, immediately giving way to a deep, resonant boom that suggests a massive off-screen impact. The scene cuts abruptly to a wide vista of a snow-covered mountain range bathed in the warm, golden glow of dawn or dusk. A lone soldier in heavy winter combat gear sprints down a steep, snow-laden slope toward the lens, his heavy breathing and rhythmic footfalls audible beneath the rising tension. Behind him, the same formation of planes dives and banks through the air as a colossal explosion erupts on the mountainside to his left, hurling a towering plume of orange fire and black smoke into the crisp atmosphere. A high-pitched whine climbs into a thunderous, bass-heavy detonation that shakes the audio landscape, perfectly synchronized with the visual burst. As the soldier presses his desperate descent, a second, even larger blast detonates further up the slope, engulfing the terrain in a wall of fire and tumbling debris. The camera holds static, emphasizing the sheer scale of the destruction against the small, fleeing figure. Silhouetted against the fiery backdrop, the planes continue their aerial maneuvers overhead while sparks and embers drift through the air, illuminated by the searing orange glow. The ambient wind rises, mingling with the sustained roar of the inferno and the distant clatter of falling snow, as a heroic orchestral score swells to a dramatic climax. Driving strings, pounding percussion, and soaring brass motifs underscore the urgency and peril, painting a stark contrast between the cold white landscape and the relentless heat of the blasts, leaving the viewer suspended in a moment of high-stakes survival.","video_1_relative_path":"videos/26fbad454290ef7b.mp4","video_2_relative_path":"videos/d3a98ae1c3049bc0.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_6/00000039","text_prompt":"Cinematic action thriller sequence, shot on a handheld camera with a low-angle tracking perspective, moving rapidly through a spacious, modern airport terminal illuminated by cool overhead recessed lights and diffuse daylight filtering through large right-side windows. A tactical unit of at least four officers clad in full black gear—helmets, gas masks, bulletproof vests, and rifles—sprints aggressively from the mid-ground toward the lens, their heavy boots striking the polished floor in tight synchronization with a relentless, high-tempo electronic soundtrack. The driving four-on-the-floor kick drum and pulsating sub-bass dominate the mix, layered with metallic percussion stabs and rapid hi-hats that accent every visual shift, while the complete absence of ambient terminal noise heightens the tension. One central officer’s vest bears the bold white Cyrillic text “ПОЛИЦИЯ,” standing out clearly despite the camera’s urgent jostling and motion blur. As the lead group surges past the frame, the camera whip-pans left, momentarily blurring the environment before locking onto a second wave of officers emerging in formation, weapons raised and silhouetted sharply against the bright window light. In the distant background, scattered civilians remain frozen in alarm near seating areas, some crouched or seated, underscoring the suddenness of the raid.\n\nThe perspective tightens into an over-the-shoulder close-up tracking a lead officer as he barrels down a narrower corridor lined with dark wood-paneled walls, his gas mask reflecting the overhead lights and his rifle gripped firmly with both hands while a partner trails closely behind. The acoustic space shifts to a tighter, more confined reverb as the music sustains at peak intensity without any breakdown, the rhythmic footfalls and faint heavy breathing of the operator weaving seamlessly into the wide-stereo, consistently loud electronic score. The kinetic momentum builds through intensified edge blur and precise audio-visual sync, culminating in an abrupt, hard cut mid-stride that severs both image and sound simultaneously, leaving the scene suspended in a state of heightened, imminent action.","video_1_relative_path":"videos/9f52b9c4c8aa7b09.mp4","video_2_relative_path":"videos/2e1c30d8b2e9eb6e.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/movie/movie_6/00000057","text_prompt":"A tense, diegetic soundscape opens inside a cramped, dimly lit military transport vehicle, its walls lined with padded blocks and overhead beams. Sickly green-yellow light pours through a rectangular rear hatch, casting harsh backlighting that silhouettes the figures and throws deep shadows forward while dust motes drift through the stagnant air. A constant low-frequency engine rumble underpins the scene, occasionally punctuated by high-pitched metallic squeaks of loose fittings vibrating under strain. The camera holds a static but subtly trembling frame, mimicking the vehicle’s instability as it traverses a desolate, debris-strewn landscape visible through the open ramp beneath a hazy, yellow-green sky. Two soldiers occupy the foreground, both tense and angled toward the opening; one on the left wears a quilted helmet cover and grips a rifle, while his companion steadies himself against the wall. A sudden metallic clang rings out, sharp and resonant, followed by the heavy thud of gear striking the floorboards and the prolonged scrape of equipment sliding across the cabin.\n\nA tense, mid-thirties male soldier in the left foreground turns sharply, his breath visible in the cold air, and projects a forceful, urgent Mandarin voice over the mechanical din, stating \"Forward!\" He immediately pivots toward the group, raising a gloved hand for emphasis, and delivers a second, louder command with strained vocal intensity: \"No retreat!\" The volume of his orders draws sharp inhales from the surrounding men, causing one nearby soldier to flinch as boots shuffle and rifles shift against armor. Responding instantly, the lead soldier lunges forward, gripping a comrade’s shoulder and hauling him upright. Bodies jostle and helmets bump softly against the padding as the group surges into motion, accompanied by the wet rustle of fabric, the scuff of boots, and a brief, low grunt of exertion. The engine hum and scattered metallic clinks persist, syncing with the perceived acceleration over rough terrain, leaving the scene suspended in unresolved wartime urgency as the camera holds on the chaotic mobilization.","video_1_relative_path":"videos/a953ab3814f730b8.mp4","video_2_relative_path":"videos/c111a96270e2c0fa.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_6/00000065","text_prompt":"Cinematic war thriller, shot on handheld with a 35mm lens aesthetic, opens in a rain-soaked, neon-drenched metropolis at night. The palette is anchored by deep blacks and desaturated grays, punctuated by saturated orange-yellow glows from distant streetlights and signage. Heavy diagonal rain streaks across the frame, generating constant motion blur and slick reflections on the wet pavement as the camera tracks a man in dark tactical gear sprinting left to right through the foreground, his face taut with exertion. The background dissolves into soft bokeh circles, emphasizing urban density before a hard cut drops the viewpoint to a low, ground-level angle. Here, a debris-choked street or bridge is bathed in harsh yellow emergency light, with smoke billowing through mid-ground combat and dust thick in the air. A soldier in a brown jacket lies prone in the rubble, scrambling forward as silhouettes blur past him in chaotic motion.\n\nThe camera pushes into a medium close-up as the soldier halts, his eyes widening in desperation while he looks frantically upward. A strained, desperate male Mandarin voice cries out, \"Squad leader, save me!\" Rain catches the light as it sheets down his face. The perspective shifts to a high-angle, top-down view, framing him flat on his back in the mud, both arms reaching upward toward an unseen figure looming above. The lighting dims, casting deep shadows across his features and the surrounding wreckage. A strained male Mandarin voice continues, gasping, \"I am a soldier from the Sichuan Army’s 26th Division!\" Throughout the sequence, a relentless orchestral action score drives the pace, layered with prominent strings, brass stabs, and timpani rolls that swell to match his emotional peak. The soundscape is a dense tapestry of heavy rainfall, metallic clanks, muffled explosions, scuffling boots on wet gravel, and the soldier’s ragged breathing and strained cries, maintaining a continuous, high-volume chaos that leaves the outcome unresolved and steeped in visceral peril.","video_1_relative_path":"videos/f6d7dddf36f509df.mp4","video_2_relative_path":"videos/b3cbfa0c8fd3b291.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/movie/movie_6/00000083","text_prompt":"A tense military survival sequence opens in a wide, static shot of a dense forest under bright daylight, where tall leafy trees create a dappled light effect across a palette of greens and earth tones. A low, ominous musical drone establishes immediate suspense before the action begins. The frame cuts to a medium tracking shot that sweeps right to left, following a soldier in full camouflage gear as he sprints through the woods. Wearing a boonie hat, tactical vest, backpack, and gloves with a rifle slung over his shoulder, his rapid and purposeful strides kick up dry leaves and snap twigs with sharp, synchronized footfalls. The camera pans quickly to keep him centered, introducing slight motion blur that heightens the urgency, while the score swells with subtle rhythmic percussion beneath the ambient wind and rustling foliage.\n\nThe soldier abruptly halts behind a thick tree trunk, transitioning into a cautious peek-out maneuver. The camera tightens into a close-up on his upper body and face, capturing his focused, tense expression as his eyes scan the off-frame environment. He raises a black semi-automatic pistol with both hands, and a crisp metallic click echoes precisely as his fingers manipulate the weapon’s slide. Shifting his weight slightly to maintain cover, he adjusts his grip, the soft rustle of tactical fabric blending with the sustained, unresolved tension of the score. The scene lingers on this suspended moment of alert readiness, immersing the viewer in the soldier’s heightened awareness through dynamic camera movement, natural lighting, and a meticulously layered soundscape of foley and atmospheric music.","video_1_relative_path":"videos/79a349def28a470c.mp4","video_2_relative_path":"videos/9c0fe1413d4fdc0b.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_1/00000054","text_prompt":"Open with a locked-off medium close-up of an old stone-and-wood window set into a weather-worn wall, bathed in bright late-afternoon sunlight streaming from the upper left. The directional light carves a warm chiaroscuro across the scene, illuminating the right half while casting the interior behind two seated figures into soft shadow. A small vine with fresh green leaves climbs the left jamb, hinting at quiet growth amid aged decay. On the sill sit two young East Asian adults, both looking downward with hunched shoulders that convey a palpable, unspoken tension. The man on the left wears a cream cable-knit sweater marked with faint brownish stains, while the woman on the right is dressed in a beige T-shirt printed with red uppercase lettering and inward-facing bird silhouettes. A low, steady indoor hum grounds the space as the man takes a slow, audible breath. A hesitant, apologetic male Mandarin voice begins, his tone subdued and slightly breathy as he stammers through his search for words: \"I-I'm not, I wasn't trying to say that.\" He keeps his gaze fixed on his lap, occasionally glancing up with anxious eyes before looking away again, his voice carrying a mild stutter as he continues in a reflective, regretful tone: \"It's really good, I just feel it's a bit of a pity.\"\n\nThe woman listens in silence, her expression calm but faintly concerned; she briefly lifts her eyes toward him before dropping them back to her hands resting on the sill. As his halting explanation concludes, she turns her head slightly toward him, her eyebrows lifting in a gesture that blends gentle reproach with quiet empathy. A clear, mildly teasing yet caring female Mandarin voice responds, maintaining steady eye contact for a moment before her gaze softens back to her lap: \"What is there to feel sorry for?\" The camera remains completely still, preserving the intimate framing as the warm, earthy palette of beige, stone, and muted wood envelops the pair. The absence of music leaves only the faint ambient room tone and the emotional weight of their exchange hanging in the air, ending on a brief beat of silence that underscores the lingering, unresolved tenderness between them.","video_1_relative_path":"videos/10fc12493155d828.mp4","video_2_relative_path":"videos/0bc44e5a781b30cf.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_10/00000000","text_prompt":"A serene, naturalistic cinematic scene opens on a static medium shot of a tranquil, sun-dappled courtyard bordered by lush greenery and a weathered wooden pergola. Bathed in soft daylight that casts gentle shadows across the stone path, two elderly figures stand at the center of the frame. The man, with receding grey hair, wears a black jacket over a crisp white collared shirt and dark trousers, while the woman beside him sports short dark hair, a textured green cardigan over a patterned blouse, and a red-and-white skirt. She holds a stainless steel thermos with a black handle, her fingers working to unscrew the lid as a large silver birdcage housing a small black bird hangs nearby, with several other colorful cages suspended among the foliage in the background. The atmosphere is quiet and grounded, anchored by the rich greens of the garden and the warm, natural color palette.\n\nAs she peers into the thermos, a calm, conversational elderly female Mandarin voice begins, stating \"这都下面的干部送来的。\" She continues in the same steady, matter-of-fact tone, \"说是看咱海子。\" The metallic scrape of the lid against the container blends with the faint, sporadic chirping of birds and the soft rustle of leaves drifting through the open space. The man listens attentively, his gaze shifting between her and the hanging cages, before a mildly surprised elderly male Mandarin voice responds, \"看海子?\" His subtle eyebrow raise and slight turn toward her capture the quiet intimacy of the exchange. The scene holds on the two of them amidst the dappled light and hanging cages, the audio remaining purely diegetic—clear, close-miked dialogue layered over authentic environmental textures, with no musical score or artificial effects, preserving the grounded, everyday realism of the moment.","video_1_relative_path":"videos/c4df7b27eb3f4425.mp4","video_2_relative_path":"videos/9c2c5667f88df8e2.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_10/00000006","text_prompt":"Rendered in a cinematic widescreen 16:9 frame with a shallow depth of field, the scene opens on a brightly lit, open-plan maker-space saturated in industrial yellows, crisp whites, and cool greens. At a lime-green workbench cluttered with a grey laptop, white keyboard, silver mouse, tangled cables, CD cases, and a blue-and-white water bottle labeled “KICKS,” a large black monitor faces away from the camera. In the mid-ground, a seated man with dark shoulder-length hair, a short beard, and a grey polo shirt leans forward, his eyes fixed on the screen and his right hand hovering over the keys. Behind him stands a taller, curly-haired colleague in a dark-grey Under Armour T-shirt, one hand resting on his hip while the other points toward the monitor. Against a faint, persistent electronic hum, the standing man asks in a light, teasing tone, “You have to download your own media player?”\n\nThe camera executes a barely perceptible push-in, drawing the viewer closer as the seated man glances up, eyebrows raised and lips parting in soft amusement as he replies, “Oh.” The standing man breaks into a broad grin, leaning in with playful pride to exclaim, “Look at me, I traveled back to 2009.” Both share an easy laugh, their shoulders shaking slightly before the standing man relaxes his arm and keeps pointing at the screen. The room’s even, bright lighting emphasizes the vivid décor and nostalgic backdrop of a red telephone booth, string lights, and a white banner reading “CAN YOU HACK IT? / D.R.I.” as a light, upbeat instrumental track fades in—acoustic guitar strumming a simple major-key progression joined by a gentle bass line and brushed percussion—sitting quietly beneath the dialogue to enhance the playful mood.\n\nThe atmosphere shifts abruptly as the seated man suddenly refocuses on the monitor, fingers poised over the keys. The standing man’s expression tightens; he leans forward, eyes narrowing, and blurts, “Wait a sec.” A single crisp mechanical click punctuates the moment, underscoring the sudden realization as the music continues to play under the final word. The scene freezes on both men intent on the screen, the shallow focus isolating their reactions against the softly blurred, creatively charged workspace, leaving the unexpected development on the monitor just out of frame.","video_1_relative_path":"videos/145978594aae143f.mp4","video_2_relative_path":"videos/3f641044ac1ef7db.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_10/00000011","text_prompt":"Cinematic office scene, locked-off medium shot at eye level, high-key natural daylight streaming through large windows with vertical blinds, casting soft horizontal highlights across neutral beige walls and a wooden desk. The moderate depth of field keeps three men in focus while subtly separating them from the bright background, with vivid red plaid and pastel pink shirts contrasting against the calm workspace palette. In the left foreground, a man with shoulder-length dark hair and glasses, wearing a red-and-black plaid flannel over a white tee, stands holding a small grey bowl, stirring and eating while listening. Seated slightly behind him, a man in a blue-and-white striped polo faces right toward a computer monitor glowing with lines of multicolored code. To the right, a third man with curly light-brown hair and a light pink button-down shirt steps forward from the window and begins to speak.\n\nA calm, conversational male voice in a light pink shirt begins, stating \"The player I gave them was from a retired repository that was audio only.\" He brings his hands together before spreading them apart to stress his next point: \"Video compression is a completely different paradigm.\" The seated man turns his head fractionally to acknowledge the statement, while the man in plaid pauses mid-chew, lowering his spoon to watch attentively. Maintaining an even pace, the speaker delivers a mildly critical comparison, lifting his eyebrows slightly as he notes \"What they have is like Pied Piper, but not as good.\" He continues without missing a beat, his voice clear against the absence of background music or ambient noise. A confident male voice concludes \"People will see the difference for themselves,\" but the line is abruptly cut off mid-thought, leaving a brief silence as the image holds on the same steady composition.","video_1_relative_path":"videos/f1e40016cb3c398e.mp4","video_2_relative_path":"videos/48279ca205530b49.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_10/00000072","text_prompt":"A static medium two-shot, eye-level and framed over the right shoulder of an older man in a dark charcoal jacket, establishes an intimate domestic kitchen-dining space bathed in soft, diffuse daylight. Muted greys, whites, and beiges dominate the palette, with a white water dispenser, black coffee maker, and light shelving holding mugs subtly anchoring the everyday setting. The older man sits slightly left of center, his back partially to the camera, while a younger man in a grey suit, white shirt, and black tie occupies the right third of the frame, his eyes lowered and hands resting motionless on the table. A faint sigh breaks the quiet room tone as the older man exhales audibly, his mid-low, slightly raspy Mandarin voice carrying a tone of tired resignation, stating \"明玉也不让我送生活费了。\" The younger man remains silent, absorbing the statement with a faintly furrowed brow, his posture reflecting the heavy yet subdued atmosphere.\n\nAfter a brief, weighty pause where only the ambient hum of the room lingers, the younger man slowly lifts his gaze. His clear, mid-range Mandarin voice rises gently with measured concern, asking \"那明玉靠什么生活？\" The older man’s lips close in attentive silence, his focus fixed on his companion. The camera remains completely locked off throughout, allowing the restrained performances and quiet acoustics to underscore the unspoken familial tension. The scene holds on their contrasting emotional states—the weary acceptance of the older man and the quiet worry of the younger—leaving the conversation suspended in a moment of unresolved intimacy.","video_1_relative_path":"videos/7866517fb787553e.mp4","video_2_relative_path":"videos/d36bc7acdf6f8530.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_10/00000078","text_prompt":"A quiet, intimate domestic drama unfolds in a modest bedroom bathed in cool daylight filtering through sheer white and heavy brown curtains, contrasted by the warm glow of a bedside lamp. Shot with a shallow depth of field to isolate the characters against a backdrop of framed art, scattered posters, and shelves of personal clutter, the scene opens on a young East Asian man in his mid-twenties, dressed in a grey crew-neck sweater over a plaid shirt and blue jeans. He bends over an open suitcase on the bed, rummaging through clothes as the soft rustle of fabric fills the quiet room. Looking up toward someone off-screen, a mildly impatient young male Mandarin voice states, \"Dad, don't worry about me, I can pack everything myself.\" He straightens, lifts a dark garment, and continues in a controlled, assertive tone, \"I'll handle it on my own.\"\n\nThe camera cuts to a reverse shot of his father, an older East Asian man in his late fifties with silver-flecked hair, wearing a dark quilted vest over a grey patterned long-sleeve shirt. Seated near the foot of the bed, he props his chin on his hand, backlit by the bright window, his expression shifting from weary concern to tender hesitation. A calm, lower-pitched male Mandarin voice with a gentle northern inflection urges, \"You should hurry and eat before it gets cold.\" After a brief pause, the father’s voice softens into a wistful murmur, \"Son.\" The son replies with a quiet, neutral acknowledgment, \"Yeah?\" The father meets his gaze, his delivery tinged with melancholy and vulnerability as he admits, \"I've never been abroad myself.\" The scene holds on his thoughtful face, the naturalistic soundscape of soft breaths and subtle fabric movements underscoring the emotional weight of the farewell, while the suitcase rests as a quiet metaphor for departure and the uncertainty of leaving home.","video_1_relative_path":"videos/c2fb6c0f0ccd8df1.mp4","video_2_relative_path":"videos/2f3bcf9da855d8c4.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_11/00000009","text_prompt":"A contemporary dramatic scene opens in a locked-off medium close-up, bathed in soft key lighting that highlights the left side of the frame while leaving the background gently under-exposed to foster intimacy. The color palette contrasts warm skin tones and light-grey clothing against cool blues and dark woods, subtly separating the kitchen-dining space from the adjacent living area. A man in his late twenties or early thirties, wearing a light-grey long-sleeved crew-neck sweatshirt, stands facing slightly rightward toward an off-screen presence. Behind him, dark wood cabinets and a deep-blue wall panel featuring a black bamboo motif anchor the composition. He speaks in a mildly defensive, steady Mandarin voice, his brows raised as he declares: \"饭可以乱吃，话可不能乱讲。\" The room remains quiet, his clear articulation cutting through the silence without any competing ambient noise. Without breaking the static frame, he continues, his expression turning earnest yet slightly exasperated as he emphasizes his point in a mid-range male voice with a slight northern accent: \"我这是正经开店的.\"\n\nA straight cut shifts to a medium close-up of a woman seated at a dark wooden counter, also in her late twenties or early thirties. She wears a black blazer over a white shirt patterned with vivid reds, yellows, and greens, her long dark hair framing her face. Holding a small white ceramic spoon near her lips, she looks up at him with a skeptical half-smile. In a clear, mid-to-high female Mandarin voice, she replies with a teasing and lightly mocking tone: \"你是正经人啊？\" The background reveals a softly lit living area with a sofa and decorative items, kept out of focus to maintain the conversational rhythm. The shot cuts back to the man in the exact same position, his eyebrows lifting in mock incredulity as he challenges her in a playful, rising intonation: \"你失望啊？\" Returning to the woman, she lowers her gaze briefly before looking up again, still cradling the spoon. With a wry, exaggerated sigh, she delivers her final line in a drawn-out, theatrical Mandarin voice, underscoring her mock disappointment: \"好失望啊。\" The scene holds on her expression before ending abruptly, preserving the tight static framing and the cohesive, conversational mood.","video_1_relative_path":"videos/e16a937e2b1ba355.mp4","video_2_relative_path":"videos/3060c786869d29df.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_11/00000082","text_prompt":"Cinematic domestic realism, captured with a static camera and a 50mm lens perspective, bathed in soft, diffuse daylight and a muted palette of whites, greys, and natural wood tones. The scene opens in a quiet interior where a medium close-up frames a young East Asian man in his thirties, wearing a crisp white button-down shirt, seated at a dining table with a wooden shelf of wine bottles, a glass pitcher, and a small potted plant visible behind him. His brows furrow and his lips part as he leans slightly forward, a tense, rising male Mandarin voice asking, \"What do you mean by hmm?\" The camera holds steady on his agitated expression while a faint indoor room tone underscores the quiet tension.\n\nA straight cut shifts to a medium shot of an older East Asian man in his sixties, seated on a pale sofa in a dark-grey cable-knit sweater vest over a striped collared shirt. Behind him, a tall pantry cabinet and a sliding glass door revealing leafy greenery ground the space in everyday realism. He turns his head slowly, eyes narrowing as he chews, and a brief, puzzled male Mandarin interjection follows: \"Hmm?\" The edit returns to the younger man, whose agitation sharpens; his eyebrows knit tighter, he leans in further, and his voice quickens into an insistent, stammering demand: \"No, what do you mean? What exactly are you trying to say?\" The camera remains locked, letting his vocal urgency fill the quiet room.\n\nAnother cut brings us back to the older man, who still cradles a small white bowl and spoon. He lifts his gaze upward, exhales a weary sigh, and waves his free hand in a sweeping gesture of dismissal. The older man’s low, gravelly male Mandarin voice delivers a calm, dismissive reply: \"Alright, alright, alright… I’ll tell her next time I see her.\" His words carry a quiet finality as he lowers his eyes back to the bowl, ending the exchange without showing the younger man’s reaction. The scene closes on the static framing and minimal ambient sound, leaving the subdued emotional weight of the confrontation hanging in the softly lit space.","video_1_relative_path":"videos/15963aa6b9a14732.mp4","video_2_relative_path":"videos/2f0154248aecce14.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_11/00000085","text_prompt":"A nocturnal cinematic scene inside a moving car, framed in 16:9 with a cool, desaturated palette that emphasizes urban melancholy. The camera holds a medium close-up from the passenger-side window, using shallow depth of field to isolate two occupants against a backdrop of blurred city lights streaking across the windscreen. Practical lighting from passing streetlamps and a faint dashboard glow casts soft reflections on black leather seats embroidered with gold “SARAH” lettering, while a continuous low-frequency engine rumble grounds the confined space. In the passenger seat, a young woman with short dark hair, bangs, pearl studs, a white ruffled blouse, and a beige coat leans forward, clutching a rectangular snack box to her chest. A young female Mandarin voice, high-pitched and trembling with acute distress, begins, stating “我我不能这样，我觉得特别丢人，特别内疚，我我受不了，我不能这样下去了。” She gestures weakly with her free hand, palms open toward herself, conveying profound self-reproach as the vehicle carries them through the night.\n\nA hard cut shifts the perspective to a wider reverse angle from the rear seat, looking forward between the front headrests with deeper focus to reveal more cabin detail. The man behind the wheel, wearing a black leather jacket over a light shirt, turns his profile toward her, his expression shifting from mild surprise to quiet resolve. A steady male Mandarin voice, calm and reassuring, responds: “哎呀，你别想了，钱是我借的，丢人都丢我的脸。” As he speaks, he briefly lifts his right hand off the steering wheel, palm upward to emphasize his words, before returning it to the wheel. The woman listens in silence, her shoulders sagging slightly as her grip on the snack box loosens, though she keeps it close. Streetlight reflections ripple across their faces, the cool desaturation of the scene giving way to a muted warmth in the gold embroidery, underscoring the unspoken shift from shared shame to quiet acceptance as the car continues its journey through the dark city.","video_1_relative_path":"videos/844bc8937e587f76.mp4","video_2_relative_path":"videos/a0e137e9bdd72059.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_12/00000014","text_prompt":"A static medium close-up establishes an intimate, naturalistic scene bathed in soft daylight from camera-right, casting gentle shadows that model the face of an East Asian man seated in a brown upholstered booth. He wears a light beige quilted vest over a blue-and-white plaid shirt, his brow faintly furrowed as he looks slightly off-camera toward a companion. Behind him, a wall panel featuring large white flowers on a dark teal background fills the left frame, while two out-of-focus patrons sit blurred in the distance to the right. Shallow depth of field isolates him from the muted earth tones and cool accents of the setting, and a white plate holding glossy dark-red braised meat rests just below the frame. A calm, steady male Mandarin voice begins, stating \"离城区特别远，而且这个出租车费也挺贵的。\" The soundscape is stripped down to his measured delivery over a barely perceptible room tone, emphasizing the restrained, everyday realism of the moment as he explains that the location is very far from the city center and the taxi fares are quite expensive.\n\nA single hard cut shifts to a matching medium close-up of an East Asian woman seated across the table, her long dark hair loosely tied back and her hands clasped near a small white ceramic cup. She wears a thick ribbed brown sweater, and behind her a tall window with sheer white blinds admits diffuse daylight, framing blurred green foliage and dark gray curtains. The lighting remains consistent, keeping her composed, slightly concerned expression sharply in focus while the background stays softly blurred. A measured, mildly concerned female Mandarin voice replies, \"主要是不方便叫车。\" The quiet ambience holds steady without clinking utensils or crowd noise, maintaining the intimate, dramatic tension of their logistical discussion as the shot ends abruptly mid-conversation, leaving the scene grounded in practical concern and naturalistic performance.","video_1_relative_path":"videos/d146706018d2e20d.mp4","video_2_relative_path":"videos/9dd59fc2fdacbb48.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_12/00000047","text_prompt":"Cinematic drama, 35mm lens, shallow depth of field, muted earth tones accented by cool window light and embroidered fabric. The scene opens on a static medium close-up of a young woman seated indoors, her straight black hair cut with blunt bangs framing a face bowed in quiet distress. She wears a light beige wool coat over a blue knit sweater, her lips slightly parted as she gazes downward. Diffuse frontal lighting washes her features evenly while the background—wooden shelves holding silver elephant figurines, colorful tins, a wicker basket, and a vintage radio—remains gently out of focus. Beneath a continuous, low-level indoor hum, a soft, low-pitched female Mandarin voice, tinged with shame and slight breathiness, murmurs, “我觉得很羞愧。” \n\nA hard cut transitions to a static medium shot of a second woman sitting upright in a dark wooden chair beside a window that casts a cool bluish light from screen left. Her shoulder-length dark hair frames a calm, intent expression as her eyes track someone just off-camera to her right. She is dressed in a maroon ribbed turtleneck beneath an off-white jacket, its sleeves detailed with intricate yellow-green-red floral embroidery. Behind her, a wooden cabinet topped with a lace doily and a glass pitcher rests against a wall dotted with pinned photographs, all softened by the shallow focus. The ambient room tone persists as a clear, mid-range female Mandarin voice, measured and conciliatory, responds, “二嫂，今天算账了，也不是谁和谁过不去。” The lighting maintains a subtle contrast between the warm interior tones and the cooler window light, leaving the conversational tension unresolved but softened by her composed demeanor.","video_1_relative_path":"videos/4d12f95a7ff03cfb.mp4","video_2_relative_path":"videos/d70dfbfcff918f66.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_12/00000069","text_prompt":"A tense, dialogue-driven scene unfolds in a desaturated, institutional interior, shot with a classic shot-reverse-shot rhythm and consistently shallow depth of field to isolate the speakers against blurred gray walls. Soft, diffused frontal illumination casts a clinical, cool-toned glow over the space, while a barely perceptible low-frequency electronic hum establishes the ambient audio bed. The sequence opens on a tight close-up of a middle-aged East Asian man with a shaved head, thin metal-rimmed glasses, and a neatly trimmed goatee, wearing a light-blue collared shirt beneath a dark pin-striped vest. He leans slightly forward, brows knitted, speaking forcefully in Cantonese with an impatient, authoritative tone: “定係伙記嘅安全重要？” \n\nA straight cut shifts to a matching over-the-shoulder frame, revealing an East Asian woman in her thirties with shoulder-length straight black hair and a maroon top that subtly punctuates the muted palette. She maintains an upright posture and steady gaze, answering in Cantonese with calm, measured confidence: “新聞歸新聞，安全歸安全。” The shallow focus keeps her sharply defined against the neutral backdrop, emphasizing her composed resolve as the ambient hum continues uninterrupted.\n\nThe shot returns to the man, now silent with his mouth closed, jaw set, and eyes locked on her, his rigid posture conveying unyielding tension. Cutting back to the woman for the final exchange, her eyebrows lift and eyes widen briefly for dramatic emphasis before settling into a determined stare as she delivers her concluding line in Cantonese with controlled indignation: “你要我唔依既定程序，淨係聽你個order？” The restrained performances and austere framing heighten the ethical clash between journalistic urgency and personnel safety, culminating in a freeze frame on her resolute expression as the low electronic hum fades.","video_1_relative_path":"videos/963d86e92e9e7f8b.mp4","video_2_relative_path":"videos/f6025fcafbe900f7.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_12/00000085","text_prompt":"A nostalgic, dialogue-driven scene opens on a medium two-shot inside a retro American diner, bathed in warm, late-afternoon sunlight that slices through horizontal blinds. The palette leans into saturated reds from the vinyl booth upholstery and muted browns of the wooden table, which is cluttered with half-eaten plates, a white coffee cup on a saucer, a glass soda bottle, chrome condiment holders, and a napkin dispenser. A woman with short, layered reddish-blonde hair, wearing a dark long-sleeved top and a chunky silver necklace, leans forward across the table, pointing her right index finger as she speaks. A calm, skeptical female voice with a North American accent begins, stating, \"This place? A coffee shop?\" Her tone is incredulous yet measured, cutting through the low-level diner ambience of soft cutlery clinks, distant chatter, and a subdued HVAC hum.\n\nA straight cut shifts to a medium close-up of the woman, where sunlight rakes across her face, casting soft highlights and gentle shadow stripes from the blinds. She holds her gaze off-screen, lips pursed in mild disbelief, as the restaurant murmur continues uninterrupted. The frame then switches to a matching medium close-up of the man opposite her. He has slicked-back blond hair, light stubble, and wears an open, brightly patterned short-sleeve shirt over a black T-shirt. Raising both hands slightly with palms up, cigarette still pinched between his fingers, he responds in a mid-range, lightly accented British voice: \"What's wrong with that? Nobody ever robs restaurants. Why not?\" As he speaks, he gestures outward before relaxing into a subtle smirk. The camera remains entirely static, utilizing a moderate depth of field that keeps both subjects sharply focused while the rows of empty booths and potted plants behind them soften into a gentle blur. The intimate, dialogue-driven rhythm and the contrast between her quiet skepticism and his casual bravado linger in the warm, nostalgic atmosphere as the scene concludes.","video_1_relative_path":"videos/c13145efb0de0f71.mp4","video_2_relative_path":"videos/3a59df3ccdf56056.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_2/00000005","text_prompt":"Bathed in the warm, low-angle glow of late-afternoon golden hour, a medium two-shot captures a man and a woman walking side-by-side along a waterfront promenade. The camera tracks gently to the right, matching their steady pace and keeping them framed from mid-torso upward against a backdrop of dark, rippling water and a pale stone wall lined with evenly spaced tree trunks. A shallow depth of field keeps the subjects sharply in focus while softening the background into muted earth tones of beige, greenish water, and dark blazers, punctuated by the woman’s flowing blonde hair and cream shirt. A soft, steady wash of wind and distant city ambience underscores the scene as the man, positioned on the right, turns toward her with earnest intensity. Lifting his right hand in an open-palm gesture, a calm, reflective male voice with a General American accent begins, stating, “I’ll meet you on the corner of 13th and Broadway.” His tone carries a wistful nostalgia, his mid-range pitch rising slightly at the end of the phrase. The woman listens intently, her long wavy hair catching the breeze as she holds his gaze, her black dress contrasting softly with the sunlit surroundings.\n\nWithout breaking stride, the pair continues their slow walk, the ambient wind and faint urban hum maintaining a consistent, intimate atmosphere. The man’s expression grows more animated as he glances ahead before refocusing on her face, his delivery shifting to a mix of vulnerability and gently amused self-deprecation. A vulnerable yet lightly humorous male voice continues: “And I thought I was going crazy, you know? But now I think it probably was you.” His moderate tempo and clear articulation reveal a past confusion now resolved through recognizing her quiet influence. The woman’s lips part slightly as though to respond, yet she remains silent, absorbing his words with a thoughtful stillness. The shot then transitions seamlessly into a close-up of her face, filling the frame as her eyes lower momentarily and her brows draw together in quiet contemplation. Sunlight catches the movement of her hair, emphasizing the emotional weight of the moment. With no dialogue breaking the silence, only the persistent wind and distant city sounds remain, leaving the narrative suspended in a poignant, unresolved beat that invites the viewer to linger on her unspoken reaction.","video_1_relative_path":"videos/3c2ee80fab629eed.mp4","video_2_relative_path":"videos/57f4c3fe68bbc361.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_2/00000029","text_prompt":"A romantic, nostalgic European travel film captured in a single continuous medium tracking shot, gliding backward along a narrow, gently curving cobblestone street bathed in warm late-afternoon sunlight. The scene is painted in muted earth tones of beige stone, cream coats, and olive jackets, punctuated by red doorframes and potted greenery that evoke a cozy, lived-in atmosphere. Two figures walk toward the camera at an easy pace, shoulders nearly touching: a light-skinned man with short brown hair and faint stubble, and a light-skinned woman with shoulder-length wavy blonde hair tied loosely back. As they move, a calm, playful male voice with a General American accent begins, “Really? No, I’m kidding. You wouldn’t believe… I even went back to the train station.” The woman listens with amused curiosity, her eyes flicking between him and the historic façades rising above them, while a black motorcycle rests against a right-hand wall and café tables line the sidewalk.\n\nThe camera maintains its smooth retreat, keeping the pair centered in a mid-shot as the man’s gestures grow more emphatic; he raises his right hand, palm outward, then points forward while his tone shifts to earnest sincerity, confessing, “I put up signs with my number in the hotel in case you’d been delayed.” Her smile softens into a reflective look as she glances downward and nods, absorbing his words against the gentle golden hue of the afternoon. As he leans in slightly, his voice dropping into a self-deprecating murmur, he adds, “I was a total fool waiting for you.” The audio remains stripped of music, grounded only by the low-level ambience of distant footsteps and a faint city murmur, allowing the quiet intimacy of their reunion to linger as the frame holds on their steady, unhurried walk.","video_1_relative_path":"videos/e1d2e37fa7a8fbcd.mp4","video_2_relative_path":"videos/8019987f6e7e48f4.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_2/00000085","text_prompt":"Cinematic scene, static medium two-shot, cool blue ambient lighting contrasting with a warm key light from camera-left softly illuminating two characters seated across a dark wooden table. In the foreground, a tall glass of water with a red straw sits beside a pint of amber beer, while behind them, large back-lit panels glow with stylized nautical imagery of a deep-blue sky, pink clouds, a white sailing ship, and a red-and-white lighthouse. The shallow depth of field blurs the background patrons, isolating the intimate exchange between a man in a light short-sleeved button-down and a woman in a pale blue collared blouse. A calm, conversational male voice begins, his tone mildly playful as he turns slightly toward her: “What about Kenny G? I mean, what about elevator music?” He raises his left hand to rest his chin on his fist, adopting a thoughtful pose. The woman leans forward, her eyes fixed on him with raised eyebrows, and answers with a bright, explanatory tone: “You know, jazz music that I know.” As the quiet bar ambience and faint distant chatter underscore the scene, he asks inquisitively, “What about it?” Her expression softens, hinting at personal attachment as she replies, “From my life.” She continues, her voice calm but earnest, gesturing lightly with her right hand for emphasis: “I just—I mean, find it relaxing.” The man listens attentively, maintaining steady eye contact, while the steady lighting and clean, speech-centric soundscape keep the focus entirely on their reflective exchange, leaving the conversation lingering in the quiet, atmospheric space.","video_1_relative_path":"videos/021c24724e09fca8.mp4","video_2_relative_path":"videos/5545a4b2539ce975.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_3/00000019","text_prompt":"Cinematic medium close-up in a dimly lit, warm-toned lounge resembling a quiet bar. A young woman with long dark hair, wearing a white textured newsboy cap, a black top, and a silver chain necklace, sits at a table. Her eyes widen and her mouth parts slightly as she gazes toward someone off-screen to her right. In the immediate foreground, the back of another woman’s head and shoulder frames the shot; she has short styled brown hair, large dangling earrings, and a patterned blouse with red, blue, and white motifs. Between them rests an open white laptop, while softly out of focus in the background, a man in a dark sweater sits at a counter under low ambient lighting. A light, whimsical instrumental track begins to play quietly beneath the scene, dominated by pizzicato strings, soft woodwind melodies, and gentle percussion at a moderate tempo, establishing a playful, intimate mood.\n\nA straight cut shifts to a tighter two-shot from over the shoulder of the woman in the cap, focusing on the speaker in the patterned blouse. She leans forward, eyebrows raised, delivering her lines with expressive hand gestures near her chest and chin. Her facial expressions shift rapidly from earnest concern to mild exasperation, then settle into confident emphasis. A calm, conversational female Mandarin voice begins, stating \"月，这才买二两瓜子。\" as she speaks, while the listener occasionally brings a small snack to her mouth and chews thoughtfully, maintaining steady eye contact. Continuing with a tone that shifts from earnest concern to confident emphasis, she adds, \"我以前也是经常在网上被人骚扰的。\" After a brief pause where she raises her eyebrows for emphasis, she completes the thought naturally, stating \"后来我发现，起什么用户名很重要。\" The background behind them reveals a wall with a diamond lattice pattern glowing in warm orange light, adding depth to the composition. The music sustains its cheerful, subdued level throughout, never overpowering the primary speaker’s voice, while faint chewing sounds and minimal room tone ground the scene in a controlled, cozy indoor environment.","video_1_relative_path":"videos/539c52c903d7daf6.mp4","video_2_relative_path":"videos/79ae1c01dcc9d4f9.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_3/00000043","text_prompt":"A brightly lit, static medium two-shot captures a comedic domestic confrontation in a warmly illuminated apartment hallway, framed with even lighting and a clean, sitcom-style composition. The left side of the frame features a white shelving unit stocked with books, small potted plants, and colorful figurines, while the right side reveals a pale blue-grey wall, a white door, and a vertical string of yellow photo frames. A young man with neatly styled dark hair stands left-of-center, angled toward a young woman. He wears a color-blocked hoodie with navy shoulders and sleeves, a white chest stripe, and a purple torso, paired with black trousers. His body leans forward, brows furrowed, mouth open mid-shout as he gestures sharply with his right hand. A calm but agitated male Mandarin voice with a northern accent begins, stating \"鱼在马桶的水箱里游着呢，自己去找吧。\"\n\nThe camera remains locked off as the man lowers his hand, then raises it again near his face to emphasize his point, maintaining an intense expression. The woman, positioned on the right with reddish-brown hair swept into an updo and dressed in a bright green cardigan over a white top, initially touches her forehead with her right hand, eyes wide and lips parted in shock, her posture slightly hunched with one arm crossed over her abdomen. As the scene progresses, faint audience laughter begins to swell underneath the dialogue, quickly growing from a murmur into distinct chuckles that establish a clear comedic atmosphere. Her shocked expression deepens before shifting into animated disbelief; she lifts her hand from her face and throws both arms outward, palms up, while a higher-pitched, startled female Mandarin voice …: \"我刚上厕所。\" The man responds by raising his right index finger vertically beside his mouth in a shushing gesture, briefly glancing at her before looking forward again. The audience laughter peaks and sustains at a moderate-loud intensity, underscoring the exaggerated performance and comedic timing, while the steady composition and consistent lighting keep the focus entirely on the sharp, expressive exchange.","video_1_relative_path":"videos/3151ecb7ee72a828.mp4","video_2_relative_path":"videos/bc3eb6669771d97e.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_3/00000051","text_prompt":"Cinematic domestic vignette, shot on a 50mm lens at eye level, bathed in soft, even natural light that highlights a cozy living room palette of cream, beige, and muted blues. The frame opens in a medium close-up on two East Asian adults leaning over the front rail of a blue portable baby playpen. On the left, a woman with shoulder-length brown hair and a pale yellow short-sleeved top rests her chin on her hand, gazing down with a gentle smile. Beside her, a man with short black hair, rectangular glasses, and a white T-shirt bearing bold pink lettering mirrors her posture, gripping the mesh edge with an excited grin. Beneath their quiet anticipation, a sentimental solo piano melody begins, weaving slow arpeggiated chords and soft sustained pads at a gentle tempo, mixed low to underscore the scene without overpowering it. A gentle female Mandarin voice, warm and affectionate, states, “好可爱的小家伙。” A confident male Mandarin voice, upbeat and reassuring, immediately replies, “我就跟你说，肯定没有问题的。”\n\nA hard cut transitions to a wider static shot that fully reveals the domestic setting, maintaining the tender, hopeful mood. The woman is now seated cross-legged inside the playpen, still resting her head on her hand and looking up at the man with a pleased smile. The man stands just outside the playpen’s right side, briefly adjusting a hanging plush white rabbit toy on the arch-shaped mobile before turning toward the camera with an exuberant gesture, both arms lifted and bouncing lightly. A playful male Mandarin voice, triumphant and light, declares, “所以现在我们可以玩游戏机了。” The background deepens the sense of a lived-in home: a cream sofa behind them, a blurred kitchen with white cabinetry and stainless steel appliances, a beige rug underfoot, and to the right, a brick accent wall supporting a small shelf with a black figurine and a hanging blue doll, while a refrigerator covered in magnets and papers is visible through an open doorway. The piano score continues unchanged, its legato phrasing and light synthesized string accompaniment sustaining the emotional warmth until the moment concludes abruptly, leaving only the faint rustle of fabric and soft breaths in the quiet room.","video_1_relative_path":"videos/a01809949abc930d.mp4","video_2_relative_path":"videos/a639865d8650b641.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_3/00000090","text_prompt":"A locked-off medium close-up inside a warmly lit church nave, captured with a shallow depth of field that keeps two women in sharp focus while softly blurring the formally dressed parishioners behind them. Diffused frontal illumination casts a serene yet solemn glow, highlighting the vivid purple-and-teal floral dress and large dark-blue circular earrings of the foreground woman, whose fair skin and blonde shoulder-length waves contrast with the muted creams and browns of the wooden pews and surrounding congregation. She sits composed but faintly tense, jaw set, gaze fixed ahead, as a second woman with light-brown hair pulled back and wearing a pale floral blouse leans in from behind her right shoulder. The whispering woman’s eyes widen and her lips part as she delivers an urgent, breathy confession about the parish’s mounting financial strain, urging quick action before a pressing opportunity slips away. A continuous, low-volume orchestral string pad in a minor key swells beneath the exchange, stripping away all ambient church noise to heighten the intimacy and tension.\n\nThe foreground woman absorbs the plea without turning, her eyelids lowering briefly before lifting again in reluctant acknowledgement. She offers a single, curt reply, stating, \"Roger that,\" her tone calm yet edged with resignation. Immediately after, she resumes speaking aloud in a clear, measured voice that projects quiet authority, enunciating each word with deliberate gravity. A calm, formal female voice declares, \"But by the grace of God and his provision, we will find our footing,\" her diction steady and resonant. As she finishes the sentence, she exhales softly, her shoulders relaxing a fraction as she weighs the implications of her words. The orchestral bed sustains its final chord, holding the frame on her thoughtful expression as the scene fades into quiet contemplation.","video_1_relative_path":"videos/e01834737bdb3dcd.mp4","video_2_relative_path":"videos/05e49346a5b37526.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_4/00000038","text_prompt":"An intimate domestic drama unfolds in a cinematic medium two-shot, framed by warm amber practicals from ornate glass sconces and twin round mirror bulbs that bathe a vintage hair salon in nostalgic pinks, lavenders, and ambers. The shallow depth of field isolates two women seated opposite each other at a cluttered white counter, their symmetrical positioning reinforced by the reflective surfaces behind them. The younger woman, her dark-brown hair set in rollers secured by purple clips and draped in a short-sleeved pink robe trimmed with white lace, initially faces away before pivoting to reveal a stern expression framed by loose curls. Beside her, the older woman, mid-sixties with gray-streaked rollers held by red clips, wears a lavender long-sleeved top beneath a matching pink robe and blue-and-black plaid pants, her bright red nails gripping a thin wooden cuticle stick. Under a soft indoor hum with no musical accompaniment, a calm, slightly defensive older woman speaks, stating, \"I gave you a lot of freedom, you turned out okay.\"\n\nThe younger woman’s posture shifts as she turns fully toward her companion, her voice firming with a sharper, higher pitch as she retorts, \"You didn’t give me freedom.\" The older woman listens, her lips pressed together while her expression tightens, the practical lighting catching the metal ends of the rollers and casting soft highlights on their skin. Maintaining steady eye contact, the younger woman’s tone fractures with hurt and reproach as she adds, \"You were never around.\" The ambient quiet deepens, broken only by their voices, until the older woman finally leans forward a fraction, her eyebrows lifting in measured incredulity as she replies, \"Is that so?\" The camera remains static, preserving the symmetrical standoff and the rich color palette that evokes retro domestic comfort against the backdrop of unresolved interpersonal tension, leaving the scene suspended on the weight of micro-expressions and unspoken history.","video_1_relative_path":"videos/3eafb7f8bf0171f8.mp4","video_2_relative_path":"videos/18181fed4e46b081.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_5/00000010","text_prompt":"A historical drama scene unfolds in a single continuous take, captured with an eye-level medium-long lens that frames the composition through the blurred edge of a dark wooden pillar on the left, suggesting a sense of covert observation. Diffuse, overcast daylight bathes a stone-paved courtyard in soft, even illumination, casting gentle shadows and emphasizing a muted palette of greys, teals, and blacks, punctuated by the subtle gold accents on one man’s belt. Two figures walk slowly from right to left across the frame, anchored by a tall grey-stone wall bearing an intricate relief of intertwined vines and birds, with a heavy, metal-studded wooden gate visible to the left. The man on the left, dressed in a teal-green robe with a darker sash and his hair gathered in a topknot, moves with palpable tension. He reaches out, gripping the upper arm of his companion, and a tense, anxious male voice in Standard Mandarin begins, pleading with a hurried tempo: “这实在不行啊，我还有些私房银子，我都拿出来给您。” The soft rustling of their robes and a distant, indistinct outdoor hush fill the quiet courtyard as they continue their measured pace.\n\nAs the pair slows to a halt, the second man, clad in a deep navy-black robe fastened with a gold-patterned belt and an ornate hairpin, turns slightly toward his companion. His posture remains composed and dignified, though his brow lifts in mild surprise at the earnest plea. A calm, authoritative male voice responds with a steady questioning tone: “你舍得？” The first man’s hand lingers on his sleeve, underscoring the desperation of his request. The camera holds its fixed position, allowing the restrained blocking and sparse ambient sound design to keep the focus entirely on the nuanced exchange, while the soft contrast and historical costuming reinforce the late imperial Chinese setting.","video_1_relative_path":"videos/f58c1ac1202bf987.mp4","video_2_relative_path":"videos/375a95ed29e7a958.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_5/00000032","text_prompt":"A cinematic historical drama, captured in a locked-off wide shot with a tableau composition, bathed in strong diagonal shafts of natural light that cut through drifting dust and smoke to illuminate a dim, rustic interior. The space features rough wooden beams, hanging cloth banners, and sparse furnishings, evoking a modest traditional study. In the right foreground, a young man with dark hair tied in a topknot and adorned with a silver ornament sits at a long table draped in dark cloth, his layered pale blue-white robes catching the ambient glow. Before him rests a Go board, flanked by a flickering yellow candle, wooden bowls of black and white stones, and a small teapot with stacked cups. Behind him, two quietly observing figures in red-and-white and white-and-blue attire stand near an open doorway, while a young woman in a flowing yellow-gold robe with a red-and-black sash steps forward, her bright timbre cutting through the soft room tone as she calls out, \"三哥，陪你下棋。\"\n\nShe glides toward the table, her skirt swirling, and lowers herself gracefully into the chair opposite him. With a quick, teasing flourish, she lifts a black stone between her thumb and forefinger, grinning broadly as she delivers a playful challenge: \"接招！\" The man remains intent on the game, turning his head slightly to acknowledge her before responding in a calm, firm baritone, \"看我的。\" He extends his right hand, palm up, ready to receive the stone or make his own counter-move. The camera remains perfectly still, allowing the dramatic contrast between light and shadow to frame their warm, sibling-like rapport. The atmosphere stays hushed, anchored only by the faint rustle of fabric, the low indoor hum, and the gentle wavering of the candle flame, emphasizing the intimacy and quiet tension of their friendly competition.","video_1_relative_path":"videos/2aab6beec1c2d7b2.mp4","video_2_relative_path":"videos/c683912326fed5c3.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_5/00000095","text_prompt":"Cinematic wide shot, 35mm lens, warm sepia palette: a sun-drenched desert landscape of pale beige hills and an empty asphalt road curving into the distance opens under a single, harsh sun source positioned high and to the right, casting pronounced chiaroscuro and bathing the scene in desaturated golds and muted blues. A low-angle, handheld camera peers past the rear quarter of a dusty silver sedan parked on the shoulder, where the back and waist of a uniformed police officer dominate the extreme foreground. His dark navy-blue jacket and cap brim catch the strong golden backlight, creating deep silhouettes and long shadows across the arid isolation. Near the car’s trunk, a middle-aged suspect in a charcoal suit jacket and light shirt crouches with his head bowed, his face streaked with dried blood around the nose and cheek while fresh crimson stains run down his neck. The hushed ambience is broken by the officer’s calm but firm voice, a clear male Mandarin tone delivering steady authority: “No, the law demands evidence.”\n\nThe injured man exhales audibly, rises to his feet, and leans against the vehicle for support as the officer steps forward, placing a gloved hand on his shoulder to steady him. The camera tilts up slightly, catching the glint of silver hardware on the officer’s uniform and the harsh sunlight flaring across the lens, emphasizing the heat and solitude. Framed in a medium close-up against the barren hills, the two men stand side by side in tense silence. The officer maintains a measured posture, looking down with a serious expression, while the suspect lifts his weary, half-lidded gaze, his jaw slack with pain. Occasional metallic clicks from shifting handcuffs and the soft rustle of fabric mingle with the suspect’s heavy breathing and the distant whisper of desert wind, reinforcing the gravity of the confrontation as the scene settles into a quiet, sun-baked stillness.","video_1_relative_path":"videos/9a1cb96f19e48b8f.mp4","video_2_relative_path":"videos/dcb6d8b90eddf7af.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_5/00000102","text_prompt":"Warm morning light streams from camera-left into a spacious, sun-drenched dance studio, casting long diagonal shadows across a polished wooden floor and catching a soft haze of floating dust motes. A large wall mirror dominates the background, reflecting ballet barres, a blackboard with faint chalk scrawls, and triangular pennant banners. In the foreground, a young female student in a pale yellow cardigan over a red-and-white plaid shirt sits on the floor with her back to the camera, her dark hair tied neatly. Facing her, an older female teacher in her forties sits cross-legged near the mirror, her dark hair secured in a tight bun with two slim white sticks, wearing a lavender leotard beneath a loose black-and-white patterned robe. The atmosphere is calm and expectant, filled only with a low room tone and distant, indistinct movement. As the teacher’s eyes slowly open and she turns toward the student, the young woman leans forward and greets her clearly in standard Mandarin, “熊老师好。” The teacher responds immediately with a warm smile and a friendly, “哎，你们好。”\n\nA single, slow dolly push-in gradually tightens the frame, isolating the teacher’s expressive face while softening the student in the foreground. The teacher nods gently, her tone shifting to a gentle yet authoritative directive as she says, “我们上课了，先坐啊,” inviting the class to settle. As she finishes speaking, she lifts herself from the floor, the hem of her robe swaying to reveal a hint of pink underneath. Through the mirror behind them, several figures in light-colored practice clothes jog past, and more students drift in and out of view, their silhouettes blurred by the hazy backlight. The muted earth-tone palette of lavender, pale yellow, and wood brown is punctuated by the monochrome pattern of the teacher’s robe, all rendered with high contrast and a nostalgic, painterly quality. With no music playing, the sound design remains intimate, focusing entirely on the crisp Mandarin dialogue and natural room ambience as the teacher rises, leaving the scene poised on the brink of the lesson beginning.","video_1_relative_path":"videos/e2555d74815f988f.mp4","video_2_relative_path":"videos/12db30f7c9b28b0b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_6/00000066","text_prompt":"A sitcom-style backstage studio scene opens in a locked-off medium two-shot at eye level, framed in a cool-neutral palette of grays and blues under even front-left key lighting. Shallow depth of field keeps the two subjects sharp while softly blurring a background featuring black flight cases, a metal stool, and a tall vertical banner displaying a blue-toned suited figure with an outstretched hand and bilingual title text. A young fan in a white T-shirt with blue trim and a cartoon graphic bursts into frame from the left, leaning forward with both hands raised and palms open. Speaking with a bright, breathy, and eager Henan-accented Mandarin, he exclaims, \"不，俺是你的粉丝啊。\" as a brief ripple of off-screen audience laughter underscores the comedic tone. Still gesturing energetically, he takes a half-pace closer, his expression a mix of excitement and pleading as he adds, \"你给俺签个名吧。\" The audience chuckles again, matching the lighthearted mood.\n\nThe celebrity, dressed in a light-gray button-down shirt beneath a black vest with short styled hair and a silver watch, listens with a polite, relaxed smile, his shoulders squared and eyes fixed on the fan. As the fan extends a small dark notebook or phone toward him, the celebrity nods, lowers his gaze, and shifts his weight onto his left foot, tilting his torso forward to prepare. In a calm, friendly baritone, he replies, \"好啊。\" The camera executes a hard cut to a tighter close-up on the celebrity’s upper body and face, cropping out the fan and most of the banner. He brings the pen attached to his chain down over the offered item just outside the lower frame, murmuring, \"啊。\" as he completes the motion. The scene ends mid-action with low ambient room tone and no music, preserving the humorous, sitcom-style staging through the contrast between the fan’s exaggerated enthusiasm and the celebrity’s composed acceptance.","video_1_relative_path":"videos/41811ec687e78599.mp4","video_2_relative_path":"videos/376686ab65c65f8f.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_7/00000016","text_prompt":"A cinematic medium two-shot, eye-level and static, frames a warmly lit, wood-paneled study bathed in soft front-left key light and gentle opposite fill, establishing a warm color palette of rich browns and deep reds. On the left stands a young East-Asian man in a grey plaid suit jacket, crisp white shirt, and red-and-black diagonal-striped tie, his posture slightly hunched with hands loosely clasped near his abdomen. Opposite him, a lively young female Mandarin voice begins, stating “等会儿再喝。” as the woman in a sleeveless deep-red top and matching skirt lifts her right hand, palm inward, making a small outward gesture toward him while holding direct eye contact. The man listens attentively, brows faintly raised and lips parted in silence, before her delivery quickens slightly as she explains, “我领导对他的那个项目不是很满意,” sweeping her hand downward and arcing it outward to emphasize her point, prompting his eyebrows to draw together and his head to tilt fractionally in mild surprise.\n\nShe presses on with a decisive open-palm motion, flicking her wrist as if passing an object, and delivers “所以我就做个顺水人情了，还给你了。” in a tone blending casualness with subtle self-satisfaction before dropping her hand and relaxing her stance. The moment her sentence concludes, a burst of studio-style audience laughter fills the sonic space, lingering for a second before fading naturally into the quiet room ambience. The man’s expression instantly brightens into a broad, good-natured smile as he glances upward and to his left, his shoulders easing back in relief, while the woman mirrors the shift with a modest, confident grin. The scene closes on this comedic payoff, the warm, textured backdrop of antique desk lamps, candlestick holders, and framed maps holding steady as the laughter dissolves and the static frame lingers on their shared moment of lighthearted resolution.","video_1_relative_path":"videos/be6c064462331742.mp4","video_2_relative_path":"videos/902f7695aaf85afe.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_7/00000040","text_prompt":"A contemporary domestic drama unfolds in a static medium-wide two-shot, framed to emphasize relational tension against a backdrop of vivid turquoise-green tiles and neutral furnishings. Warm under-cabinet practicals bathe the scene in a cozy glow, contrasting with the cool daylight filtering through closed blinds, while a faint room-tone hum establishes the quiet atmosphere. Seated side-by-side at a white dining table, a young woman in a pale-yellow fleece hoodie rests her head on her right hand, her eyes half-closed and brow furrowed in quiet fatigue. Beside her, a young man in a white graphic T-shirt studies an open notebook, pen in hand, his posture relaxed but his expression gradually tightening as he processes the papers before him.\n\nThe man glances up from his notes, his eyebrows raising in disbelief as he asks in a clear, mid-range Mandarin voice: “这个什么？你还有钱被冻结吗？” The woman lifts her head, her eyes widening in sudden frustration, and replies in a higher-pitched, defensive Mandarin tone: “我是个孕妇，我怎么会记得？” She thrusts her left hand outward in a dismissive gesture, then leans back against the chair, her irritation palpable. The man turns fully toward her, lips parted as if to counter, but before he can speak he releases a short, weary sigh, murmuring in a low, exhausted Mandarin voice: “唉。” The moment settles on their tense expressions, the dual-source lighting casting gentle highlights and subtle rim light across their faces, leaving the cluttered yet homely backdrop of scattered papers, mugs, and a toy robot suspended in quiet domestic stress.","video_1_relative_path":"videos/6338879c6c8aee2f.mp4","video_2_relative_path":"videos/8b6ea0c1516f73b8.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_7/00000069","text_prompt":"A grounded, single-camera sitcom scene unfolds in a sunlit apartment kitchen that doubles as a living space, captured on a standard 35mm lens with consistent warm household lighting that highlights wooden cabinetry, a vibrant green square-tile backsplash, and stainless-steel appliances. A large whiteboard dominates the wall, densely covered in multicolored physics and mathematics equations, including probability ratios, wave functions, and circuit matrices. Near the island counter stand two men, each gripping an identical bottle of amber liquid. On the left, a bespectacled man in a maroon jacket over a green hoodie and brown trousers stands tense, his brows knit and lips pursed. He turns slightly toward his companion, his voice firm and defensive as he states, \"I’m not going to engage in hypotheticals here.\" On the right, a taller, clean-shaven man in a grey \"WIZARD\" graphic tee layered over striped long sleeves and plaid pajama pants listens intently, his posture relaxed but attentive.\n\nAs he speaks, the man in the maroon jacket pivots leftward, stepping away from the counter toward the living-room side while gesturing with his free hand. The camera executes a smooth, continuous pan to follow his movement, keeping both characters framed against the backdrop of a beige sofa with blue cushions, a low coffee table, and a doorway where soft daylight filters through blinds. He pauses, clutching his bottle, and delivers a short, earnest reply with a slight sigh, adding, \"I’m just trying to be a good neighbor.\" The wizard-shirted man shifts his weight, holding his bottle with both hands at waist height, and responds with a calm, mildly sarcastic edge, \"Oh, of course.\" The shot settles into a static composition across the island as the first man lowers his arm, and the second man offers a faint nod before answering in a measured, conciliatory tone. The scene relies on minimal ambient sound, letting the crisp, naturalistic dialogue carry the observational, everyday tension of the moment.","video_1_relative_path":"videos/a2c9c563dcdc9c0c.mp4","video_2_relative_path":"videos/bed80842c39cd3b1.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_7/00000082","text_prompt":"A warmly lit restaurant interior unfolds in a locked-off widescreen medium two-shot, the camera remaining perfectly still to capture an intimate conversational moment. The scene is bathed in soft, naturalistic light that casts gentle shadows, highlighting the earthy reds and browns of the décor while contrasting with the cool blues, pinks, and turquoise tones of the subjects’ attire. In the foreground, a neatly set table draped in a white cloth and green placemats holds a plate of salad and polished glassware. Seated on the left, a dark-haired man wearing black-rimmed glasses and a vertically striped button-down shirt leans forward slightly, a silver wristwatch gleaming on his left wrist as he holds a fork over his meal. Across from him, a blonde woman in a light-green cardigan patterned with purple-blue feather motifs over a turquoise top listens attentively, her right arm resting near her lap. The background remains softly defocused, revealing a distant diner in a royal-blue shirt and abstract artwork featuring red peppers against a reddish-brown wall. The atmosphere is hushed and diegetic, stripped of background chatter or clinking cutlery, leaving only the man’s clear, mid-range voice to fill the space. With measured curiosity and mildly animated inflections, he gestures outward, first raising his right hand palm up and then extending both hands as he poses a rhetorical question. “Is that one thirty-six hour experience, or is that thirty-six hours spread out over, say, one glorious summer?” he asks, his eyebrows lifting for emphasis before his hands return to the tabletop, fingers lightly brushing the plate’s edge. The woman maintains steady eye contact, offering a faint nod and a subtle smile as she tilts her head, her attentive posture and minimal reactions conveying quiet engagement. The shot holds steady on this suspended exchange, the warm lighting and deliberate blocking preserving the scene’s thoughtful, conversational rhythm until the frame naturally concludes.","video_1_relative_path":"videos/ab980a487a87d37b.mp4","video_2_relative_path":"videos/72510dfabf3f126a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_7/00000091","text_prompt":"Open on a brightly lit, homey kitchen set rendered in warm wood tones and a light green tile backsplash, captured in a single locked-off medium shot at eye level. The scene is bathed in even, soft key lighting typical of a multi-camera sitcom, with a moderate depth of field that keeps the three characters sharply focused while the background cabinets and appliances dissolve into a gentle blur. At the left, a man in a tan jacket with a maroon-lined hood bends forward over a wooden table laden with food, busy arranging dishes. In the center, Howard Wolowitz, identifiable by his bowl-cut hair and a light-grey button-down worn open over a blue-and-white striped turtleneck, holds a clear plastic bottle of dark liquid and begins to speak. To his right, Beverly Hofstadter stands in a black cardigan over a blouse patterned with bold green-and-black circles, her gaze fixed downward as she adjusts plates and utensils. A brief ripple of studio audience laughter establishes the familiar sitcom atmosphere, followed by the clean hum of subtle room tone.\n\nHoward Wolowitz, speaking in a standard American accent with a conversational yet emphatic tone that blends mild apology with playful admiration, states, \"Excuse me for being so bold, but I see where Sheldon gets his smoldering good looks.\" As he delivers the line, his prosody rises slightly on the word bold and falls gently on looks, pausing just after the punchline lands to let the comedic moment hang in the air. Beverly glances up briefly before returning her attention to the food, while the man in the tan jacket straightens slightly but remains facing the table. The camera holds its static position without a cut or pan, leaving the warm domestic tableau frozen in a beat of lighthearted suspense, underscored only by Howard’s voice and the faint ambient kitchen sounds.","video_1_relative_path":"videos/e01604272a91e1fb.mp4","video_2_relative_path":"videos/91980d13f9670366.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_8/00000030","text_prompt":"A locked-off medium-wide shot captures a modest living room bathed in soft daylight filtering through floral sheer curtains. Warm earth tones dominate the space, with beige walls and brown wood flooring grounding the composition, while a light-colored sofa with a dark patterned throw anchors the left foreground. Beside it, a wooden bookshelf and standing lamp frame the edge, and a small drum kit rests near a red armchair holding a white-covered book on the right. An older man in a pale vertically-striped button-down shirt and dark trousers stands quietly by the window, watching as a younger man in a bright yellow zip-up jacket, black T-shirt, loose dark pants, and a striped beanie begins to speak. Delivering his lines in a relaxed, conversational tone with a mild North-American accent, the younger man gestures casually and says, “You know, there’s like a Starbucks on every corner?” As he finishes the thought, his soft footsteps echo faintly against the hard floor before he lowers himself onto the sofa, shifting the cushions to settle in.\n\nStill seated, the younger man leans back slightly, lifts one hand in an explanatory gesture, and continues in a steady, matter-of-fact delivery, “Krazy-8 is, like, the dude that sells Starbucks his beans.” The camera remains completely still, preserving the balanced framing and allowing the subtle interplay of body language and room details to carry the scene. Natural side-lighting from the window casts gentle highlights and soft shadows across their faces, reinforcing the subdued, realistic atmosphere. With no music or pronounced ambience beyond a faint indoor room tone, the audio design prioritizes dialogue clarity, emphasizing the quiet comedic tension of the exchange as the older man remains motionless by the window, observing without a word.","video_1_relative_path":"videos/99bcf7e3af6e9ed7.mp4","video_2_relative_path":"videos/7d3a45b527104ff0.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_8/00000033","text_prompt":"A static medium shot captures a tense, sun-drenched suburban confrontation framed by a tall metal gate and dense foliage, with a white single-story house and red-tiled roof softly blurred in the background. Harsh midday sunlight cuts through the scene, casting sharp highlights on vivid yellow and patterned clothing while plunging deep shadows beneath the subjects’ chins and hats. The color palette leans warm, contrasting the lush greens and neutral grays of the environment against the hostile exchange. On the right, an aggressive man in his late thirties wearing a black beanie with a red brim, a bright yellow T-shirt, and an unzipped black-and-white patterned hoodie stands face-to-face with his counterpart. He thrusts his right arm upward and shouts with loud, mocking contempt: “Oh, well, heil Hitler, bitch.” Without breaking stride, he leans in closer, his face flushed and voice rising in emphatic taunt as he declares: “And let me tell you something else.” The camera holds steady, keeping both figures sharp in the frame as the confrontation escalates. The aggressor plants his left hand on the other man’s shoulder and chest, shoving him downward until the victim—a man in his late thirties with medium brown hair, glasses, and a light yellow-and-white vertically striped button-down—compresses defensively, his shoulders rising and head dipping low as a short, strained grunt escapes him. The aggressor’s right fist clenches near his torso, his voice barking through a slight rasp: “We flipped a coin, okay?” He releases his grip but maintains a threatening posture, looming over the bowed figure who remains motionless save for slight tremors. The ambient soundscape stays quiet, leaving only the heavy weight of the dialogue and the stark visual contrast to underscore the raw power imbalance as the scene holds its final, unbroken frame.","video_1_relative_path":"videos/d5b6d1c89630167a.mp4","video_2_relative_path":"videos/e943004bef77b804.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_8/00000051","text_prompt":"A cinematic widescreen scene, 16:9 aspect ratio, captured in a static eye-level medium-wide shot that holds as a single continuous take. The environment is a quiet suburban backyard at dusk, bathed in the soft, fading light of late afternoon that casts gentle shadows across a subdued palette of beiges, muted greens, and calm blues. A rectangular swimming pool filled with still, light-blue water occupies the left side of the frame, its surface mirroring the overcast sky, while behind it stands a beige stucco house with a brown-tiled roof, a lattice-covered patio, and dark outdoor furniture. Two men face each other beside the pool. On the right, an older man in his late forties wears an olive-green button-down shirt, khaki trousers, and brown shoes; his thin mustache, receding hairline, and serious expression convey quiet authority as he stands motionless with his hands loosely clasped, listening intently. On the left, a younger man in his late twenties is seen mostly from behind and in profile, dressed in a black hooded jacket adorned with bold white-and-red abstract graphics and light cargo pants. Faint crickets chirp in the quiet evening air as he shifts his weight, his posture hesitant and deferential.\n\nThe younger man breaks the silence with a mid-range, slightly nasal voice that carries a nervous, earnest tone, punctuated by thoughtful pauses. He begins, “Anyway, that’s why I wanted to tell you how much everybody really digs what we do,” his eyes flicking toward the older man as he seeks reassurance. The older man remains perfectly still, his lips pressed together and brow faintly furrowed, absorbing the words without breaking his watchful gaze. The camera holds the frame as the quiet evening continues, the calm suburban backdrop contrasting sharply with the weight of the unfinished exchange, leaving the atmosphere heavy with anticipation and unspoken tension.","video_1_relative_path":"videos/d0d639298f5b52bc.mp4","video_2_relative_path":"videos/b29228fea69bbf8e.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_9/00000021","text_prompt":"Cinematic drama, static eye-level medium shot, warm late-afternoon sunlight and a muted domestic palette set the scene inside a modest kitchen featuring off-white cabinetry, a stainless sink, and a cluttered countertop. The unbroken single take keeps the camera fixed, letting natural side-lighting sculpt the faces of two men standing across the counter. On the left, a light-skinned man in his late twenties or early thirties with slightly tousled dark hair wears a black jacket accented with cream panels and thin white piping. A frustrated, mid-to-high pitched General American male voice begins, stating \"My conjecture isn’t helping.\" The tone sharpens as he leans forward a fraction, eyes narrowing, and a strained male voice continues: \"Fine. Okay, fine. Facts then. Fact A.\" He punctuates the declaration by stabbing the air with his index finger, his expression intense, brows knitted, mouth set in a hard line.\n\nOpposite him stands an older, balding man in his late fifties or early sixties, wearing glasses and a muted brown-and-gray plaid shirt, his neatly trimmed gray goatee catching the soft shadows. He listens with lips pressed together, body angled toward the younger man, his calm, lower-pitched presence a quiet counterpoint to the escalating tension. As the younger man presses on, voice louder and clipped, the older man’s posture stiffens; he raises his right hand, palm outward, as though preparing to interject, yet he remains silent, his head tilting minutely in reluctant attention. A rapid, exasperated male voice rises in volume: \"My phone rang like eight times last night.\" The scene holds this charged standoff, the only sounds being the two male voices against a faint indoor room tone, leaving the conversation unresolved and the broader stakes of their dispute hanging in the sunlit air.","video_1_relative_path":"videos/fe9cbba97dd4c498.mp4","video_2_relative_path":"videos/c65c321c4e13305d.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/multitalker/multitalker_9/00000023","text_prompt":"Cinematic medium shot, warm low-key lighting, earth-tone palette: the scene opens in a softly lit dining-kitchen where a steady frame captures a quiet domestic moment. A blonde woman with shoulder-length hair sits at a dark wooden table, wearing a beige long-sleeved top with a white lace-edged scoop neck and a pale cardigan draped over her shoulders. A plain white ceramic mug rests before her as she looks slightly upward and to her right, her posture conveying thoughtful inquiry. Behind her near a doorway stands a bald man in a rust-orange striped button-down and light khaki trousers, his hands loosely clasped and his expression quietly attentive. The background reveals a refrigerator adorned with small photos and magnets, a woven chair, and softly focused kitchen shelving, all rendered in a cohesive, homely atmosphere that emphasizes intimacy without distraction.\n\nThe woman raises her right hand in a gentle, open-palmed gesture, her brow lifting slightly as a soft, slightly hesitant American female voice begins, stating, \"I mean, couldn't that be important?\" Her tone is tentative yet earnest, hanging in the faint room tone that fills the space. The man remains perfectly still, his silence and fixed stance suggesting restrained contemplation or deference, allowing the conversational weight to linger without interruption. The camera holds steady without movement or cut, leaving the soft acoustic hush and the unspoken gravity of the question to settle into the warm, directional lighting as the scene rests in quiet stillness.","video_1_relative_path":"videos/16ab8dc411cc4db3.mp4","video_2_relative_path":"videos/047a0624fd10b22b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/multitalker/multitalker_9/00000101","text_prompt":"A quiet domestic scene unfolds in a modest, softly lit residential hallway with light gray walls and warm wood trim, captured in a locked-off medium-wide shot. An older man in a gray cardigan, white shirt, dark trousers, and a teal apron stands near the front entrance holding a brown cloth, while a young police officer in a dark blue uniform with silver buttons and a peaked cap stands opposite him, hands clasped behind his back. A wooden door with a frosted glass panel sits to the left, and a coat rack with a small cabinet occupies the right side of the frame. The older man turns slightly toward the officer and speaks in a calm, conversational Mandarin voice, stating \"有人找你。\" He then gestures with his free hand toward the interior of the apartment and adds, \"坐，我刷碗去。\" As he finishes, he pivots left and walks out of frame, his soft footsteps and a faint fabric rustle echoing on the hard floor.\n\nWith the hallway quiet, the officer remains by the doorway, offering a polite smile. From the unseen interior space, the older man calls back, asking \"谁呀？\" The officer answers immediately in a relaxed tone, replying \"我。\" The camera begins a gentle push-in, transitioning to a looser medium close-up that centers the officer against the open doorway. Through the opening, a warmly lit bedroom comes into view, where a figure in a red long-sleeved top and jeans crosses the frame briefly. As the officer steps forward, he addresses someone just outside the current viewpoint in a cordial, slightly nostalgic Mandarin voice, stating \"有段日子没见你了，挺想你的。\" A soft exhalation precedes the line, and the scene closes on the faint residual room tone and subtle doorframe creak, leaving only the quiet intimacy of the domestic space.","video_1_relative_path":"videos/e3e770297f966159.mp4","video_2_relative_path":"videos/6be9539026d0f599.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/music/music_1/00000008","text_prompt":"Cinematic live concert footage, shot on a wide lens with a high-angle perspective, opens inside a grand venue bathed in deep blue and purple stage lighting. White spotlights sweep across the densely packed audience, casting moving circular patterns across ornate wall moldings and hanging lighting rigs. On a low stage to the right, three male musicians perform in casual attire: two seated guitarists in light-colored shirts strum in unison while a third stands slightly behind near a keyboard setup in darker clothing. The camera executes a slow, seamless upward and leftward pan, gradually revealing an elevated balcony and the swaying crowd below. Audience members are fully immersed, many raising smartphones to capture the moment, their rhythmic claps and gentle movements syncing with the performance. The entire sequence unfolds as a single, uninterrupted take, maintaining a steady vantage point that emphasizes both the scale of the room and the intimate focus on the stage.\n\nThe soundscape is a clean, professionally balanced live rock recording drenched in natural hall reverb. A moderate-tempo drum groove anchors the track, driving forward with a steady kick and snare pattern while a subtle hi-hat keeps time. Dual electric guitars weave together, one laying down centered power chords and the other adding slightly panned arpeggiated melodies, all supported by a warm, overdriven bass line. A male tenor vocalist delivers an emotive, mid-range performance with expressive phrasing that swells through the chorus. He sings with clear, emotional weight about departure and regret, his voice carrying the lyrics, \"...she’s walking away... she knows it’s too late... she’s walking all night...\" The mix remains reverberant and immersive, with the audience’s synchronized clapping and faint ambient rustling blending seamlessly into the track, creating a cohesive and emotionally resonant musical moment.","video_1_relative_path":"videos/f6055ed03ef9913c.mp4","video_2_relative_path":"videos/489d872a49c7083c.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/music/music_1/00000022","text_prompt":"Cinematic street performance, captured on a 35mm lens under bright daylight with a warm, sun-drenched palette. The scene opens on a sunlit outdoor pedestrian plaza paved in light gray stone, framed from a medium distance with a slight upward angle that centers two young musicians against a backdrop of palm trees and polished retail storefronts. On the left, a boy with shoulder-length wavy blond hair, dressed in an oversized pink T-shirt and loose blue jeans, stands before a black microphone stand, his fingers moving in steady fingerpicked arpeggios across a light-colored acoustic guitar. To his right, a girl with long brown hair in a short-sleeved white dress patterned with small red flowers and white sneakers holds a violin vertically at her side, bow resting loosely in her hand, occasionally shifting her weight as she listens. Behind them, a relaxed crowd of casually dressed pedestrians gathers, some leaning forward with arms crossed, others pausing mid-stride, while a red Nord Stage keyboard, a compact amplifier, and coiled black cables rest near the performers’ feet. A gray stroller with a sleeping infant sits nearby, attended by a small boy in a tan shirt, and a bright green neon URBAN OUTFITTERS sign glows steadily above a store entrance, anchoring the scene in a lively commercial district.\n\nThe audio landscape opens with the crisp, resonant attack of the guitar’s open strings, establishing a gentle folk-pop groove at a steady seventy-two beats per minute in a warm major key. The guitarist begins to sing into the microphone, his voice soft, melodic, and slightly breathy, delivering a legato melody with natural phrasing that blends seamlessly with the sparse harmonic foundation. The open-air acoustics carry minimal reverb, keeping the vocal and instrumental tones clear and intimate against a low-frequency urban hum and the faint, diffuse murmur of the passing crowd. Occasional foley details—a subtle foot tap syncing with the rhythm, the soft brush of a cable as the performer shifts—ground the performance in reality, while the absence of traffic noise or interruptions preserves the authentic, communal atmosphere of a quiet afternoon busking session.","video_1_relative_path":"videos/7e4569310142f3bc.mp4","video_2_relative_path":"videos/6176f920a0646304.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/music/music_1/00000087","text_prompt":"Cinematic medium shot, soft overcast daylight, muted natural palette. A young woman sits cross-legged on wide, light-gray stone steps outside an ornate building with tall pillars and carved wooden doors. She has long dark hair and wears a white short-sleeved top, denim shorts, and brown knee-high boots, positioned slightly right of center. A black microphone on a stand is angled toward her mouth as she holds a natural-finish acoustic guitar with a capo clamped on the second fret. The camera begins at a slight low angle and executes a slow, deliberate pan to the left, gradually widening the frame to reveal more of the stone facade and tiled pavement while keeping her as the unwavering focal point.\n\nShe strums the instrument rhythmically, her body swaying subtly in time with the music as she sings with expressive, emotive gestures, occasionally closing her eyes or offering a brief, warm smile. Her clear, mid-range female voice delivers the gentle lyrics, \"Into the light, into the dark black night,\" perfectly synchronized with the warm, fingerpicked acoustic guitar playing at a steady seventy-two beats per minute in a simple major-key progression. The audio environment is acoustically isolated and pristine, completely devoid of wind, traffic, or crowd noise, allowing only the intimate resonance of her voice, the natural ring of the final chord, and the faintest breaths between phrases to fill the space. The overall mood is calm, reflective, and deeply personal, capturing an authentic moment of live musical expression against a classical architectural backdrop.","video_1_relative_path":"videos/beb5ff62021b7493.mp4","video_2_relative_path":"videos/96fd94262578fbf6.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/music/music_2/00000002","text_prompt":"Cinematic concert performance, 50mm lens, shallow depth of field, cool palette of deep purple and electric blue, opens on a steady, subtly handheld close-up of a solo female vocalist positioned center frame against a dynamic LED wall composed of a grid of pulsing circular lights. She has shoulder-length wavy blonde hair with bangs, dramatic winged eyeliner, and dark lipstick, wearing a long-sleeved black top densely embroidered with silver sequins that catch the stage lighting. The camera holds at eye level, tracking her subtle head movements and emotive expressions as her eyes close and her brow gently furrows. As the framing naturally widens to a medium shot, her left hand rises to rest over her heart while her right hand maintains a firm grip on a black handheld microphone near her chest.\n\nShe delivers the phrase “always with me” in a clear, mid-to-high register with legato phrasing and a touch of vibrato, perfectly synced to her lip movements. The soundscape is built entirely around her voice and a slow-tempo, percussion-free ambient pop arrangement, where layered synthesizer pads sustain a gentle crescendo and a large-hall reverb tail creates a spacious, ethereal atmosphere. Faint fabric rustles and audible breaths punctuate the performance as she sways with each inhalation and release. The LED backdrop intensifies its brightness in rhythm with her delivery before the scene concludes abruptly mid-phrase, leaving the shimmering visual and reverberant vocal hanging in the quiet space.","video_1_relative_path":"videos/614855f47e2b539e.mp4","video_2_relative_path":"videos/16941ec9f6a7caad.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/music/music_2/00000007","text_prompt":"A cinematic medium close-up, captured on a static camera, frames a male performer centered against a warm, textured orange-red backdrop, illuminated by soft directional lighting that sculpts his face while gently blurring the background. He has shoulder-length dark wavy hair, a full beard and mustache, and wears a tan leather jacket over a light collared shirt with a black scarf draped around his neck. A large ornate silver ring sits on his right index finger, and a gold ring rests on his left ring finger as he grips a vintage-style silver microphone with a blue band near the grille in his left hand. His right hand hovers near his right ear, fingers lightly adjusting an out-of-frame earpiece. His expression remains intensely focused—eyes mostly closed, brow furrowed—as he delivers the song with visible vocal effort. The audio is driven by an energetic pop-rock arrangement featuring a steady drumbeat, melodic bassline, layered electric guitars, and bright keyboard pads, all rendered with a tight studio reverb and consistent dynamics. An emotionally charged Norwegian vocal enters immediately, clear and articulate with moderate vibrato, perfectly synced to the driving instrumentation as he sings, \"…og tiden er forbi, nå er det på tide å gå videre.\"","video_1_relative_path":"videos/735e96fe3761b27c.mp4","video_2_relative_path":"videos/0646a09ca392efb4.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/music/music_2/00000051","text_prompt":"A visceral live concert captured through an intimate, handheld audience lens, the frame opens on a female performer standing center stage against an expansive LED backdrop glowing in saturated magenta. She has long, wavy brown hair and wears a white cropped T-shirt paired with lavender pants featuring a glittering sequined waistband, gripping a silver microphone in her right hand. The camera shakes subtly, occasionally framed by the dark silhouette of a spectator’s shoulder on the left, grounding the shot in the raw energy of a packed arena. She tilts her head back, delivering the opening vocal phrase with intense focus as loud, reverberant synth-pop fills the space, driven by pulsating electronic drums, a deep bassline, and layered synthesizer melodies.\n\nThe digital scenery smoothly transitions from magenta to deep purple and violet hues as she pivots stage left, sweeping her free left arm outward before drawing it back to her chest. The handheld camera pans to follow her movement, keeping her upper body and the shifting colored lights prominent. As the track builds, she raises her left arm high into the air, pointing upward while turning her torso away from the lens, momentarily catching a distinct red laser dot that flashes across her midsection. The background screen erupts into swirling vertical patterns of violet and blue, mirroring the audio’s crescendo where the driving beat peaks and the crowd’s volume swells into a thunderous, harmonized roar that blurs the line between performer and audience.\n\nThe sequence concludes with her holding that elevated pose, bathed in the vibrant violet stage lighting while the arena’s natural reverb and low-frequency PA hum sustain the immersive atmosphere. The high-energy mix remains wide and dynamic, with the lead vocal cutting clearly through the dense instrumental bed and the collective singing of thousands of spectators echoing through the vast venue. The rhythmic pulse of the music and the massed vocal texture carry the scene forward without fading, capturing the unbroken, euphoric thrill of a major live performance until the frame cuts.","video_1_relative_path":"videos/2feca4116051f1b2.mp4","video_2_relative_path":"videos/c4e653c6ab75cf74.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_1/00000034","text_prompt":"Cinematic outdoor scene, fixed high-angle camera looking down onto a patch of grass and dirt bordering a light-gray concrete curb, bathed in bright natural daylight that casts soft, realistic shadows. Dense green foliage anchors the left side of the frame while dry leaves, twigs, and small stones scatter across the ground. A lone dark-skinned man, wearing a dark short-sleeved T-shirt, light gray shorts, and dark footwear, stands amid the vegetation gripping a long-handled tool with a red blade. He begins a steady rhythm of manual clearance, raising the implement overhead and driving it down in quick, forceful arcs toward the base of the plants. Each strike produces a sharp, percussive thwack as the blade meets stems, accompanied by the crisp rustle of severed foliage and the faint scuff of his shoes adjusting on the gravel.\n\nAfter a few deliberate swings, he pauses, shifts his weight, and turns his head slightly to the right toward the camera. He takes a subtle breath and utters a low, indistinct phrase in an unidentified language: \"…\", his lips moving clearly though the words remain untranslatable. Without breaking his focus, he resumes his task, executing a final, decisive downward blow that sends a last burst of plant matter rustling into the quiet air. The camera remains completely still throughout, holding the composition as the impact sound fades naturally into the open-air silence. With no music, wind, or background activity to distract, the scene isolates the solitary labor, emphasizing the raw physicality of the work and the crisp, unadorned soundscape of blade against plant matter.","video_1_relative_path":"videos/5a583c17db437141.mp4","video_2_relative_path":"videos/cac4b2b9ff881c05.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_1/00000054","text_prompt":"Cinematic observational footage, framed in a static medium close-up, captures a quiet moment inside a modest poultry enclosure with corrugated metal walls and a chain-link fence hinting at a rustic farmyard backdrop. Soft, diffuse daylight filters through an unseen opening, illuminating a dirt floor in muted earth tones while casting gentle shadows. On the left, a large white adult goose lowers its long neck toward a blue, double-sectioned plastic feeder filled with light-colored grain, its bright orange beak and webbed feet providing sharp color accents against the dull gray surroundings. To the center-right, a cluster of five fluffy yellow ducklings huddles quietly, their tiny heads turning and bodies shifting subtly to track the adult’s movements, though they remain passive and silent.\n\nAs the goose begins to peck, a rapid sequence of loud, high-pitched, strained squeals erupts in sync with each downward motion, dominating the sonic space with a frantic, staccato rhythm. These avian vocalizations are layered over the dry shuffling and scratching of feet against the gritty ground, while a constant low-level indoor hum and a faint wind-like hiss underscore the enclosed structure’s acoustics. The camera holds its fixed position without cuts, pans, or focus pulls, maintaining an intimate, observational composition that emphasizes unembellished realism. As the goose takes its final bites and lifts its head, the squeals and rustling gradually decay, leaving only the residual room tone of the quiet coop.","video_1_relative_path":"videos/b3e4c0464c45436f.mp4","video_2_relative_path":"videos/e0f7b0139dfe0fbb.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_2/00000051","text_prompt":"A cinematic night sequence opens on a quiet, multi-lane urban street where evenly spaced streetlights cast cool white pools onto the dark asphalt. Shot from a low camera angle parallel to the road surface, the frame tracks laterally as a black Yamaha R1M sport motorcycle glides into view from the left. The rider sits upright in a royal-blue hoodie, black pants, and black-and-white high-top sneakers, wearing a dark helmet with a blue-tinted visor. The motorcycle’s headlight cuts a sharp beam across the lane markings, while the soundscape is immediately dominated by a deep, throaty engine idle punctuated by sharp throttle blips that rise and fall in pitch. The front wheel’s rim catches a blue glint under the streetlamp, and the surrounding environment remains utterly still, with only hedges, a concrete median, and distant building lights sliding past in a shallow depth of field.\n\nThe rider plants both feet on the pavement, momentarily halting forward progress as the engine continues to rumble with percussive pops on each snap of the throttle. With a decisive twist of the grip, the bike surges forward. The rear tire briefly loses traction, sending up a thin plume of smoke before biting hard into the road, accompanied by a sudden spike in RPMs and a crackling exhaust note. The camera whips slightly to follow the burst of speed, introducing motion blur across the background foliage and lampposts as the engine noise climbs from guttural growls to a high-pitched roar. A bright red taillight flares against the darkness, marking the motorcycle’s departure down the empty roadway.\n\nThe motorcycle recedes into the distance, shrinking into a small silhouette framed by converging lane lines and glowing streetlamps. Its exhaust note diminishes in loudness but retains a steady, rising whine, indicating sustained acceleration as the camera holds its position. The surrounding environment—dark sky, silhouetted trees, and occasional reflective road signs—remains static, emphasizing the solitary journey. A faint urban hum of distant traffic lingers beneath the fading mechanical energy, leaving only the impression of raw power and nocturnal solitude echoing far down the road.","video_1_relative_path":"videos/57573176c16338cf.mp4","video_2_relative_path":"videos/5b77c73edac43e69.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_2/00000094","text_prompt":"Cinematic wide shot, fixed lens, static composition. The scene opens in total darkness, holding a completely still frame as a faint, low-frequency rumble begins to build in the soundscape, hinting at distant storm activity. Suddenly, a brilliant, jagged lightning bolt erupts across the upper-left quadrant of the frame, casting a stark, cold illumination that sharply outlines a silhouetted treeline and reveals the heavy, textured layers of the cloud cover. The flash is predominantly white with subtle gray undertones, branching violently before fading rapidly back into shadow. \n\nCoinciding with the visual strike, a sharp crack of thunder detonates, immediately giving way to a deep, resonant boom that rolls through the audio field. The sound is dominated by sub-bass and low frequencies, beginning at peak intensity and decaying exponentially over several seconds until only a minimal atmospheric hiss remains. The extreme dynamic range and precise synchronization between the blinding flash and the overwhelming acoustic impact create a visceral contrast between light and darkness. The camera holds its static position as the stormlight vanishes, leaving behind a mood of primal tension, awe, and raw natural force.","video_1_relative_path":"videos/922804ba000654fa.mp4","video_2_relative_path":"videos/1dd56296bdb95aee.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_3/00000045","text_prompt":"The scene opens on a completely featureless black frame, holding a static, unwavering shot with no camera movement, pans, tilts, or zooms. There is no imagery, color, or light to break the void; the visual field remains an absolute, motionless darkness throughout. This stark emptiness serves as a silent canvas, deliberately withholding all narrative or environmental cues to force complete attention onto the auditory layer.\n\nOver this visual silence, a dense, industrial-flavored electronic track erupts and sustains without pause. The mix is loud and heavily compressed, driven by a relentless, machine-like percussion pattern hovering around 120 to 130 beats per minute. Hard, kick-drum-like pulses anchor the rhythm, while sharp, high-frequency synthetic stabs and occasional metallic clicks slice through the mix to punctuate the beat. Beneath it all, a deep, resonant bass drone provides weight and tension. The audio is entirely synthetic and digitally processed, lacking any natural room tone, reverberation, or environmental ambience. With no speech, vocalizations, or dynamic shifts to break the flow, the piece cultivates a hypnotic, urgent atmosphere, relying purely on rhythmic precision and tonal texture to evoke a sense of suspended anticipation.","video_1_relative_path":"videos/201f1b788a840462.mp4","video_2_relative_path":"videos/77f3b8df740b7c40.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_3/00000060","text_prompt":"Cinematic observational scene, naturalistic lighting with dappled sunlight filtering through trees, shot on a 35mm lens for a grounded, documentary feel. The scene opens on a static medium shot of a detached white car door propped upright against a dark vertical post in a sunlit junkyard, resting on dirt and gravel scattered with crumpled plastic sheeting and scrap metal. A faint, low-frequency hum of distant machinery underpins the quiet atmosphere. Suddenly, a sharp metallic clang rings out from off-screen, brief but resonant, while the door remains perfectly still. A calm, mid-range male voice with a neutral American accent begins an instructional monologue, stating, \"Okay, uh, so basically first, first impact will take care of the structural stress, and then we move to the secondary brace.\" As he speaks, the camera drifts left in a smooth, handheld pan, revealing a large blue barrel on a wooden stand and the trunks of surrounding trees, the subtle shake adding a tactile texture. The frame then reverses, panning right to recenter on the white door. The moment the door fills the center of the shot, a loud, complex crash erupts—starting with a high-pitched metallic snap, dropping into a deep booming thud, and scattering rattling debris across the audio spectrum. The impact dominates the soundscape, briefly overwhelming the ambient hum, yet visually the door never moves, the sunlight stays steady, and no human figure enters the frame. The crash decays into silence, leaving only the persistent low-frequency drone and the quiet tension of an unseen engineering test unfolding just beyond the edge of sight.","video_1_relative_path":"videos/d769903a12a487a7.mp4","video_2_relative_path":"videos/87aeabf3c3b11ea5.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_3/00000077","text_prompt":"Cinematic instructional footage, shot on a 35mm lens in a dimly lit residential garage, opens with a slightly high-angle close-up of the glossy front left headlight and hood of a dark blue sedan. Overhead fluorescent tubes cast sharp reflections across the paint, illuminating a concrete floor scattered with faint debris. An unseen hand presses a white handheld remote with a blue backlit screen, triggering an immediate, sharp plastic click. Instantly, a piercing dual-tone electronic alarm erupts, alternating between a high-pitched shriek and a lower mechanical tone that fills the space with a jarring, utilitarian urgency. The camera holds steady on the car’s reflective surface as the shrill siren dominates the acoustic mix, layered over a low, reverberant garage ambience and a faint electrical hum.\n\nAs the alarm blares at full volume, a calm, instructional male voice cuts through the noise, stating, “So that’s the panic. That’s the exact same as the regular alarm.” Simultaneously, the camera abruptly pans right and tilts downward, washing the frame in a swift motion blur that sweeps past the vehicle’s grille and bumper. The tracking shot reveals the surrounding garage clutter, lingering briefly on a tall golf bag standing upright beside a black trash can and a bicycle wheel leaning against the wall. The subtle handling rustle of the remote blends into the scene as the relentless two-tone siren continues unbroken, anchoring the clip in a practical, functional demonstration of the car’s security system.","video_1_relative_path":"videos/583fa0347a279fb4.mp4","video_2_relative_path":"videos/f41bb424e6bcd351.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_4/00000055","text_prompt":"The scene opens on a low-angle, close-up frame fixed on the lower section of a light-beige block wall, its top edge torn open in a rough, jagged horizontal break where a concrete slab has been stripped away. Above the fracture, the faded blue jeans and dark work boots of a worker stand planted on the exposed upper level, a black electrical cord trailing down into the void. Bright natural daylight spills from the opening above, catching the gritty texture of the masonry while a piercing, high-pitched mechanical whirring dominates the soundscape. The tone is metallic and abrasive, carrying the relentless rhythm of a demolition saw or jackhammer grinding against hard material, its pitch modulating slightly as it meets varying resistance.\n\nAs the camera executes a slow, smooth downward tilt and gradual pullback, the perspective widens to reveal the full scope of the damaged interior. Dust motes drift through the sunlit air, settling over uneven rubble and exposed plumbing pipes that run vertically along peeling yellow walls. To the left, a white-framed window with a mesh screen frames a glimpse of the outside world, where green foliage and neighboring buildings hint at a dense urban neighborhood. In the foreground, untended leafy plants grow beside a low ledge, offering a quiet organic contrast to the industrial decay. The mechanical drone persists without interruption, wrapping the space in a stark, utilitarian atmosphere that captures the raw, unbroken momentum of active demolition in a single, seamless take.","video_1_relative_path":"videos/4f776c99d2273c0b.mp4","video_2_relative_path":"videos/e9223809d546fcf5.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_5/00000018","text_prompt":"A cinematic close-up shot, steady first-person perspective, warm diffused lighting, and a soft pastel palette anchored by light-brown wood tones and white cotton textures set an intimate, ASMR-grade scene. A shallow depth of field keeps the tactile interaction in sharp focus while softly blurring a purple-and-white cosmetic box resting in the background, its front panel adorned with cartoon rabbit illustrations and bilingual labeling. The hands enter the frame, hovering briefly before pinching and lifting small tufts. As fingers stretch and separate the cotton, fine strands drift downward, catching the light, while the mass is repeatedly compressed, released, and gently patted until the hands finally withdraw, leaving the pile to settle.\n\nThe soundscape is a high-fidelity tapestry of material interaction, dominated by crisp rustles, soft shuffles, and sharp, satisfying snaps as cotton strands part. Each compression and release produces distinct, muted thuds that sync perfectly with the visual rhythm, all layered over a quiet, low-frequency room tone that suggests a small, furnished space. Near the conclusion of the sequence, a quiet, breathy female voice whispers in Korean, stating \"제가 손으로 만져보면 정말 부드럽습니다.\" The voice fades as the final fibers settle, leaving only the residual ambient hum, reinforcing the scene’s calm, sensory-focused atmosphere.","video_1_relative_path":"videos/187b3f8e1feb1f5e.mp4","video_2_relative_path":"videos/78c1fd61e0e4d989.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_5/00000050","text_prompt":"A cinematic close-up inside a historic stone bell tower, angled slightly upward to frame massive bronze bells suspended in a rust-streaked iron framework. Soft daylight filters through arched windows, illuminating floating dust motes and casting a warm, weathered patina across the metal surfaces. The foreground bell dominates the composition, its curved body etched with classical Roman capitals bearing faded inscriptions that trace the passage of time. A low, continuous mechanical hum establishes the ambient noise floor, soon interrupted by a sharp metallic clank and the high-pitched squeak of tensioned pivots. The unseen machinery engages, and the right-hand bell begins a slow, deliberate swing, its motion drawing the viewer’s focus as faint rattles from loose structural components weave through the room tone.\n\nAs the primary bell arcs fully into view, its concave interior flashes past the lens before reversing direction. At the peak of its swing, a deep, resonant clang erupts, rich in low-mid frequencies and echoing with long decay through the cavernous stone chamber, accompanied by a softer secondary clink from sympathetic vibrations. The bell gradually decelerates, kinetic energy bleeding into the air as a second, slightly lower-pitched strike rings out against the apparatus. Beneath the fading resonance, the soft mechanical whir of an automated reset system returns, blending with the persistent ambient hum. The camera holds steady on the resting bells as the reverberations dissolve into the quiet, timeless atmosphere of the tower, leaving only the lingering memory of bronze and stone.","video_1_relative_path":"videos/57c48e6317021e48.mp4","video_2_relative_path":"videos/2c53e702340d8fca.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_5/00000064","text_prompt":"Cinematic wide static shot from the rear of a dimly lit auditorium, looking toward a stage framed by heavy, dark brown curtains and bathed in theatrical spotlights that isolate the performers against deep shadows. A large black banner hangs overhead, its surface adorned with colorful lettering and musical symbols that catch the stage light. Five musicians occupy the space: a drummer seated behind a kit at the center-back, a keyboardist standing to the left, two guitarists—one in a plaid shirt near center and another in a dark jacket on the right—both holding electric guitars, and a fifth performer crouching low near the front-left edge. In the foreground, the motionless silhouettes of audience members’ heads and shoulders suggest a captivated crowd waiting in anticipation.\n\nA muffled, slightly reverberant male voice cuts through the quiet, speaking in English with a casual, off-stage tone. He remarks, \"I don't know if you can play it, but let's give it a shot.\" The moment the words fade, a loud, energetic rock riff erupts, instantly dominating the acoustic space. Distorted electric guitars, a driving bass line, and a full drum kit launch into a fast-paced, high-volume performance that fills the large hall with raw, live-room reverb. The dense, layered instrumentation carries a punchy, relentless rhythm, completely masking any ambient room tone or crowd noise. The band plays with focused intensity, their instruments cutting through the reverberant air as the unblinking frame holds on their explosive entrance without interruption.","video_1_relative_path":"videos/760c2de05fd5cb3a.mp4","video_2_relative_path":"videos/9eda6cb6537457b1.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_6/00000050","text_prompt":"Cinematic concert hall scene, shot on a medium close-up rear-angle lens under focused stage lighting with a warm, dramatic palette, opens on an elderly male percussionist with curly white hair, dressed in a black suit and white shirt, seated at a set of large, copper-toned timpani drums. He strikes the drumheads rhythmically with two mallets, his movements precise and grounded, while a music stand holding sheet music rests just to his left. The audio is dominated entirely by his performance: each impact produces a deep, resonant boom with a long, natural decay, echoing through a vast, reverberant acoustic space. The recording is pristine, with no crowd noise, ambient hiss, or extraneous foley, emphasizing the solitary power of the percussion.\n\nA hard cut transitions to a wide, high-angle shot that reveals the full symphony orchestra arranged on a polished wooden stage. The percussionist remains centered in the foreground, his rhythmic pattern unwavering, while rows of string, woodwind, and brass musicians in formal black attire hold their instruments in stillness. To the left, the conductor’s podium stands empty, heightening the sense of anticipation. The timpani rhythm continues uninterrupted, maintaining a consistent forte dynamic and moderate pace, with the rich natural reverb of the concert hall enveloping every strike. The scene captures a moment of dramatic focus, where the commanding, isolated percussionist commands the acoustic space, leaving the rest of the ensemble poised and silent in the grand, shadowed hall.","video_1_relative_path":"videos/c0b9a8087a18c844.mp4","video_2_relative_path":"videos/d241f8e02a46d4dd.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_6/00000097","text_prompt":"A grounded cinematic wide shot, static camera, flat diffused lighting under an overcast sky, opens on an open grassy field where a red remote-controlled helicopter rests on its landing skids. The aircraft features white rotor blades, silver tail boom accents, and clear cockpit windows, positioned in the foreground while two men stand behind it. The operator on the left wears a red jacket, blue jeans, white sneakers, a black baseball cap, and sunglasses pushed up onto his forehead; he grips a black transmitter with both hands, thumbs poised over the controls, leaning slightly forward in quiet anticipation. Beside him, the observer stands in a matching red jacket, dark trousers, and white shoes, one hand resting on his hip, watching intently. The background slopes gently upward into a brownish-green embankment that meets distant tree-lined hills, all rendered in muted, natural tones. The soundscape begins with a faint, low-frequency electrical hum that lingers in the open-air environment. Suddenly, a sharp metallic click cuts through the silence, immediately triggering a rising high-pitched whir as the helicopter’s motor engages. The whir quickly deepens into a steady, powerful buzzing drone as the rotor blades accelerate, growing louder and dominating the audio mix while remaining perfectly centered. The two men remain motionless, their focus absolute, with no extraneous environmental noise or human breath disturbing the scene. The drone sustains at a stable volume as the blades spin visibly, building a palpable tension of imminent action. The visual and audio narrative hold on this moment of suspended takeoff, the rotor buzz still active as the scene concludes, leaving the viewer in the quiet concentration of a launch just about to begin.","video_1_relative_path":"videos/45bf965b01d4d6bb.mp4","video_2_relative_path":"videos/66280e6b67900eeb.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_7/00000005","text_prompt":"Cinematic medium shot, handheld and slightly shaky, opens inside a helicopter cabin framed by beige interior panels and a large rectangular window. The lighting is flat and diffused under a heavy overcast sky, casting a cool, desaturated blue-gray palette across the scene. The camera initially captures a crew member in profile on the right, clad in a green flight helmet with black ear covers and a bright orange life vest, their back to the viewer as they grip a vertical pole wrapped in alternating yellow and black stripes. Beyond the glass, a vast expanse of calm ocean stretches beneath the gray sky, its surface rippling gently. Dominating the mid-ground is a massive offshore oil rig, a tall, multi-legged steel structure painted white and red, topped with industrial equipment and a small blue module near its center. A red-and-white supply vessel floats quietly alongside the rig’s base. As the camera pans subtly leftward, the crew member gradually drifts out of frame, leaving the composition to focus almost entirely on the open sea and the towering infrastructure.\n\nThe entire sequence is drenched in the relentless, immersive roar of helicopter rotors. A loud, continuous mechanical drone fills the acoustic space, its low-frequency rumble layered with a sharp, high-pitched whine that vibrates through the confined metal cabin. There is no wind, no weather, no radio chatter, and no human breath to break the sound; the audio is a dense, enveloping wall of turbine noise and blade slap that underscores the raw juxtaposition of a solitary figure against the scale of heavy machinery and the vast ocean below. The atmosphere remains enclosed yet overwhelmingly dominated by the power of flight, emphasizing isolation and the sheer physical presence of the machine.","video_1_relative_path":"videos/b94895d32d14ad3b.mp4","video_2_relative_path":"videos/265e7d57c0c5253d.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/physics/physics_7/00000055","text_prompt":"A cinematic, surreal sequence rendered in a low-polygon, early-3D aesthetic, bathed in deep crimson and burnt-orange tones. A wide, static shot captures a hellish landscape where the ground stretches into a vast, flat plain resembling molten lava or dried blood, fading into a hazy reddish sky streaked with faint vertical lines that suggest atmospheric distortion or rain. On the right, a small open-sided pavilion with a dark, multi-tiered roof stands beneath a red-and-white striped banner that flutters gently in the wind. Inside, an elderly man with white hair, draped in a long blue robe over gray trousers, sits facing away from the camera. To the left, a jagged rock formation rises beside thin, skeletal trees and two tall, segmented pillars painted in alternating red and white bands, while a black lamppost with a boxy lantern anchors the center-left foreground. A sharp, resonant metallic impact echoes through the scene, its high-frequency ring and brief decay coinciding precisely with the man beginning to rise from his seat.\n\nHe steps out of the pavilion and turns left, his movement accompanied by the soft rustle of shifting fabric and the muted thuds of his feet meeting the uneven terrain. The camera remains fixed but subtly tilts or zooms out, revealing more of the foreground slope as he walks forward. As he reaches the edge of the elevated platform, he pauses before stepping down to the lower ground, each of the three distinct footfall impacts growing slightly louder to match the visual descent. Throughout the sequence, a continuous low-frequency rumble layers with intermittent high-frequency crackles and a faint broadband hiss, evoking geological instability or supernatural tension. Underpinning it all is a slow, minor-key orchestral score featuring sustained string pads and sparse piano chords, maintaining a mezzo-piano dynamic that casts a melancholic, cinematic weight over the scene. The man finally stops at the bottom, facing forward, as the environment holds eerily still around him, the banner and atmospheric streaks providing the only motion in a composition defined by isolation and quiet dread.","video_1_relative_path":"videos/115f4876399d56c3.mp4","video_2_relative_path":"videos/cfd53f0cf20b0078.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/physics/physics_7/00000097","text_prompt":"A documentary-style scene opens on a sunlit outdoor construction site, captured in a static medium-close shot angled slightly downward. In the foreground, a man with short dark hair and a black polo shirt kneels beside a freshly poured concrete retaining wall, using a metal trowel to smooth its rough surface; his left hand steadies the tool while his right guides it along vertical grooves. Behind him, another worker’s lower body, clad in black shorts and tan work boots, shifts within the frame, stepping over scattered rocks and tools. The uneven dirt ground is strewn with a green tarp, a yellow bucket, and an orange-and-white cooler resting near a tree trunk. Bright natural sunlight casts sharp shadows across the terrain, emphasizing the gritty textures of wet gray concrete and dusty earth.\n\nOver this raw, unedited tableau, a male foreman with a General American accent begins speaking, his voice conversational yet gradually strained as the environment grows louder. He states, “We’re pushing through the weekend, and the forms aren’t that tight, so we’re gonna kind of break up the seams before it sets.” His words are steadily swallowed by a loud, low-frequency mechanical rumble that swells from nearby heavy equipment, partially masking his speech and underscoring the physical demands of the site. Faint, rhythmic scraping echoes as the trowel meets the wet surface, while a barely perceptible wind rustle lingers in the open-air space. The absence of music or stylized editing reinforces the immediacy of the moment, capturing a snapshot of skilled craftsmanship interrupted by the relentless hum of machinery.","video_1_relative_path":"videos/7d738d37b64030c8.mp4","video_2_relative_path":"videos/09b8854ee5307e3e.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/podcast/podcast_1/00000000","text_prompt":"Cinematic medium close-up, warm spotlight isolation against a nearly black backdrop with faint curtain folds, deep shadow palette. A woman from the waist up is centered, wearing a sleeveless coral-orange dress that catches the light, a silver pendant glinting at her mid-chest and small stud earrings framing her face. Her shoulder-length hair is parted to the side as she speaks directly into the lens with calm conviction. The lighting isolates her figure, leaving the background in deep shadow while casting a gentle fall-off across her right shoulder. As she talks, her hands rise from a clasped position near her waist, opening outward in an explanatory gesture before returning to rest. Her expression remains earnest, eyebrows lifting slightly for emphasis. A calm, neutral female voice with a North American accent begins, stating, \"My father discouraged me from pursuing them as a career because he had seen too many people try and fail at that.\" The audio is dominated by her clear delivery, accompanied only by a faint, steady room tone and a barely audible low-frequency hum, with no music or extraneous noise.\n\nThe scene cuts abruptly to a wide, high-angle view of the same auditorium, revealing the speaker now as a small figure standing on a circular red rug at center stage. To her left, large three-dimensional red letters spell out “TEDx,” with “Peterborough” in smaller white type beneath, set against a black drape backdrop. Rows of audience members sit silhouetted in the dim light, facing the stage. The spotlight continues to illuminate the speaker and the rug, while the surrounding floor and seating remain swallowed by darkness. She resumes gesturing, shifting her weight subtly as she finishes her thought. A calm, neutral female voice continues, adding, \"So I worked really hard at school to carve out my own future.\" The audio concludes with her final words ringing out clearly, followed by a short natural reverberation tail characteristic of a moderately sized hall, while the faint ambient hum persists until the scene fades.","video_1_relative_path":"videos/fd788bc7ed0b4602.mp4","video_2_relative_path":"videos/9906e2484c86141d.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/podcast/podcast_1/00000025","text_prompt":"A cinematic medium shot opens on a stage bathed in bright, even lighting, set against a large deep blue backdrop intersected by a horizontal white wavy graphic. Center stage, a woman stands perfectly still in a black-and-white patterned long-sleeved blouse and a dark brown skirt, holding a small round object at waist level with both hands. Her posture is upright and composed, her gaze fixed steadily on the audience as the scene unfolds. The audio immediately introduces a clear, rhythmic sequence of high-pitched, melodic bird chirps that dominate the soundscape, echoing faintly in the quiet indoor auditorium. The camera remains locked in place, allowing the woman’s calm presence and the persistent, gradually fading avian calls to establish a neutral, instructional atmosphere.","video_1_relative_path":"videos/7cab2d486b21832e.mp4","video_2_relative_path":"videos/817ae9f029afaf7f.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/podcast/podcast_1/00000028","text_prompt":"A polished studio interview scene opens in a static close-up, framed with crisp lighting and a saturated palette of magenta, red, and deep blue. The shot focuses on a middle-aged woman with shoulder-length highlighted blonde hair, wearing a bright magenta off-the-shoulder top and a chunky multicolored beaded necklace. She smiles broadly, looking down and slightly to her right with a bashful, amused expression. A warm, conversational female American voice begins, stating, \"No, I do, I include you in that, because listen, you know, I truly mean it.\" The audio remains clean and intimate, carrying only her mid-to-high pitched speech and a faint, steady room tone.\n\nA hard cut transitions to a medium two-shot against a deep blue curtain backdrop, where the same woman now wears a light beige blazer over a leopard-print blouse and grey trousers, seated beside an older companion with short dark curly hair in a black-and-white patterned jacket. The camera holds steady as she gestures expressively with both hands, … a slightly more animated female voice …: \"It's nice to have somebody still around to play with and learn from.\" Her companion listens attentively, gently holding her left hand, anchoring the moment in quiet affection. The environment stays acoustically controlled, free of music or background noise, allowing the emotional resonance of their shared companionship and reflective conversation to take center stage.","video_1_relative_path":"videos/b72e3b13f5d96fe5.mp4","video_2_relative_path":"videos/01c328161c7474c5.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/podcast/podcast_1/00000082","text_prompt":"Cinematic lecture sequence, steady medium-wide shot, cool blue background lighting with warm spotlights on a circular red stage, captures a speaker in a light blue button-down and dark trousers delivering a presentation. His posture is upright, his gestures deliberate as he addresses a dimly lit auditorium where audience silhouettes sit attentively in the foreground. The camera holds its position, letting his calm, resonant voice fill the quiet space with the natural reverb of a large indoor venue, accompanied only by faint room tone. As he speaks, he raises his right hand slightly for emphasis before lowering it, his measured cadence stating, \"Every year, thousands of people are killed on our roads.\"\n\nThe scene cuts abruptly to a static, upward-looking exterior shot of a large white commercial airplane soaring directly overhead against a clear, bright blue sky. The aircraft’s extended landing gear and twin jet engines are sharply detailed, emphasizing its scale and steady motion as it passes. The speaker’s voice continues seamlessly over this visual shift, bridging the two settings without interruption, adding, \"To put that in perspective, that is equivalent to a Boeing 747 crashing every single day.\" The audio remains strictly focused on his speech, devoid of music or ambient noise, preserving the weight of the statistical analogy.\n\nThe sequence returns to the stage, maintaining the cool blue background tones and warm spotlighting that isolate the presenter. He resumes his gesture-driven delivery, hands moving rhythmically to underscore the comparison between annual traffic fatalities and aviation accidents. The audience remains seated and still, reinforcing the solemn, academic mood. As he builds toward his conclusion, his voice carries the full weight of the metaphor, leaving the stark imagery of the passing aircraft lingering in the viewer’s mind as the narrative thread closes on the sobering reality of road safety statistics.","video_1_relative_path":"videos/218c7000c5ca49ee.mp4","video_2_relative_path":"videos/70038de50cb01eb4.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_1/00000009","text_prompt":"Cinematic thriller atmosphere, captured on a static medium close-up lens that locks onto a bearded man bound upright against a rough tree trunk in a pitch-black void. A deep, monochrome blood-red glow pours from an unseen source just off-frame, casting long, stark shadows across his shirt, which bears faint dark stains near the collar. Thick rope circles his chest and pins his arms behind him, his head tilted slightly upward and to the right, eyes concealed beneath a black blindfold. The lighting remains minimal, leaving the background in indistinct darkness to heighten the claustrophobic tension. A calm, dramatic female Mandarin voice-over begins, stating “He has already been born; unexpectedly, the man’s face immediately changes,” while a barely audible low drone underpins the sparse sonic environment.\n\nSuddenly, the man jerks his head and his mouth opens wide as he unleashes a guttural, strained outburst. His deep, highly agitated Turkish voice cuts through the darkness, roaring “Her oğlan!” with raw fury, veins pulsing at his temples despite the blindfold. Simultaneously, a sharp percussive impact, like a heavy slap or strike, rings out briefly louder than his shout. The red illumination flickers almost imperceptibly, amplifying the menace as the voice cracks with rage. The scene holds on his tense, shadowed face without cutting away, leaving the atmosphere charged and unresolved, underscored by the absence of music or ambient noise to emphasize the raw immediacy of the confrontation.","video_1_relative_path":"videos/818936164f5bc75c.mp4","video_2_relative_path":"videos/3d26fda85092270b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_1/00000013","text_prompt":"A steady, eye-level medium close-up holds on an East Asian man in his late twenties, his face sharply modeled by a key light from camera-left that casts a chiaroscuro glow across his features while the background dissolves into a desaturated, gently blurred wash of muted greens and browns. He sports a severe buzz cut and wears a dark olive-green field jacket fastened with two silver snap buttons at the collar. His brow is deeply knitted, eyes locked on someone just off-screen to his right, and a single tear catches the light on his left cheek as a low, tense Cantonese voice from the man speaks, stating \"你身家都唔乾淨，你都有嫌疑。\" The shallow depth of field isolates his strained expression, while a faint electronic underscore of mid-tempo synth pads and a muted beat pulses quietly beneath the scene, underscoring the mounting suspense.\n\nHis tone sharpens as he continues, the tension in his jaw tightening before he finishes the thought, \"兩人你一言我一語直接對峙起來。\" A brief silence follows, leaving only the ambient hum of the dim interior, until a calm, neutral male Mandarin voice-over steps in to carry the narrative forward, stating \"兩人你一言我一語直接吵得不可開交。\" The static frame remains locked on the speaker’s weary, emotional state, the warm tones of his skin contrasting with the cool, shadowed edges of the room, while the subtle synth score holds steady, preserving the quiet intensity of the moment.","video_1_relative_path":"videos/3581424394145d67.mp4","video_2_relative_path":"videos/b533facf1248d2b7.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_1/00000041","text_prompt":"In the style of a restrained European drama, the scene opens on a steady, eye-level medium two-shot framed in widescreen, capturing a modest, white-walled room bathed in soft, diffuse daylight from camera right. The muted earth-tone palette of beige, grey, and light blue reinforces a subdued, realistic mood, while a shallow depth of field keeps the background details softly out of focus. In the left foreground, an older man in his late sixties, his grey hair brushed back beneath a light-grey pin-striped suit jacket and white collared shirt, holds a dark-brown leather wallet. With his right hand, he carefully extracts a small, pale-yellow envelope and begins to speak in calm, measured Mandarin, stating \"What he has gathered during this time is far more valuable than money.\" A faint indoor room tone underlies the scene as he extends the envelope toward the chest of the younger man standing opposite him. The younger man, dressed in a beige corduroy jacket over a light-blue shirt with dark curly hair, faces him attentively, offering a polite half-smile.\n\nJust as the envelope reaches him, the younger man raises his right hand, palm open, and firmly rejects it. He shakes his head slightly, his expression shifting from polite amusement to warm but resolute sincerity. A warm, insistent Italian voice follows: \"No, no, veramente no, I really cannot accept this.\" The older man pauses mid-motion, his eyebrows lifting in mild surprise as he lowers the envelope fractionally toward his waist. The camera remains completely still, preserving the intimate conversational atmosphere as the exchange hangs in the quiet, unadorned space. The ambient room tone persists without musical accompaniment or added effects, anchoring the moment in a grounded, ethically charged stillness that emphasizes the quiet weight of the unspoken values passing between them.","video_1_relative_path":"videos/c4d383c1d3e155dc.mp4","video_2_relative_path":"videos/7106bda2ed292f00.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_1/00000048","text_prompt":"Cinematic drama, medium close-up, static eye-level framing with shallow depth of field. A middle-aged East Asian man in a dark suit jacket and open-neck white shirt sits slightly right of center in a muted industrial warehouse, his face illuminated by soft natural daylight filtering through high windows that cast a mild chiaroscuro across his features. The scene is grounded in a palette of concrete greys, rusted browns, and dull blues, with the background of metal railings, stacked crates, and a receding ramp dissolving into soft focus. Behind him, a half-visible man in a light straw fedora with a black band stands motionless, gazing forward with a neutral expression. A low-volume orchestral underscore of low strings and sparse percussion begins, sustaining quiet tension. Over this bed, a calm male narrator in Standard Mandarin speaks with measured clarity, asking, “表演，什么叫过硬的台词？”\n\nThe suited man leans fractionally forward, his brows knitting and eyes narrowing as he gathers force for his reply. His jaw tightens, and he takes over in a firm, resonant baritone with a slight northern coloring, delivering his line with controlled breath and authoritative timbre: “决定一个人该不该枪毙。” The orchestral harmony deepens, reinforcing the gravity of the moral weight behind his words. As intensity peaks, his head tilts slightly downward, nostrils flare, and his volume rises to a decisive, emphatic cadence. He finishes with clipped articulation, stating, “这事不该吹毛求疵。” The camera holds steady on his resolute expression as the score fades imperceptibly, leaving the industrial backdrop softly blurred and the scene closed on the unyielding weight of his conviction.","video_1_relative_path":"videos/810a1637273c77d7.mp4","video_2_relative_path":"videos/fe8c36c31e4165f7.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_2/00000004","text_prompt":"Cinematic medium shot, neutral-cool daylight floods a brightly lit room with large windows framing a modern city skyline, casting a reflective tone over a dark, cluttered dining-style table. An older, balding, bearded man in a white shirt and loosened patterned tie leans forward, spooning jam into a glass before spreading it on a slice of bread, while a younger man in a short-sleeved mauve T-shirt chews his own jam-spread toast. A calm, documentary-style male Mandarin voice-over begins, stating \"现在无所事事的生活令他感到厌烦。\" Beneath the narration, a soft, slow piano melody plays quietly, establishing a contemplative mood. As the narrator continues, \"负责人却言简意赅，直击要害。\", the camera executes a subtle pan to the left, revealing a tall stack of orange folders, a black stereo system, a framed seascape photograph, two French posters, and four red-and-gold Matryoshka dolls arranged on a side surface.\n\nThe older man straightens slightly, lifts a buttered slice of bread to emphasize his point, and speaks in French with a measured, philosophical tone: \"Pour parvenir au repos, que l’homme travaille.\" His expression is earnest as the younger man pauses mid-chew, looking attentively at him. Maintaining eye contact, the older man adds, \"Mais c’est peut-être pour ça que votre ennui ne vous quitte pas.\" His thought concludes with a deliberate cadence as he gestures lightly with the bread, while the younger man listens silently, still holding his own piece of toast. The scene remains anchored by the steady piano accompaniment and a color palette of neutral whites and greys punctuated by warm accents of orange, red, and the rich brown of jam and bread, evoking an inter-cultural meditation on idleness and purpose.","video_1_relative_path":"videos/b674b69fd578c6aa.mp4","video_2_relative_path":"videos/f985ea3474682d60.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_2/00000083","text_prompt":"An adventure-comedy scene captured in a single static medium shot, bathed in the warm, low-key illumination of a stone fireplace that casts deep shadows and amber highlights across a rustic log cabin interior. The palette is dominated by earthy browns and tans, punctuated by a vivid red cloth that serves as a focal accent. A shirtless man in his early thirties, wearing loose light-colored striped underwear and a black wristwatch, stands near the center, bent over a dark-green metal chest on a low table. He has short dark hair and a mustache, and as he rummages inside the chest, a bright, enthusiastic female Mandarin voice-over begins, stating, “An adventure comedy film, *Treasure Vacation*.” Her upbeat, announcer-like delivery cuts through the soft indoor room tone and faint crackling of the fire, establishing a lively, review-style atmosphere.\n\nIn the background, a second shirtless man in patterned shorts sits on a wooden bench, idly handling an unseen object before glancing toward his companion. The standing man lifts the red cloth from the chest, holding it up for inspection while a relaxed, casually amused male English voice remarks, “Actually, I wouldn’t mind wearing one of these deer pelts up there.” The camera remains fixed, allowing the warm flickering light to dance across their faces, the hanging deer antlers, and the strings of cured meats, while the continuous, unobtrusive fire crackle and absence of music keep the focus entirely on the naturalistic dialogue and the tactile, wilderness setting.","video_1_relative_path":"videos/0194151242c1a7b1.mp4","video_2_relative_path":"videos/3b8bba91ef72216b.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_3/00000000","text_prompt":"A cinematic historical drama scene opens in a bright, evenly lit outdoor courtyard of an imperial Chinese palace, bathed in diffuse natural daylight that eliminates harsh shadows and lends a clear, documentary-like clarity to the emerald green, turquoise, crimson, and muted stone-grey palette. Shot in a single continuous low-angle medium take, the composition is symmetrically anchored by two tall, vividly painted ceremonial shields with turquoise-blue grounds, red and gold borders, and stylized yellow lion-like faces at their centers. Between them strides a central official in his fifties, his short dark hair graying at the temples, wearing round wire-rim glasses, a dark forest-green Qing dynasty robe adorned with a square multicolored rank badge, and a long string of deep-blue prayer beads. His hands are clasped before him as he moves from frame right toward the center, flanked by two younger attendants in dark blue robes and red conical hats with white brims who grip the inner edges of the shields with alert concentration. A calm male narrator in standard Mandarin begins, stating “但哪料郑伯已经暗中反水到了王爷一方。” while soft traditional strings and percussion provide a restrained, courtly musical bed.\n\nReaching the midpoint between the shields, the official halts and lifts his head, his posture upright and shoulders squared to convey quiet authority, though he remains silent for a moment. … the central official, delivering a sudden loud shout in Mandarin with a theatrical, urgent tone, exclaims “苏灿的靶上没有箭！” The forceful projection carries a slight reverberation across the open courtyard, startling the attendants who glance up briefly before returning to their watchful stance. The narrator’s track fades out, leaving only the live dialogue and the subdued traditional music to underscore the tension. The scene holds on this frozen tableau of officials and guards framed by the ornate shields, the juxtaposition of composed narration and sudden accusatory delivery hinting at a dramatic revelation of betrayal and impending conflict within the late imperial court.","video_1_relative_path":"videos/07e3e32ee5c4a70a.mp4","video_2_relative_path":"videos/ca26341578c62641.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_3/00000016","text_prompt":"Open on a fixed, medium-wide shot inside an opulent Qing-dynasty-style hall, bathed in warm, diffuse light that glints off glossy red pillars, carved lattice doors, and polished wooden flooring. The composition places a young imperial figure in the left third of the frame, his visual dominance established by an ornate yellow-gold dragon robe with flaring shoulder pieces, a heavy amber bead necklace, and a patterned cap. He stands erect, hands loosely clasped, eyes lifted slightly left as if addressing an unseen presence. Behind him, a subordinate in a dark navy robe and red-topped conical hat waits motionless near a low table holding a golden ceremonial helmet and bronze censer, while a rack of black polearms with white tassels leans against the right wall. The atmosphere is heavy with imperial tension, underscored by a steady, authoritative male Mandarin voice-over.\n\nThe narrator begins with a firm, declarative cadence, stating, “This revenge, one strike each, we owe nothing more.” Without camera movement, the shot holds as the voice continues, edged with resolve: “Relying on a tongue so sharp it never rots.” In the background, the subordinate suddenly breaks his stillness, bending at the waist in a smooth, deliberate bow that drops his head below the frame’s edge, emphasizing the rigid hierarchy between the two men. The main character remains utterly composed, his expression unchanging. As the narration proceeds, the voice begins a new clause, “Xiao Bao takes the lead,” but the sentence cuts off abruptly mid-phrase, leaving the thought suspended. The audio track ends sharply on the truncated syllable, and the image freezes on the bowed figure, closing the scene on a deliberate, cinematic cliffhanger.","video_1_relative_path":"videos/d9ddd3b1efffe196.mp4","video_2_relative_path":"videos/475cb3389fe4b482.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_3/00000051","text_prompt":"Open in a dim, industrial interior washed in sickly yellow-green light, where a single overhead fluorescent source casts hard, high-contrast shadows that emphasize a clandestine mood. A medium close-up frames two men standing face-to-face at eye level against a backdrop of heavy black machinery pierced by four circular apertures. On the left, a younger man with short dark hair, glasses, and a small hoop earring wears a black collared shirt. Beside him, an older bespectacled man with a trimmed goatee and a thin chain dangling from his ear wears a light olive jacket over a patterned shirt, holding a small metallic tool near his chest. A calm, neutral male Mandarin voice-over begins, stating “凹版印刷机通常只有政府才有权使用。” The scene is underscored by a faint, low-frequency room hum that deepens the atmosphere of quiet authority.\n\nA sharp rack-focus suddenly blurs the foreground pair into soft silhouettes, redirecting attention to a raised platform behind the machinery where a middle-aged man in a dark suit and tie leans over the railing, clutching several sheets of paper. He hurls one sheet downward toward the men below, and at the exact moment it leaves his hand, a loud, urgent male Cantonese voice rings out with slight reverberation: “喂！” Maintaining the shallow depth-of-field, the suited man continues gesturing emphatically with both arms spread wide, his mouth open mid-command as he still holds the remaining documents. The younger man tilts his head upward to track the falling page, while the older man lowers his gaze to follow it. The ambient hum persists as the shot holds steady, leaving the cavernous space thick with tension and unspoken expectation.","video_1_relative_path":"videos/dac589e98f12f889.mp4","video_2_relative_path":"videos/8ad7875ac5d0c32a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_4/00000059","text_prompt":"A tense thriller/crime-action sequence unfolds in widescreen 16:9, defined by static eye-level framing, shallow depth of field, and a desaturated color palette that contrasts cool indoor blues with harsh exterior daylight. The camera peers from behind a blurred foreground object, catching a middle-aged Caucasian man with short dark hair and a neatly trimmed mustache as he steps cautiously from shadow into the cool glow of a porch light. He wears a charcoal-grey plaid blazer over a black crew-neck T-shirt, framed by a deep-blue doorplate marked “116” on the left and an off-white brick wall with a small picture on the right. A low, ominous electronic drone underscores the scene as a grave, urgent male Mandarin voice-over begins, declaring, “He would rather die than return to prison; he will be killed on the spot.”\n\nThe sequence cuts sharply to a sunlit exterior where three operatives stand beside a dark vehicle against a pale building façade. In the center, a rugged, greying man in a black tactical vest raises a black assault rifle, aiming forward with intense focus, while a cleaner-cut man in a dark business suit watches tensely beside him. Behind them, a curly-haired operative peers over the car roof. The crisp shadows and desaturated tones heighten the danger as the Mandarin narration continues, reinforcing the lethal stakes. The camera then returns to the interior, tightening into a close-up of the first man’s face. Sweat beads on his brow, his eyes wide with alarm as he looks upward toward an unseen threat, the soft directional lighting carving stark contrasts across his features.\n\nAs the shot lingers on his reaction, the Mandarin audio fades and a calm, authoritative English male voice cuts through the tension, stating, “I have instructions to shoot at the first sign of movement.” The sentence trails off into the persistent electronic bed, leaving the standoff unresolved. The scene closes on the man’s frozen expression, the subdued synth pad swelling imperceptibly to underscore the imminent violence, all rendered with a cool, desaturated palette that contrasts the indoor entrapment with the outdoor threat.","video_1_relative_path":"videos/8869871e4cade5f4.mp4","video_2_relative_path":"videos/4df9d2dd4b65c4ab.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_4/00000081","text_prompt":"A moody, noir-inspired sequence opens with high-contrast chiaroscuro lighting, a shallow depth of field, and a muted palette of deep greens, shadowed grays, and warm ambient tones. The scene unfolds in a dimly lit bar or pool hall where indistinct patrons blur into the background. A tight close-up frames an older, fair-skinned man with thinning blond hair and a short gray beard, his face carved by harsh side lighting and a faint rim light that separates him from the shadows. He wears a dark green collared jacket over a lighter shirt, his lined expression heavy with quiet gravity. A calm male Mandarin narrator begins in a measured, storytelling cadence, stating “结果被一个打台球的大爷给狠狠地羞辱了一番。” A low, ominous electronic drone underscores the moment, mixed quietly beneath the voice-over to establish a subdued but foreboding atmosphere.\n\nA straight cut shifts to a medium-close profile of a younger, fair-skinned man with tousled blond hair and a trimmed goatee, his eyes reddened and slightly swollen from a recent injury. He stands in three-quarter view, gazing leftward toward someone off-screen, his jaw tight with tension. The camera pushes into a frontal close-up as the low-key lighting catches the moisture in his eyes and the subtle fatigue in his features. … a gravelly male voice with a mild North-American accent speaks slowly and hesitantly: “But luckily for me, uh… I managed to walk away from it all.” A fleeting half-smile flickers across his face as his head tilts back slightly before settling forward again. The atmospheric synth pad persists at a steady, subdued level, never overpowering the dialogue, while the absence of ambient diegetic sound keeps the focus entirely on his isolated, unresolved confession, leaving the scene hanging like a tense teaser.","video_1_relative_path":"videos/c75d3adfe211c893.mp4","video_2_relative_path":"videos/663850e0950c5d27.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_5/00000003","text_prompt":"Cinematic drama, 35mm lens, natural window light filtered through vertical blinds casts chiaroscuro shadows across a dimly lit study. The scene opens with a tight close-up of a middle-aged man in a dark suit and tie, his face softly side-lit as his eyes remain lowered, his expression tense yet tightly controlled. A faint, low-frequency electronic drone begins to hum beneath the silence, establishing an immediate atmosphere of suspense. The camera remains completely static, holding on his brooding descent into resolve as the ambient room tone stays virtually empty, amplifying the quiet intensity of the moment.\n\nA hard cut shifts to a medium close-up of a woman seated slightly left of frame, her shoulder-length brown hair framing a grave, alert face as she wears a textured gray sweater. Behind her, a warmly glowing table lamp and framed artwork add depth against a muted wall. As she subtly shifts her gaze downward, an urgent, gender-indeterminate off-screen narrator begins in rapid Mandarin, stating \"Seize this opportunity, the female lead quickly grabs the gun on the table, then makes a run for it.\" The ominous synth pad continues quietly underneath, matching the narrator’s neutral-to-tense prosody while the woman’s lips remain still, emphasizing that the voice is purely non-diegetic. The lighting stays soft and directional, highlighting the subtle tension in her features without harsh contrast.\n\nAnother sharp cut returns to the man, now framed from a slightly lower angle as his head tilts upward, reacting to an unseen presence. Stripes of sunlight catch his cheek and neck, heightening the sense of urgency while the steady musical pulse holds firm. The sequence cuts back to the woman for a final moment; her brow furrows, her eyes widen minutely, and she draws a quick, visible breath before the image freezes on her intense stare. The narrator’s sentence concludes simultaneously with the visual stillness, the underlying drone sustaining for a fraction of a second longer before both picture and sound cut out abruptly, leaving a lingering, unresolved tension that foreshadows impending conflict.","video_1_relative_path":"videos/f15cba05e4cb3459.mp4","video_2_relative_path":"videos/8f8579ecf621aa71.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_5/00000078","text_prompt":"A documentary-style aerial shot opens on a mist-softened panorama of an immense karst mountain valley in southeastern China. Captured with a slow backward-and-upward drone glide, the scene is bathed in soft, overcast daylight that yields even illumination and muted contrasts, establishing a palette of lush greens, earthy browns, grey-black roof tiles, and pale blue-grey atmospheric haze. Tier upon tier of emerald-green rice terraces ripple down the slopes like giant staircases, their shallow water surfaces catching diffused light to create shimmering ribbons against the brown earth. A small village of dark-tiled wooden houses nestles on a gentle rise, its clustered roofs forming a compact silhouette. As foreground tree silhouettes slide past, adding depth to the composition, a calm, mid-low pitched male Mandarin voice-over begins, stating \"The people of the mountains created delicious food in the barren highlands.\" Beneath his steady, documentary-style delivery, a low orchestral string pad of cellos and violas fades in, its adagio tempo and consonant harmonies supporting the reverent tone.\n\nThe camera continues its smooth retreat, expanding the field of view to reveal additional concentric rings of terraces climbing into the hazy distance. The village grows smaller as the ascent exposes the sheer scale of the agricultural landscape, dozens of curved levels descending toward the valley floor. The narrator’s cadence remains unhurried, his voice carrying a quiet awe as he continues, \"This is thanks to their wisdom in facing the towering peaks.\" The string arrangement swells subtly to underscore the reverence for nature, then gently diminishes as the speech concludes. Stripped of environmental ambience, the scene rests on this majestic, symmetrical composition, where the leading lines of the terrace edges guide the eye across the intricate lattice stretching to the horizon. The music fades into silence, leaving a lingering sense of ecological harmony and cultural resilience.","video_1_relative_path":"videos/c45e7bf93db3719a.mp4","video_2_relative_path":"videos/ca40e7edb796fbec.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_5/00000081","text_prompt":"Cinematic underwater documentary sequence, captured on a static medium-close lens with a cool green-to-warm gold color palette, opens beneath the surface of a tranquil ocean where a cluster of black sea urchins densely covers a pale rock on a sandy seabed. Fine particles drift slowly through the water, anchored by the constant, rhythmic bloop of scuba breathing beneath a soft, low-frequency orchestral pad that establishes a quiet, exploratory mood. A hard cut then shifts the perspective to a dramatic upward view from within a towering kelp forest, where golden sunlight streams through translucent blades to cast moving shafts of light and gentle lens flares as the camera tilts slowly skyward. The score swells with sustained strings, and a calm, documentary-style adult male Mandarin narrator begins, stating \"纯净的水体和活跃的洋流\". The underwater bubbling continues underneath, now joined by faint, distant gull-like cries that hint at life above the surface, while natural backlighting through the fronds creates a chiaroscuro effect that emphasizes depth and texture.\n\nThe camera holds steady among the swaying kelp fronds near the rocky bottom, focusing on a large greenish-black sea urchin clinging to a barnacle-studded stone as two small silvery fish dart through the algae. The narrator’s voice remains steady and reverent as he completes the thought, adding \"造就了它们非凡的品质\". A close-up then isolates a solitary brown crab perched atop a mound of smooth pebbles and mussel shells, its mottled carapage blending seamlessly with the algae-covered stones while tiny crustaceans scuttle nearby in dimmer, texture-focused lighting. As the narration pauses, only ambient bubbles, subtle string chords, and a barely perceptible high synth layer remain. The scene widens into a hazy teal expanse where a school of grey fish glides left to right across the frame, anchored by a broad purple-flecked rock in the foreground and dense kelp receding into the mist. The narrator resumes, beginning \"这是一个陌生而又新奇的世界\", before the final image lingers on the drifting fish and sunlit kelp. All audio elements—the completed narration, ambient bubbles, and atmospheric score—fade simultaneously, leaving a sense of open-ended discovery that celebrates the pristine marine ecosystem and invites curiosity about the depths beyond.","video_1_relative_path":"videos/7e5ae6bda964d239.mp4","video_2_relative_path":"videos/0ea8104c84bc75e5.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_6/00000009","text_prompt":"A contemplative documentary sequence opens with a static, eye-level medium-long shot framed through blurred foreground leaves that act as natural window panes. A lone worker in a pale straw hat, dark long-sleeved shirt, and light trousers stands on a narrow earthen bank beside a calm, brownish waterway. He grips an exceptionally long wooden pole, twice his height, planting its tip into the mud to propel himself forward while leaning slightly for balance. Behind him, a dense wall of towering heart-shaped leaves rises against an overcast sky, their saturated greens and earthy browns softened by shallow focus to isolate the figure. The atmosphere is hushed, devoid of wind or machinery, as a gentle instrumental bed swells—led by a plaintive erhu-like bowed string, delicate piano arpeggios, and sustained synthetic pads. Over this reflective score, a calm, neutral male Mandarin narrator speaks in a clear, documentary tone: \"The unique land beneath their feet is called Duotian.\"\n\nA hard cut shifts the perspective to a high-angle aerial panorama, revealing the extraordinary patchwork of traditional raised-field agriculture. Countless rectangular and irregular plots emerge from shallow, jade-green water, separated by meandering channels. Some fields glow with emerald crops, others rest in rich brown soil, and a large central rectangle shows lighter tan earth prepared for planting. Tiny human figures dot the landscape, emphasizing its vast scale. As the camera performs a slow, smooth pan to the right, the color palette transitions to muted, misty tones under a uniformly grey sky, underscoring the thematic contrast between individual labor and the expansive wetland environment. The music sustains its serene, slightly melancholic cadence, carrying the scene into stillness as the aerial vista lingers without additional motion or audio flourish.","video_1_relative_path":"videos/722a95d3709beb50.mp4","video_2_relative_path":"videos/30cc232f51351664.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_6/00000029","text_prompt":"Cinematic culinary documentary style, shot with a macro lens under soft, diffuse daylight and a warm palette of vivid reds, fresh greens, and golden yellows. The sequence opens on a tight, slightly high-angle close-up of dozens of small, round cherry tomatoes floating in clear water inside a dark basin. Their skins glisten under the even light, most a deep crimson while a few retain green or yellow ripening patches. Gentle ripples disturb the surface as the fruits bob and collide softly, accompanied by a hushed, intimate ambience. A calm, neutral male Mandarin voice-over begins, stating \"味道.\" The camera then cuts to a static medium view of an outdoor rooftop garden bathed in natural light. A white plate in the foreground holds freshly picked zucchini blossoms with pale-green calyxes and partly unfurled orange-yellow petals, surrounded by whole zucchini, cucumbers, and more tomatoes, all framed by large green leaves. Behind the produce, a figure in a plain white T-shirt bends over a metal pot, stirring quietly in the faint ambient room tone.\n\nThe perspective shifts to an extreme close-up of a white ceramic bowl decorated with delicate blue floral motifs. Two cracked eggs rest inside, their yolks intact and glossy, until a wooden chopstick enters from the right and whisks them rapidly into a pale, frothy yellow liquid. As the mixture transforms, the narrator resumes in a steady, documentary tone: \"把菜园搬上屋顶的桂春对于怎么吃，同样有自己的想法。\" The viewpoint widens to a stable medium shot, situating the action on a portable gas stove. The patterned bowl now sits on a matching saucer beside a white plate holding closed zucchini blossoms and resting chopsticks. A large black wok on the burner releases wisps of steam while the cook’s right hand lifts a blossom and gently submerges it into the beaten egg, coating it thoroughly. The scene concludes under the same soft, even illumination, the low ambient hum and subtle utensil taps underscoring a contemplative, instructional rhythm that focuses entirely on texture, craft, and quiet culinary intention.","video_1_relative_path":"videos/8e546c7f7c85d789.mp4","video_2_relative_path":"videos/8e227473efe95435.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_6/00000031","text_prompt":"Cinematic food teaser, captured on a macro lens with a shallow depth of field that isolates the subject against a dark, out-of-focus background. The scene opens in an extreme close-up of stuffed bitter gourds suspended in vigorously bubbling dark oil, their pale white and light-green batter clinging to the wavy vegetable skin. A cool, bluish key light casts a nocturnal rim around the wok, contrasting sharply with the warm, appetizing golden tones developing on the food’s surface. A calm, friendly adult male voice with a mild northern Mandarin accent begins speaking over the constant, lively sizzling of the hot oil, stating, “焦黄色，特别好看。” (“Golden brown, especially nice.”). The camera holds steady as the batter slowly transforms, the oil popping and crackling rhythmically around the frying pieces.\n\nA hard cut shifts to a tighter macro view of a single piece resting on a matte blue plate, its crust now deeply caramelized and crisp, dotted with tiny black specks of pepper and glistening salt crystals. The narrator continues with a slight smile audible in his voice, instructing, “撒上椒盐,” (“Sprinkle pepper-salt.”), as the aggressive sizzling softens into a gentle residual hiss. The final shot reveals a generous pile of the finished gourds filling the frame, their textured surfaces catching the light. The male voice concludes enthusiastically, “然后一吃可香可香了。” (“Then once you eat it, it’s so fragrant, so fragrant.”), while the ambient audio fades to near silence, leaving only a faint room tone to underscore the sensory, appetizing conclusion.","video_1_relative_path":"videos/15937800caca741b.mp4","video_2_relative_path":"videos/ea35a92ddee74d4c.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only/voiceover/voiceover_6/00000059","text_prompt":"Documentary-style sequence opening on a tight, static close-up of a single lotus blossom in full bloom, its saturated magenta-pink petals grading to crimson at the base, each delicately veined and slightly curled. High-right sunlight catches the velvety surface with soft specular highlights while casting gentle shadows within the flower’s folds, and a blurred backdrop of emerald leaves and a conical seed pod creates an airy bokeh that isolates the bloom. A calm, neutral male Mandarin voice-over begins, stating \"一种美食才会在水下孕育。\" in a low-mid, measured documentary tone, underscored by a subdued orchestral bed of soft sustained strings and faint woodwinds that establishes a contemplative mood. The scene cuts to a water-level perspective, where the camera holds fixed yet carries a subtle handheld weight; ripples disturb the dark green surface, scattering light into shimmering patterns that mirror tall reeds and tree trunks, while a dark, out-of-focus shape casts a fleeting shadow across the frame. The ambient score remains restrained and serene as the sequence transitions to a high-angle aerial view of a broad water expanse under bright daylight.\n\nFour slender rowboats glide diagonally from upper left to lower right, each carrying silhouetted figures who propel them with synchronized strokes, leaving long wakes that intersect in V-shaped ripples sparkling against the deep teal-green water. The distant bank reveals a thin band of vegetation and softened structures, and the orchestral music swells slightly with warmth, balancing the natural ambience. Finally, a straight cut frames a lone man standing outdoors amid lush foliage, dressed in a crisp white short-sleeved shirt, dark trousers, and a neatly tied black neckerchief. His short hair shows graying at the temples, and he gazes directly into the lens with a composed, solemn expression, set against softly defocused greenery and hints of pale sky. The color palette shifts from vivid natural hues to cooler aquatic tones before settling into muted earth tones, mirroring a thematic progression from nature’s bounty to human reflection. The score sustains a gentle, reflective cadence as the image lingers, concluding the sequence with quiet resonance.","video_1_relative_path":"videos/25807d7aaad57272.mp4","video_2_relative_path":"videos/891681b2b58f5f39.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only/voiceover/voiceover_6/00000061","text_prompt":"A cinematic documentary sequence in a dense bamboo forest, rendered in rich saturated greens and earth tones with a shallow depth of field, opens on a low-angle macro shot of a single dark-purple-black bamboo shoot rising from the leaf-littered ground. Its tightly wrapped scales spiral upward, crowned by tiny brown bracts, while filtered sunlight creates soft, diffused illumination and gentle bokeh behind it. A calm, neutral male Mandarin voice-over begins, stating \"Early morning or late evening, the flavor is greatly diminished,\" accompanied by a quiet, atmospheric bed of traditional Chinese music led by a plucked guzheng and faint sustained strings. The scene holds this tranquil mood as a natural ambient hush lingers beneath the melody.\n\nA hard cut shifts to an extreme low-angle shot looking straight up between towering bamboo trunks toward a bright sky streaked with pale blue and wispy clouds. The camera tilts slowly upward, revealing the immense height of the stalks and rustling green fronds overhead, while a silhouetted forager in a broad straw hat glides briefly across the left foreground before exiting frame. Soft daylight flares gently at the top of the screen, enhancing the sense of depth. The perspective then settles into a medium close-up of the harvester, framed by two blurred bamboo stems in the foreground: a figure wearing a wide-brimmed woven hat, a grey zip-front jacket, and a red-and-white patterned scarf, bending forward with eyes fixed on the forest floor. As the narrator continues in the same measured, reflective tone, he adds, \"If you wait until overnight to eat it, it will already feel like another world.\" The guzheng motif repeats and gently tapers off, leaving a brief moment of near-silence that underscores the careful, seasonal rhythm of the harvest.","video_1_relative_path":"videos/f8a745e4db05cdff.mp4","video_2_relative_path":"videos/8ff0b11374a83918.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/movie/movie_1/00000090","text_prompt":"A cyberpunk-noir cinematic scene opens with a low-angle, street-level shot, bathed in deep blues and blacks with vivid neon and taillight reflections dancing on rain-slicked asphalt. A yellow taxi sits parked on the left, its rear wheel and lower body glistening under the downpour, while to the right, the silhouette of a figure in a long dark coat and high-heeled boots stands motionless near the curb. The soundscape begins immediately with a high-energy electronic track driving a four-on-the-floor kick, syncopated synth bass, and crisp hi-hats, layered over the dense hiss of heavy rainfall and the low, rolling rumble of distant city traffic. As the camera slowly pulls back and tilts upward, the taxi accelerates away, its tires carving through the pavement in a sharp spray while red brake lights bleed across the ground. A building facade emerges on the left, crowned by a bold red neon sign, as the departing vehicle’s engine rev briefly cuts through the mix before fading into the urban hum.\n\nThe pull-back widens into a sweeping vista, revealing a massive steel arch bridge spanning the sky and a tunnel entrance glowing with cool blue light in the distance. The figure raises a black umbrella with a faint metallic click and begins walking steadily away from the camera down the center of the street, heading toward the illuminated tunnel. Another yellow taxi disappears into the blue-lit throat of the tunnel ahead, leaving the first car swallowed by the shadows beneath the bridge. The electronic music continues its relentless, polished loop, dominating the auditory field alongside the steady, rhythmic patter of rain and the muffled resonance of the metropolis. The scene holds on the lone walker shrinking into the frame as the audio cuts abruptly to silence, leaving the journey unresolved and steeped in atmospheric tension.","video_1_relative_path":"videos/671b976ba8312a35.mp4","video_2_relative_path":"videos/599dd4a5c455492f.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/movie/movie_2/00000088","text_prompt":"A high-speed rear three-quarter tracking shot glides along a sun-drenched elevated highway, following a silver Pontiac Solstice convertible with California plate 7BBB97T as it tears forward before being swallowed by a cataclysmic fireball erupting from its left-rear quarter. Orange flames and thick black smoke billow upward as debris scatters, accompanied by a piercing metallic screech that instantly fractures into a thunderous, multi-layered explosion—a sub-bass boom layered with sharp mid-range snaps, high-frequency shatter, and sizzling crackle that drowns out all ambient noise. The camera cuts to a shaky handheld medium close-up on the bridge, framing a bald operative in a dark jacket leveling a rifle while a comrade stands partially obscured behind him, all set against a colossal plume of smoke and fire. Simultaneously, a woman with long dark hair, clad in a black leather jacket and tactical gear, tumbles backward through the pale sky. Her body rotates slowly, arms flailing, as a rushing wind sound modulates with her descent, building to a loud whoosh that culminates in a heavy, weighted thud and brief pavement scrape as she lands forcefully on all fours.\n\nAs the impact echoes, the burning Pontiac flips end-over-end down the ramp, triggering a secondary detonation marked by a deep concussive boom and cascading metallic tearing. The perspective shifts to a static wide shot, revealing the woman standing upright atop the bridge, silhouetted against the roaring inferno as embers and ash swirl around her. She raises her right arm triumphantly, framed by traffic lights, a green directional sign reading RIGHT LANE MUST TURN RIGHT, and the distant hum of urban life under clear skies. The camera pushes into a tight close-up of her face, protective goggles pushed up onto her forehead, her expression stern and focused. Beside her, a short-blond operative aims a scoped rifle forward, while teammates in matching tactical attire take cover with weapons raised. The scene holds on this coordinated standoff, underscored only by the residual hiss of burning materials, intermittent thermal pops, and the fading rumble of settling debris blending into the distant ambient city noise, leaving the air thick with tension and the raw aftermath of violence.","video_1_relative_path":"videos/bec2cbb2d0064719.mp4","video_2_relative_path":"videos/09fcfbe09a3e8746.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/movie/movie_3/00000018","text_prompt":"A high-octane action sequence opens with a high-speed, low-angle tracking shot hugging the rear driver-side wheel of a dark blue classic muscle car as it tears along the crest of a massive concrete dam under bright daylight. The tire spins violently against the rough surface, throwing a shower of sparks that match the relentless roar of the engine layered over a swelling, cinematic orchestral score driven by tense strings and sharp brass stabs. As the vehicle begins to skid sideways, the background dissolves into motion-blurred streaks of orange and yellow from trailing fire and explosion effects. A sudden, concussive boom erupts as a massive fireball detonates directly ahead, sending a wall of flames and debris toward the lens. The sound design peaks with shattering glass and a metallic crunch as the car collides with unseen obstacles, while the driver’s head jerks violently inside the cockpit.\n\nThrough the windshield, we see the driver—a man with curly hair in a black tank top—gripping the steering wheel, his jaw clenched and eyes wide with focused intensity. The perspective then pulls back to a sweeping aerial view, revealing the entire dam face engulfed in cascading explosions and thick plumes of smoke rising into a partly cloudy sky. The car tumbles end-over-end down the steep concrete slope, leaving a winding trail of fire and sparks as the camera rotates dynamically around the falling wreck to emphasize the chaos. Inside the cabin, smoke rapidly fills the space, swirling around the driver as embers drift past the glass. The seatbelt across his chest strains audibly, its red lettering catching the flickering light, while a sharp gasp escapes his lips. The orchestral score surges to a full-ensemble climax before abruptly cutting out, leaving only the diegetic sounds of grinding metal, deep rumbling detonations, and fading tire screeches.\n\nThe final moments lock into a claustrophobic interior shot as G-forces snap the driver’s head back, his mouth opening in a silent scream amid the choking haze. Wind noise and residual fire crackle through the wrecked cabin as the camera holds on his distressed expression, frozen in the inferno. The scene closes on this static tension, the saturated oranges and yellows of the flames contrasting sharply against the cool blue of the car and the gray concrete, leaving the audience suspended in the visceral aftermath of catastrophic failure.","video_1_relative_path":"videos/663ac4993109bcb0.mp4","video_2_relative_path":"videos/17e1f47268b5e9e4.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/movie/movie_3/00000024","text_prompt":"A high-octane cinematic action sequence unfolds under bright midday light, captured through a wide, slightly elevated tracking lens that establishes a vivid urban palette of steel, glass, and asphalt. Two high-performance machines—a red Corvette and a silver Mercedes-AMG GT—tear side-by-side down a dense multi-lane avenue, framed by tall buildings, leafy trees, and a blur of yellow taxis, a white-and-blue bus, and scattered pedestrians. The soundscape launches immediately with a driving hybrid orchestral score, its low synth bass and rapid staccato strings locked to metallic percussion hits that sync with the vehicles’ acceleration, while aggressive engine roars climb in pitch. The camera drops to a ground-level, head-on perspective between the lanes as the Corvette barrels straight toward the lens and the Mercedes sweeps past on the left. Overhead traffic lights glow green, storefronts streak into motion blur, and a yellow taxi flashes by on the right, all underscored by swelling brass accents and sharpening tire hiss that blend seamlessly with the mechanical growl.\n\nInside the Corvette, a medium close-up reveals the Black male driver gripping the wheel, his jaw set in focused concentration, while a woman with voluminous curly hair and a red leather jacket sits beside him, her tense gaze fixed ahead. Both are secured by black racing harnesses patterned with bold red logos, bathed in natural daylight filtering through the windshield as a deep, resonant engine hum vibrates through the cockpit. The focus shifts to an extreme close-up of a carbon-fiber center console where a hand firmly presses a prominent red ignition button. A crisp electronic chime and a sharp mechanical click cut through the mix, causing the score to dip momentarily before surging back as blurred city elements streak past the window. The perspective drops again to a low front angle of the silver Mercedes gleaming past a green commercial sign, its LED headlights bright and three-pointed star grille prominent, while a black muscle car with a massive rear spoiler and billowing exhaust tears along behind it.\n\nFrom a rear three-quarter angle, the muscle car accelerates into the distance before the camera cuts inside to reveal a bald man with a goatee, clad in a black jacket and silver chain, his hands firm on the wheel and his face taut with exertion. Heavy breathing cuts through the relentless roar of the engine and the driving rhythm of the score. The soundtrack swells to a fortissimo climax with cymbal crashes and a deep sub-bass layer, mirroring the escalating tension as wind rush and tire squeals punctuate the mix. Just as the sequence reaches its peak, a final burst of engine revs and a short, sharp metallic scrape echo through the frame, suggesting a dramatic maneuver or imminent collision that leaves the chase suspended in adrenaline-fueled motion.","video_1_relative_path":"videos/03dee75ced402449.mp4","video_2_relative_path":"videos/f20f2cb3dd2b9e9a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/music/music_1/00000004","text_prompt":"An intimate acoustic performance unfolds in a static medium close-up, bathed in warm, yellowish ambient light against a muted, cozy palette. The camera remains completely fixed on a young woman with fair skin and blonde hair pulled into a high ponytail, wearing large black-rimmed glasses and a black off-the-shoulder top. She sits centered in a dimly lit room, a light-colored acoustic guitar resting across her lap as her right hand strums rhythmically and her left fingers press the fretboard. To her left, a dark doorway recedes into shadow, while just beyond the frame on her right, a small blue-and-white penguin figurine hints at a lived-in domestic space. Her head tilts gently downward toward the instrument, eyes occasionally glancing at the strings, her expression conveying quiet concentration and emotional engagement as she sings.\n\nThe soundscape is stripped back and raw, featuring only her clear, mid-to-high-pitched female voice singing softly over continuous fingerpicked acoustic arpeggios. Delivered at a slow, steady tempo in a diatonic major key, the vocal and guitar interplay maintains consistently quiet dynamics, underscored by a mild natural reverb that suggests a modest, untreated interior. The recording environment is acoustically clean, with an extremely low noise floor and no discernible ambient hum, handling artifacts, or extraneous breaths, allowing the understated emotion and technical control of the performance to take center stage. The absence of editing or external sound reinforces the authenticity of the moment, framing it as a vulnerable, unpolished home demo meant for private listening.","video_1_relative_path":"videos/34ae161dcf579be8.mp4","video_2_relative_path":"videos/90c890e4cf8a1954.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/music/music_1/00000055","text_prompt":"A handheld medium shot captures two street performers standing on a city sidewalk before glass storefronts, bathed in even natural daylight that washes the scene in muted grays and earth tones, punctuated by the boy’s red Arsenal jersey and the woman’s light-wood acoustic guitar. The camera maintains a steady frame with a subtle handheld sway, gradually panning left to reveal a diverse crowd of passersby—a man in a blue cap, a woman cradling a baby, and others lingering or strolling past—while a smartphone on a tripod records the performance nearby. A small green tip sign reading “TAP CARD TO TIP $5 OR SCAN TO TIP” rests near the microphone stand as the woman, dressed in a sleeveless dark-gray knit top and black jeans with a red guitar strap, strums gentle chords with her eyes closed in concentration. A clear female lead vocal begins, singing the syllables \"Hallelujah,\" while the young boy beside her sings in harmony, his lips moving in time with the melody.\n\nThe audio environment is clean and intimate, dominated by the woman’s vocal and the boy’s matching harmonies delivered at a moderate, unstrained volume, accompanied by crisp acoustic guitar arpeggios that suggest close-miking in an open-air space. Faint urban hum and indistinct crowd murmur linger in the background without overpowering the music, creating a continuous, unedited moment where the performers’ focused expressions and the gentle sway of the camera align seamlessly with the steady rhythm of the song.","video_1_relative_path":"videos/28f4794d1dbab41f.mp4","video_2_relative_path":"videos/2c87feb7c21a3536.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/physics/physics_1/00000035","text_prompt":"Cinematic miniature diorama, static low-angle shot from floor level looking slightly upward into a warmly lit living room den. The frame is anchored by a large, ornate area rug dominating the foreground, its surface woven with intricate octagonal medallions in red, blue, cream, and black, filled with delicate floral and geometric patterns. Behind the rug, a raised wooden hearth supports a modern fireplace insert featuring a black glass front framed by brushed metal trim and gold accents. To the left, a tall dark-red bookshelf holds an assortment of books, picture frames, decorative objects, and a plush toy near its base, while additional shelving and a black pet bed sit further down the wall. Soft ambient light from unseen overhead fixtures casts gentle shadows, emphasizing the rich textures of the carpet and furnishings in a meticulously composed interior.\n\nA highly detailed scale model of a semi-truck tractor unit glides steadily into view from the right, traversing the patterned carpet toward the left edge. The vehicle’s cab is painted a deep blue accented with silver pinstriping and gleaming chrome bumpers, mirrors, fuel tanks, and exhaust stacks, while its chassis and front bumper assembly contrast in bright red. Small white LED-like headlights glow faintly against the rug, and the driver-side door panel displays crisp, legible markings: “KNIGHT HAULER” in white serif lettering outlined in red, followed by smaller regulatory codes reading “MC-4879472,” “USDOT 423849,” and “TA-96L 09-01.” As the truck rolls forward, a rich, immersive mechanical soundscape awakens, synchronized perfectly with its motion. A deep, rhythmic diesel engine rumble builds into a full-throated roar, layered with a high-frequency turbine whine and the subtle friction of tires rolling over carpet. Sharp, pneumatic air-brake hisses punctuate the journey, their volume swelling to a peak as the vehicle passes closest to the lens before gradually receding into a fading diesel echo as the truck exits the frame. Beneath the mechanical symphony, a quiet indoor room tone and a faint electrical hum maintain the atmosphere, completing a sonically dense, self-contained vignette that celebrates miniature craftsmanship and realistic scale.","video_1_relative_path":"videos/dde10cab5a71a403.mp4","video_2_relative_path":"videos/6dcff714b94dd1d2.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/physics/physics_1/00000051","text_prompt":"A meditative, documentary-style nature sequence opens with a static, tightly framed close-up of a European goldfinch perched delicately on the tip of a vibrant green leafy branch. Shot with a shallow depth of field against a heavily blurred, deep maroon backdrop, the composition isolates the subject in serene, sunlit clarity. Natural daylight washes over the scene, casting soft shadows and accentuating the bird’s vivid plumage: a bright red face bordered by crisp white and black markings, a warm buff-colored back, and wings defined by bold yellow bars and sleek black feathers. Its small, conical beak rests in a pale pinkish-grey hue, while the surrounding leaves show subtle signs of natural wear. The camera remains completely locked off, allowing the goldfinch to command the frame with quiet, organic life as it shifts its head slightly from side to side, blinks lazily, and subtly adjusts its posture on the branch.\n\nThe auditory landscape mirrors this stillness with a dense, unstructured chorus of high-pitched avian vocalizations, layering continuous chirps, trills, and short melodic phrases that vary naturally in pitch and rhythm. This lively, naturalistic ambience suggests a sun-drenched garden or woodland edge, placing the viewer in close proximity to active birdlife without any artificial enhancement, musical scoring, or human presence. The birdsong fills the foreground, creating an immersive, documentary-like atmosphere that complements the meditative visual portrait. As the goldfinch continues its gentle, silent movements, the overlapping calls weave a seamless tapestry of outdoor serenity, inviting a quiet appreciation of delicate avian detail within a vibrant, untouched ecosystem.","video_1_relative_path":"videos/ed2aff087dd5143f.mp4","video_2_relative_path":"videos/000f76392ece49d0.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/physics/physics_1/00000086","text_prompt":"A static medium shot holds steady on a powerful waterfall cascading from a rugged cliff face into a tranquil pool below, framed by a lush, verdant forest. Out-of-focus branches with vibrant green leaves hang in the immediate foreground, creating a natural vignette that draws the viewer into the hidden depths of the woodland. Diffuse, overcast light filters through the heavy canopy, casting soft shadows and bathing the scene in even, natural illumination. The camera remains completely fixed, capturing the unbroken, rhythmic descent of water without any cuts, zooms, or movement, emphasizing the meditative constancy of the landscape. The audio landscape is dominated entirely by the relentless, roaring rush of falling water, which fills the acoustic spectrum with deep, resonant rumbles where the cascade strikes the pool and sharp, high-frequency hissing from the rising mist. There is no wind, wildlife, or artificial noise to break the immersion, leaving only the raw, unvarnished energy of nature’s flow. This unwavering visual and auditory continuity crafts a serene yet commanding atmosphere, focusing all attention on the steady, hypnotic rhythm of the waterfall in its secluded, untouched environment.","video_1_relative_path":"videos/db64ead66cb7d38d.mp4","video_2_relative_path":"videos/5f1e3c41be61b7ae.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/physics/physics_2/00000026","text_prompt":"Cinematic first-person shooter sequence, rendered in realistic 3D with dynamic lighting and atmospheric particle effects. The scene opens in a dimly lit, overgrown ruin resembling an ancient mausoleum, bathed in muted greens and grays. Shafts of pale light pierce through broken arches overhead, illuminating floating dust motes that drift through the stagnant air. In the foreground, gloved hands grip a modern assault rifle adorned with orange skull decals as the camera advances slowly down a narrow stone corridor lined with crumbling pillars and creeping vegetation. A calm, confident male voice begins, stating \"From far away, trust me, I’ve got the angle.\" The words are barely finished when three sharp gunshots ring out, each report echoing sharply against the hard stone walls and accompanied by bright muzzle flashes. Dust kicks up around distant impact zones as bullet pings strike masonry, while spent shell casings eject with tiny metallic ticks.\n\nThe shooter continues forward, aiming down sights as two humanoid figures emerge from the shadows near the corridor’s end. The voice continues, steady and matter-of-fact, \"I have no qualms about this,\" just before unleashing a rapid burst of gunfire that sends the targets staggering and collapsing. The staccato rhythm of the weapon fills the space, punctuated by the mechanical clack of the bolt release and the heavy thud of a fresh magazine sliding home. As the chamber cycles back into place with a sharp metallic snap, the perspective smoothly shifts to a third-person view behind the soldier, revealing his full tactical gear: a dark hooded jacket, camouflage pants, and scuffed combat boots. He stands motionless in the center of the cleared corridor, weapon lowered slightly. A confident male voice concludes, \"This is my natural habitat, for the most part.\"\n\nThe tension dissolves into a low, atmospheric hum, leaving only the faint whisper of wind and the distant echo of the tomb. The controlled aggression of the engagement gives way to quiet stillness, the soldier holding his ground as the dust settles around his boots. The scene lingers on this moment of aftermath, capturing the raw, tactile sounds of the environment and the lingering weight of the ruin, before fading into silence.","video_1_relative_path":"videos/a1d84de814ecd63a.mp4","video_2_relative_path":"videos/937c6fdcfe37a150.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/physics/physics_2/00000039","text_prompt":"Cinematic wide shot, neutral lens, bright hazy daylight, and a pale washed-out palette frame an expansive body of water under a hazy sky, with the horizon line resting near the upper third to separate the deep blue surface from the pale atmosphere above. The camera remains completely still, emphasizing a meditative, observational quality as gentle undulations and small ripples create a patterned sheen across the water, reflecting the diffuse light. Faint, blurry silhouettes linger on the far horizon, suggesting distant vessels or structures, while the foreground remains entirely clear of landmasses or distinct objects. Layered over this tranquil, minimalist tableau is a persistent, industrial-natural soundscape. A steady, rhythmic mechanical cycle drives the audio, pairing a low-frequency thump or clunk with a higher-pitched metallic squeak or groan at roughly one to two beats per second, evoking the continuous operation of heavy marine machinery like a winch or pump engine. Beneath this hypnotic rhythm, a constant broad-spectrum rushing noise fills the space, consistent with wind sweeping across open water or the steady wake of a moving vessel. The volume and texture of both layers remain unwavering, creating a stark contrast between the visual stillness and the relentless mechanical pulse that anchors the scene’s sense of time, isolation, and quiet coexistence between technology and nature. The audio sustains its steady cadence until it cuts off abruptly mid-cycle, leaving the waterscape suspended in its unchanging, atmospheric rhythm.","video_1_relative_path":"videos/c04d6fb481456be3.mp4","video_2_relative_path":"videos/24637edea06fa3df.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/physics/physics_2/00000045","text_prompt":"Cinematic DIY intro sequence, shot with a prime lens and high-contrast lighting, opens on a dark, stylized title card where a rectangular glass-like panel edged in a glowing cyan border sits centered against a deep blue-black backdrop streaked by radial light beams fanning from the upper left. Bold, metallic teal letters spell out “MISCELLANEOUS” above a larger “MATT” inside the panel. A sharp, high-pitched metallic crack erupts, instantly triggering a rapid cascade of crystalline shattering sounds as animated shards explode outward from the center, scattering across the screen in a burst of white fragments. As the pieces drift and tumble, faint star-like particles glimmer in the background, accompanied by a brief whooshing air movement and a low, resonant boom that swells beneath the impact before decaying into silence. The screen momentarily dips to black, completing the transition.\n\nThe scene cuts to a bright interior room under construction, where natural daylight floods through two tall windows with brown wooden frames, casting soft, even illumination across white walls and a plain ceiling fitted with a bare spiral CFL bulb. In a stable, slightly upward-angled medium-wide shot, a bald, fair-skinned man with a short reddish-brown beard and a black fleece pullover stands on a silver aluminum step ladder. Behind him, a large pale-green steel I-beam spans horizontally just below the ceiling, secured by a perforated black metal bracket bolted to the wall. The man looks directly into the lens, his mouth moving in sync with a calm, conversational male voice that cuts through a faint, steady room tone. Gesturing with his right hand, he first points toward the overhead beam and then opens his palm outward for emphasis, stating, “I have a 32-foot extension ladder that I use twice a year to put up and take down.” The composition remains locked and unblinking, emphasizing the practical, hands-on atmosphere of the workspace as the clip concludes.","video_1_relative_path":"videos/c2e10ed8192235c5.mp4","video_2_relative_path":"videos/5d098a9d7a538b88.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/physics/physics_3/00000020","text_prompt":"Cinematic wide shot, static camera, pitch-black night sky with no foreground elements or horizon line. Two faint points of light hover near the center and lower left as a thin vertical streak of orange-yellow light ascends from the bottom edge, signaling the launch of a firework shell. The camera remains fixed, tracking the projectile’s upward trajectory against the void. A sharp metallic click cuts through the absolute silence, immediately followed by a low-frequency whoosh that rises quickly in volume before snapping off at ignition. At the peak of its ascent, the shell detonates mid-frame with a sudden, bright white flash that momentarily overexposes the image. In its wake, a dense cloud of fine, glittering particles erupts outward in all directions, forming an irregular spherical burst that glows intensely white-hot before cooling into pale blue and lavender hues as it expands. A loud, percussive boom dominates the soundscape, layered with high-frequency crackles that peak instantly upon the visual detonation and decay rapidly over a second, rendered dry and close-miked to emphasize raw explosive force without environmental reverb. As the first burst fades, a second firework launches silently from below, leaving a faint orange trail that cuts diagonally across the frame toward the upper right. Within moments, it explodes just above and slightly right of the previous center, producing a smaller but vivid display of brilliant white sparks that radiate sharply outward like starbursts, clearly defined against the dark backdrop. The two bursts overlap visually, creating a cascading effect of diminishing brightness, while a second, slightly softer explosion punctuates the silence with a sharper, higher-pitched report and rapid-fire crackling. The final event unfolds as a third firework ignites from the lower center, climbing vertically before bursting into a massive, symmetrical sphere of golden-white sparks that fills nearly half the frame. Radiant trails linger briefly, shifting the color palette toward warm amber tones during decay, accompanied by the loudest and most complex sonic event: a thunderous, bass-heavy boom fused with sustained sizzling and popping textures that taper off naturally over two seconds. As the last embers vanish, absolute silence returns, leaving only the empty night sky and a lingering sense of stark, kinetic release.","video_1_relative_path":"videos/73085e6bf77020bd.mp4","video_2_relative_path":"videos/4d9325acf9413ea7.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/physics/physics_3/00000075","text_prompt":"Cinematic nature documentary style, captured in a single uninterrupted aerial shot. The camera begins high above a powerful waterfall plunging down a steep, striated cliff face in a lush tropical gorge, slowly tilting downward in a smooth medium-wide descent. Dense green foliage and thick vertical vines cling to the left edge of the frame, while the right side reveals layered stone softened by heavy canopy shadows. Diffuse, overcast lighting washes the scene in even tones, eliminating harsh highlights and allowing the bright foam of the cascade to blend seamlessly with the muted greens and grays of the rainforest surroundings. No human presence or artificial structures break the natural composition.\n\nThe audio landscape mirrors the visual grandeur with a continuous, broad-spectrum roar of falling water that fills the stereo field, suggesting immense volume and proximity. Layered within this steady acoustic bed are intermittent, high-pitched bird chirps that cut through the noise floor, hinting at unseen avian life within the foliage. The space feels open and naturally dry, with minimal reverberation and a perfectly steady volume that never swells or fades. Together, the slow camera drift and the unbroken environmental soundscape create a cohesive, meditative immersion into raw, untamed nature.","video_1_relative_path":"videos/cd91ca340ae0eddf.mp4","video_2_relative_path":"videos/89cba9211e6bd479.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/podcast/podcast_1/00000001","text_prompt":"Cinematic presentation sequence, wide static lens, focused stage lighting, and a deep shadow palette open on a minimalist stage bathed in warm key light that leaves the surrounding audience area in darkness. The visual composition is anchored by a circular red rug and large, three-dimensional red stage letters to the left, while the backdrop features a dark wall embedded with hundreds of tiny, bright blue LED dots that evoke a quiet constellation. A female presenter, roughly in her thirties with shoulder-length curly light-brown hair, stands center stage dressed in a crisp white collared shirt with black piping, tailored black trousers, and dark shoes. As she begins her talk, her clear, mid-range General American voice cuts through the acoustically pristine, noiseless environment. She gestures with her right hand, palm open and moving gently downward, delivering the line, \"He was sitting hunched over on the ground wearing a onesie.\"\n\nThe camera executes a hard cut to a medium close-up, isolating her upper body and face while the blue LED backdrop dissolves into a soft, shallow depth-of-field blur. Maintaining an earnest, conversational tone, she raises her right hand toward the side of her head with fingers splayed to illustrate her point. Without breaking the shot, she lowers her hand and brings both palms into the frame, moving them slightly apart to emphasize her next phrase. Her steady pacing and articulate delivery continue as she concludes, \"Those are the kind of outfits that zip in the back,\" letting her hands rest gently at her sides as the scene ends. The audio remains entirely isolated to her voice, with no music, crowd murmur, or ambient interference, preserving the intimate, lecture-hall atmosphere throughout.","video_1_relative_path":"videos/3e143cd066522686.mp4","video_2_relative_path":"videos/cdec21e8d939ce4a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/podcast/podcast_1/00000043","text_prompt":"Cinematic breaking news broadcast, static medium shot, modern television studio defined by a bold red and black palette, bathed in bright, even lighting that casts soft reflections across the glossy floor. Framed center, a female news anchor with short brown hair stands in a sleeveless dark grey dress, a discreet microphone clipped to her neckline, holding a black tablet at waist level. Her expression is serious and focused as she delivers urgent safety instructions directly into the lens, her right hand moving with measured emphasis and her head tilting slightly to underscore the gravity of the moment. Behind her, a large digital screen projects a rotating red globe with concentric rings, while a window reveals a blurred nighttime city skyline. A calm, authoritative female voice with a British accent cuts through the silence, stating, \"Stay as quiet as possible. If caught out in the open, run. Do not walk, because they are much faster than they first appear. Do not confront them.\" The audio landscape remains deliberately sparse, stripped of music or ambient noise, leaving only the crisp articulation of her words, subtle breaths between phrases, and a faint, steady electronic hum typical of broadcast equipment. The overall mood balances professional composure with immediate danger, capturing a moment of controlled urgency as the anchor maintains her steady posture until the transmission concludes.","video_1_relative_path":"videos/9f6e96252bb0b2c2.mp4","video_2_relative_path":"videos/c92776bcce441556.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000030","text_prompt":"Cinematic documentary sequence captured in wide and medium lenses, bathed in bright, hazy morning light that casts gentle highlights on metallic fabrics and wraps distant peaks in an ethereal haze. The palette leans into earthy golds, lush greens, and muted blues and purples. The scene opens on a sweeping vista of terraced rice paddies climbing rolling green mountains, where golden-yellow stalks sway in a soft breeze. In the foreground, two young women in ornate bronze-brown tunics trimmed with vivid turquoise and white embroidery stand side by side, their braided hair pulled back as they work with calm concentration. One steadies a thick bundle of freshly cut rice while the other lifts a small curved sickle to slice through the stems. Further up the terraces, other harvesters move methodically in straw hats and dark jackets, while on the upper left edge a man in a white T-shirt kneels beside a tripod-mounted camera, documenting the labor. Beneath this image, a soft, slow-tempo instrumental track led by plucked pentatonic strings resembling a guzheng or koto, accompanied by faint bamboo flute harmonies, begins to play at a steady sixty to seventy beats per minute without percussion. A mature male narrator in standard Mandarin speaks over the music in a calm, declarative tone, stating \"百分之五。\"\n\nThe camera drops to ground level within the field, where out-of-focus stalks blur the lower frame as it tilts upward to follow two older women working close to the lens. They wear dark long-sleeved tops and light grey headwraps, with intricate colored bands decorating their collars and cuffs. One woman bends deeply to cut and bundle rice, then straightens to offer a warm smile toward the camera before resuming her task. Behind them, successive ridges of mist-veiled mountains fade into a pale lavender sky. The narrator continues in a measured, documentary cadence, his voice carrying subtle warmth as he explains that \"但大山里的人们仍然播撒着祖传的种子，与糯稻相互依存。\" The gentle music persists without interruption, maintaining a serene atmosphere that mirrors the rhythm of the harvest.\n\nThe final shot opens on an elevated, static panorama overlooking the entire valley, where dozens of harvesters dot the terraces beneath a washed-out, almost white sky. Foremost on the right, a woman in a striped shirt and broad white hat carries a baby strapped to her back in a patterned cloth sling, pausing briefly to look across the fields. The instrumental motif sustains its calm cadence until the scene concludes, leaving only the natural ambience of rustling leaves and distant mountain air, completing a visual arc that moves from individual labor to collective landscape.","video_1_relative_path":"videos/7b42de28e4d99da5.mp4","video_2_relative_path":"videos/9bb7d4e9144ff48f.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000049","text_prompt":"A warmly lit dining scene captured in rich, appetizing tones, dominated by warm oranges, reds, and greens under directional key lighting that highlights food textures and creates glossy highlights on sauce and shells. Shot with a shallow depth of field, the sequence begins with an extreme close-up of a deep-orange cooked crab filling the frame, accompanied by a soft, slow-tempo instrumental bed of gentle piano arpeggios and sustained strings that sets a contemplative and refined mood. A calm, neutral male Mandarin voice-over begins, stating “今天的人们很难做到物尽其用。” The camera then cuts to a side-profile medium close-up of a young East-Asian man wearing brown-rimmed glasses and a dark polo shirt with a lighter collar. He leans forward, lifts a piece of crab meat toward his mouth with his right hand, and bites down while subtle chewing sounds remain faintly audible beneath the continuous music. The background stays softly blurred to emphasize the intimate act of dining, with a white porcelain teapot and part of a dish resting quietly on the table at frame left.\n\nA straight cut transitions into a series of smooth, deliberate lateral pans across elegantly plated dishes arranged on a light-colored tablecloth. The camera glides over a round white plate displaying neatly fanned green beans topped with sautéed mushrooms and slivers of red chili, its rim adorned with delicate red-and-green floral motifs. Continuing rightward, the shot reveals a rectangular white plate holding a mound of pale rice or cauliflower florets garnished with tiny diced red peppers and green onion rings, accompanied by a sculpted translucent amber jelly sphere on a wire stand and a small purple edible flower. The motion settles on a shallow oval bowl filled with whole braised crabs whose lacquered shells gleam under the warm lighting, accented by a fresh sprig of green leaves. … a measured male Mandarin voice …: “一直以来，蟹都是中国餐桌上极有地位的美食。” The mellow music and narration hold their reflective pace, allowing the lingering view of the braised crabs to close the sequence as both audio and visual elements fade out together.","video_1_relative_path":"videos/718cbbe20cb5ee39.mp4","video_2_relative_path":"videos/75f9f5a2ecad6a01.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000050","text_prompt":"A nature-documentary sequence opens on a tranquil river landscape bathed in soft daylight, captured with a calm, wide establishing shot and an earthy green-and-yellow color palette. Tall yellow-green rice stalks sway gently in the foreground, giving way to a broad, mirror-like river that reflects a pale blue sky mottled with thin white clouds. Rolling hills dense with verdant trees stretch across the horizon, and a small tree-covered island rests in the middle distance while two tiny dark figures sit in a narrow boat gliding slowly from left to right. A gentle, low-volume ambient score of sustained string-like pads and faint piano arpeggios begins simultaneously, setting a reflective mood as a calm, neutral male Mandarin narrator begins his measured delivery: \"Compared to the past, people today rarely get to eat wild river crabs.\" The camera remains static, holding the expansive, lush scenery under even natural light while the subdued music underscores his steady, documentary tone.\n\nThe scene cuts to a medium-long tracking shot from behind the shoreline vegetation, following a single man in a light straw conical hat and dark short-sleeved shirt as he rows a long, narrow wooden boat away from the camera. The view then shifts to a very low angle skimming the water’s surface, where ripples and reflections of the cloudy sky and green island dominate the frame as the boat passes overhead, leaving a faint wake. A hard cut plunges the viewer underwater into a dim, bluish-green world where suspended particles drift through the murky water, shifting the palette to cool teal and muted browns. An extreme close-up fills the screen with the textured, grey-brown carapace of a large river crab, its formidable claws tipped with off-white flecked brown framing the composition. As the crab’s eyes blink slowly and minute ripples pass over its shell, the narrator’s voice returns with a brief, declarative emphasis: \"River crab.\" The background music swells slightly but remains subordinate, maintaining the clean, atmospheric soundscape as the shot holds steady on the crab’s subtle movements and drifting sediment, contrasting the vast open environment with this intimate, hidden habitat.","video_1_relative_path":"videos/65654012b69d1cb4.mp4","video_2_relative_path":"videos/d23f2491e666d85a.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000091","text_prompt":"Cinematic documentary style, shallow depth of field, natural lighting, and a subdued cool-earth color palette that shifts to vivid accents. The sequence opens with a close-up bathed in soft daylight from camera-left, holding on the weather-worn face of an elderly East Asian woman. Her deeply lined skin is framed by a green-and-yellow patterned headscarf and a black-beaded choker with white buttons, establishing a rustic coastal atmosphere against a pale grey concrete wall. A calm, neutral male voice in standard Mandarin begins a steady, measured narration, stating, \"Excessive industrial fishing once caused the ecology near Lanyu to continuously deteriorate, only easing slightly a few years ago.\"\n\nThe camera cuts to a second close-up, maintaining the intimate framing and soft natural light. Another elderly East Asian woman in a light-blue T-shirt gazes downward with a pensive expression, while a third woman in a yellow head covering and floral blouse smiles faintly in the softly blurred background. The narrator’s voice continues, carrying the quiet weight of the region’s environmental history, while the soundscape remains almost entirely silent, focused solely on his clear delivery.\n\nA wide, static shot reveals a modest two-storey wooden house perched on a rocky hillside, where two figures in white and blue shirts stand on an open balcony, gazing toward the horizon. Low stone walls, a tarp-covered structure, and distant green mountains stretch beneath a muted pastel sky at the edge of dawn or dusk. As the narration concludes, the scene shifts to a brightly painted traditional boat resting on dark, wet rocks at the shoreline. Its red hull and white gunwale are adorned with intricate geometric patterns and feathered carvings crowning each bow. Gentle waves lap softly against the stones, producing a faint, rhythmic splash that blends seamlessly with the tail end of the voice-over. The sea glimmers under a partly cloudy sky, grounding the moment in a quiet, reflective mood.","video_1_relative_path":"videos/2db868db1be15f2d.mp4","video_2_relative_path":"videos/2e1b64c2f3298e13.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000093","text_prompt":"A soft, slow-tempo instrumental bed of sustained strings and a faint plucked zither-like timbre fades in at low volume, setting a contemplative, documentary tone. The opening frame holds a tight close-up of a middle-aged man with short dark hair, light stubble, and sunglasses resting on his head, dressed in a white ribbed T-shirt and a red-white-blue beaded necklace. Backlit by daylight streaming through an opening behind him, he raises a small golden-brown food item to his mouth, biting into it and chewing thoughtfully while gazing slightly off-camera. A calm, measured male Mandarin narrator begins, stating \"简单的食物，本真的生活。\" The camera then cuts to a wider shot inside a modest open-air dwelling with unfinished concrete walls and a timber-beam roof, where three people sit cross-legged on the floor around a low metal bowl lined with broad green leaves holding several steamed root vegetables in yellow and dark purple hues. An elderly woman in a floral blouse and multicoloured headscarf peels a piece while a younger man in a blue cap watches attentively, and the first man, now in blue trousers, sits to the right observing the meal beside a white oscillating fan. An overhead close-up follows, focusing on weathered hands lifting a peeled yellow tuber from the leaf-lined bowl, the warm vegetable tones contrasting sharply with the deep green leaves and metallic sheen as the gentle score sustains its quiet flow.\n\nThe scene shifts to a close-up of an elderly man wearing a blue T-shirt and grey baseball cap, his deeply wrinkled face filling the frame as he brings a piece of the yellow tuber to his mouth and eats with evident satisfaction. The same calm, reflective male Mandarin narrator continues, adding \"离大海最近的爷爷，深深懂得与自然的相处之道。\" The camera then transitions outdoors to a sun-washed concrete pier or seawall overlooking calm blue water under a clear sky, where a black goat with long curved horns lies stretched out facing the horizon, occasionally chewing cud while other goats rest softly in the distance. Shot with a palette of natural earth tones, candid documentary lighting, and straightforward straight cuts, the sequence alternates between intimate close-ups and wider contextual frames, maintaining a seamless rhythm that mirrors the narrative’s shift from personal reflection to broader environmental harmony, leaving a serene coastal tableau as the final visual impression.","video_1_relative_path":"videos/e3ec5ac108416bd0.mp4","video_2_relative_path":"videos/1d285daa190afa2c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ltx_only2/voiceover/voiceover_1/00000125","text_prompt":"Cinematic nature documentary sequence, shot on a 35mm lens with shallow depth of field and a palette of rich greens and earth tones with high-contrast backlighting, opens with a tight, low-angle close-up of a dark-green hiking boot pressing onto a damp, moss-covered log inside a bamboo forest. The sole’s deep tread and flecks of earth are crisply rendered while the background foliage melts into creamy bokeh. A gentle, slow-tempo instrumental score led by warm plucked strings reminiscent of guzheng or pipa begins immediately, establishing a calm, reflective mood accompanied only by faint rustling leaves. A hard cut reveals an extreme low-angle view looking straight up through slender bamboo trunks toward a bright sky, where strong sunlight streams through to produce lens flares and silhouette a figure in a wide-brimmed straw hat stepping into frame with a long-handled tool. The camera remains static, letting the contrast between the dark foreground silhouette and the luminous canopy dominate the image as distant birds chirp softly beneath the music.\n\nAnother cut shifts to a wider, still low-angle shot that now includes two foragers ascending a steep, leaf-littered slope among towering green stalks, both wearing traditional conical straw hats and practical work clothes while one grips a silver T-shaped digging pole and the other balances a woven basket on his back. Their figures are partially veiled by backlighting, creating a sense of depth and labor as a calm, documentary-style male voice in Mandarin begins, stating \"A month later, the thunder-shoot season ends.\" The camera tracks at eye level as the pair move deeper into the grove, sunlight dappling their clothing and the ground while the man with the pole leads and the basket-carrier follows closely. The narrator continues with steady cadence, adding \"The culinary story belonging to the mountain people,\" before a high-angle shot focuses on the forest floor where the lead forager plants his metal pole beside a lush shrub dotted with fresh green shoots amid dry brown leaves. The narrator finishes the thought, his voice imbued with quiet optimism to conclude, \"is just beginning.\"\n\nThe final shot returns to a medium view of the second forager walking along the path, framed by dense vertical bamboo stems, wearing a dark jacket over a striped shirt and carrying his basket while his face remains shadowed by the brim of his hat. The camera tracks gently with him as he disappears into the verdant corridor, and the narrator falls silent, leaving only the subdued instrumental theme, light woodwinds, soft percussion, and gentle forest ambience to underscore the scene. Shot with deliberate low angles and backlighting to emphasize the height and density of the bamboo, the sequence evokes a quiet reverence for traditional mountain life and the seasonal rhythms of the forest.","video_1_relative_path":"videos/596943be4be47e41.mp4","video_2_relative_path":"videos/901d8f1952d2c9f8.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000009","text_prompt":"Cinematic medium shot, late afternoon sunlight, and a muted European palette establish an intimate mood as a single continuous camera tracks backward at a steady pace, keeping a man and woman centered while they stroll side-by-side down a tree-lined sidewalk. A shallow depth of field softly blurs stone façades, awnings, and passing pedestrians, isolating the subjects in crisp focus. The man, with short brown hair, a light beard, a dark gray blazer, and a cream patterned shirt, walks slightly ahead on the left. Beside him, the woman wears a textured cream jacket over a black top, her blonde hair in a ponytail, a brown shoulder bag resting at her hip. They converse with animated ease, their expressions shifting between mild surprise, quiet affirmation, and wry amusement. A calm, neutral female voice begins the exchange, stating, \"December 16th.\" as she turns her head toward him with raised eyebrows. He glances back, nods once, and replies with a mildly surprised tone, \"She died that day?\"\n\nSeeking clarification, he asks, \"The one in Budapest?\" to which she confirms with a small nod and a faint smile, gesturing lightly with her right hand as she says, \"Yes. You remember that?\" He responds with a playful shrug and an open palm, his confident tone carrying, \"Yeah, I remember everything.\" She tilts her head, a knowing smirk playing on her lips, and teases, \"Of course, it was in your book.\" Throughout the conversation, the audio remains strictly naturalistic, with no musical score to distract from the nuanced vocal delivery. A low-level bed of ambient city sounds—distant traffic rumble, steady footfalls on pavement, the subtle rustle of fabric and leaves brushing in the light wind—fills the space beneath their close-miked dialogue. The atmosphere feels intimately conversational, anchored by their shared gaze and the quiet resonance of a shared memory tied to a funeral date and a published book.","video_1_relative_path":"videos/a852b3bbe3f838bb.mp4","video_2_relative_path":"videos/a3bcac802dd1c702.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000032","text_prompt":"A cinematic sequence opens in a steady medium-long shot, establishing a muted palette of greens, browns, and greys under warm, low-key lighting that spills from near the camera and soft daylight from a far doorway. The setting is a dim, narrow hallway where the left wall is rough, pale-grey plaster and the right is lined with vertical dark wood paneling. A small potted plant rests on a low stand beside stacked cardboard boxes with bright yellow, pink, and red flaps, while a black plaque bearing the number 108 is fixed to the left wall. In the foreground, a young girl in a light-grey hoodie emblazoned with a circular “Anywhere Anytime” logo, black backpack straps, and a red-and-black plaid shirt knotted at her waist grips the handle of a black wheeled suitcase. She looks down anxiously, her slight tremor evident as she asks, “Are we really out of money?”\n\nWithout a cut, the camera begins a gentle forward tracking move, keeping both figures centered as they advance. Behind her walks an adult woman in her early thirties, dressed in an olive-green oversized hoodie with multicolored block letters, distressed blue jeans, a black cross-body bag, and a white tote slung over her shoulder. She supports herself with a second black rolling suitcase while balancing a large brown cardboard box under her left arm, her expression a careful blend of reassurance and mild exasperation. Responding to the child’s worry, she answers firmly yet soothingly, “How could that be? This is a historic building, over a hundred years old. Not everyone gets to live somewhere like this.” The ambient soundscape remains strictly diegetic, filled only by the soft scuff of footsteps on the hard floor and the faint, rhythmic rattle of suitcase wheels.\n\nThe pair passes close to the lens, momentarily filling the frame before pivoting right to begin ascending the stairs. The camera tilts upward to follow their backs, settling into a rear three-quarter view as they recede toward the brighter doorway at the top landing. A single suitcase wheel clacks against a stair tread, echoing softly in the quiet space. The image holds on their upward movement, the contrast between the confined, shadowy hallway and the natural light at the top landing underscoring a quiet passage from uncertainty to hope, grounded entirely in the intimate realism of their shared journey.","video_1_relative_path":"videos/b7717e20f1b5b10e.mp4","video_2_relative_path":"videos/68f79df8c72d1da1.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000036","text_prompt":"A cinematic medium close-up, eye-level shot opens in a dimly lit workspace, focusing on two women seated side-by-side at a desk. The woman on the right wears a light-blue tweed jacket with gold buttons and large silver earrings, her dark hair pulled into a high ponytail. She looks down intently at a laptop, then lifts her gaze toward her colleague while speaking. A calm, professional female voice begins, stating \"There’s also our non-fiction account.\" Her tone remains calm and explanatory as she continues, \"The second shift of the working woman. I wrote this one.\" Behind them, slightly out of focus, a man in a light green button-down over a white tee holds a small clear vial with a gold cap between his palms, examining it closely, while another person in a mustard-yellow knit cardigan stands partially visible at the frame’s edge. Soft, directional light from above-left casts gentle shadows that highlight fabric textures, and the audio remains strictly intimate, capturing only the subtle rustle of clothing and the crisp cadence of her speech.\n\nA hard cut transitions to a wider, static medium shot revealing six individuals gathered around a cluttered desk in an industrial-style studio with exposed concrete walls. From left to right, a young woman in glasses and a cream sweater holds a light-blue clipboard, a man in a purple-and-green windbreaker over a beige graphic tee leans forward, and another in a plaid shirt and sage-green jacket stands with hands clasped. The man in the green shirt rests his chin on his fist, while the woman in the blue jacket listens with arms crossed. Seated at the desk, the speaker in a black top gestures with her right hand under the glow of a white articulated lamp that illuminates scattered laptops, pens, cables, and papers. A red \"No Smoking\" sign is mounted on the back wall. She addresses the group with a directive but conversational tone, \"So, just the five of you manage these two accounts?\" A brief pause follows before she clarifies, \"Actually, three accounts.\" The room remains acoustically dry and still, with only her voice and the faint tap of fingers on the desk breaking the silence, underscoring the focused, collaborative atmosphere of the team.","video_1_relative_path":"videos/3c589e9898043167.mp4","video_2_relative_path":"videos/6257d64fd5587e52.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000080","text_prompt":"An indie-romance tracking shot glides at eye level along a sun-dappled park path, bathed in the warm, low-angle glow of late afternoon. The palette leans into rich golds and deep greens, casting soft shadows and gentle highlights on the faces of a man and woman walking side-by-side toward the camera in a steady medium two-shot. The man, sporting light-brown hair, a short beard, a dark blazer, and a patterned white shirt, turns slightly toward his companion and asks, “Okay, what about reincarnation?” His tone is curious and lightly teasing. The woman, with shoulder-length wavy blonde hair, a black sleeveless top featuring delicate lace straps, and a brown shoulder bag, answers immediately and firmly, “Not at all.” She keeps her gaze fixed ahead, her expression neutral but certain. A faint rustle of leaves and the soft crunch of footfalls on the pavement underscore their quiet walk.\n\nWithout breaking stride, the man follows up with a quick, playful “God?” delivered with a rising intonation, to which the woman instantly replies, “No,” still perfectly composed. The man’s face soon breaks into a broad smile; he laughs softly, glancing down before looking back at his companion. Her stern demeanor melts into a small grin as she begins to laugh, her shoulders relaxing in shared amusement. “That sounds terrible,” she chimes in, her voice light, before adding with emphatic repetition, “No, no, no.” Turning her head toward him with a more open smile, she raises an animated hand—palm outward, fingers splayed—and says, “But at the same time, I don’t want to be one of those people that don’t believe in any magic.” Her voice carries a warm, earnest lilt. The man listens attentively, nodding slightly with his eyes fixed on her, as the camera continues its smooth advance and the natural conversation flows beyond the frame.","video_1_relative_path":"videos/8b9eaeab489ff9cc.mp4","video_2_relative_path":"videos/8089555500fec2dc.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000085","text_prompt":"A steady medium two-shot captures a sun-dappled residential path bathed in late-afternoon light, where a man with light-brown hair and a short beard, dressed in a dark-gray blazer over a pale yellow patterned shirt, walks beside a woman with shoulder-length wavy blonde hair wearing a black lace-trimmed sleeveless top and carrying a brown shoulder bag. They move slowly toward the camera in a continuous, gentle push-in, their figures sharply focused against a backdrop of lush foliage and soft red blossoms rendered in creamy bokeh. As they stroll, the woman turns her head slightly, her brows raised in tentative inquiry, and asks, \"What if we were to die tonight?\" Her voice carries a reflective, gently earnest quality, while the ambient soundscape holds only a faint outdoor hush and the soft rhythm of their footfalls on the pavement.\n\nThe man glances at her with mild amusement before looking ahead again, his mid-range voice carrying a light, teasing lilt as he replies, \"What, like if the apocalypse was coming?\" Her eyes widen briefly, a small half-smile flickering across her face before settling into thoughtful seriousness. She shakes her head once, lips pursed, and answers in a calm, reflective cadence, \"No, no, that’s too dramatic,\" as his eyebrows lift in gentle curiosity. Continuing their leisurely pace, a passerby in a red T-shirt crosses the mid-ground behind them, momentarily blending into the verdant scenery. The woman’s tone softens, tinged with quiet vulnerability, as she finishes her thought, \"But what if, you know, just the two of us were going to die?\" The man’s expression settles into contemplation, offering an almost imperceptible nod. The camera maintains its unhurried forward drift, preserving the intimate, philosophical weight of their exchange as natural daylight filters through the canopy and their conversation lingers in the still air.","video_1_relative_path":"videos/92c079fc40434d29.mp4","video_2_relative_path":"videos/b705d740643232a5.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_1/00000089","text_prompt":"A static medium two-shot frames a man and a woman seated on a dark-green, curved-back metal park bench, surrounded by lush, softly blurred foliage under diffused daylight that casts even, shadowless illumination. The woman, positioned on the left, turns slightly toward her companion, her right hand lifting near her chest as she begins to speak with a clear North-American accent, an earnest expression, and raised eyebrows as she asks, “When it comes to dirty talk, what specific word would you like to hear?” A faint rustle of clothing accompanies her gesture, while the quiet outdoor ambience remains barely audible, keeping the focus entirely on their intimate exchange.\n\nThe man, seated on the right in a grey blazer and speaking with a relaxed North-American accent, listens attentively with his head angled toward her and one hand resting near his lapel. He responds with a calm, slightly amused tone, giving a small nod as he says, “Right? You know exactly what I mean. Like me?” He lifts his right hand to lightly tap his blazer before offering a gentle outward sweep of his palm, his delivery playful and inquisitive. The woman’s gaze softens into mild surprise, her brows lifting higher as she holds her pose and listens closely. He continues seamlessly, “Well, yeah. For example, what specific word would you like to hear?” punctuating the question with a steady, open gesture. The camera remains fixed, preserving the tranquil, cinematic stillness of the scene as their candid, flirtatious conversation unfolds in the quiet, shaded park.","video_1_relative_path":"videos/e871dc33f6b3e627.mp4","video_2_relative_path":"videos/58a7377dc2ac08cf.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_10/00000007","text_prompt":"A minimalist domestic drama opens in a fixed, wide shot of a bright, modern open-plan kitchen and dining area, bathed in even, soft daylight streaming through a large window behind the counter. The color palette leans toward neutral creams, whites, and muted earth tones, establishing a relaxed morning atmosphere. A woman in her late twenties or early thirties stands at a rectangular wooden table draped with a white floral tablecloth, wearing a cream sleeveless knit vest over a sheer lace-sleeved top, light blue jeans, and pink slide sandals, her dark hair tied in a loose bun with short bangs. With a furrowed brow and one hand resting on the tabletop, a subdued, slightly complaining female Mandarin voice with a mid-high pitch begins, stating \"我心里面不舒服啊。\" Behind her, a man in his early thirties with short black hair, dressed in a brown turtleneck sweater and dark trousers, leans casually against the kitchen counter with his hands in his pockets, watching her with a concerned expression.\n\nThe static wide framing holds as the man steps forward slightly, tilting his head to ask in a calm, gently curious male Mandarin voice with a mid-low pitch: \"这为什么呀要这样？\" His measured delivery emphasizes genuine confusion. The woman straightens up, still looking uneasy, and briefly glances toward him before returning her gaze to the table, while a faint appliance hum underscores the quiet room. A hard cut then shifts to a medium two-shot from a slightly higher angle, tightening the focus on their upper bodies and revealing more kitchen details: a green microwave covered with a white lace cloth, glass-front cabinets displaying wine bottles and jars, and hanging mugs on a blue-and-white rack. The woman exhales audibly, her voice shifting to a brisk, impatient female Mandarin tone as she gestures sharply toward an unseen pot and flicks her wrist in dismissal: \"行了，去把馄饨帮我盛出来，快去快去。\" The man’s eyebrows rise, he nods once in acknowledgment, but remains silent.\n\nThe frame holds on this medium close-up as both characters freeze momentarily in their positions—the woman’s hand suspended mid-gesture, the man beginning to pivot as if to leave—before cutting abruptly to black. Throughout the sequence, the camera work remains minimalist and spatially continuous, prioritizing interpersonal tension over visual dynamism. Natural daylight mixed with overhead fixtures casts soft shadows and maintains balanced exposure, while the deliberate absence of non-diegetic music or sound effects keeps the focus squarely on their subtle facial expressions and the quiet emotional weight of the exchange.","video_1_relative_path":"videos/bc93294aeb7f806b.mp4","video_2_relative_path":"videos/42df2b7a7d440910.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_10/00000013","text_prompt":"Cinematic office drama, shot on a static camera with a classic shot-reverse-shot rhythm, bathed in soft, diffused daylight filtering through large windows to establish a cool, neutral palette of navy, black, and crisp white, with minimal shadows and a faint HVAC hum grounding the quiet space. The frame opens over the shoulder of a woman with long dark-brown hair in the left foreground, focusing on a middle-aged man occupying the right half of the shot. He stands with a serious, authoritative bearing, his short hair greying at the temples and a trimmed goatee accentuating his focused expression, while wearing a navy-blue suede-textured blazer over a black turtleneck. Behind him, closed white horizontal blinds soften the ambient light. A mid-low pitch, authoritative male Mandarin voice begins, stating “洪总那边呢？”\n\nThe shot cuts to a medium close-up of the woman, revealing her upright posture and crisp white collared shirt beneath a black blazer, accented by a loosely tied black-and-white patterned neckerchief. Large windows behind her blur into an out-of-focus city skyline, with a potted green plant adding a subtle touch of life to the professional atmosphere. Facing slightly left toward him, she meets his gaze with a composed yet earnest expression. A calm, earnest female Mandarin voice replies, “洪总的事情我有错。” The camera returns to the man’s perspective, where he raises his eyebrows slightly, his steady tone shifting to firm reassurance laced with restrained annoyance. A steady, reassuring male Mandarin voice continues, “不是你的错。要怪就怪那个小新办事不力。”\n\nCutting back to the woman’s close-up, she listens intently, her eyes holding his with a blend of caution and fairness. Her measured Mandarin voice drops slightly at the end as she proposes a solution. A measured, conciliatory female Mandarin voice proposes, “要不你把她换了吧？这事真不能全怪小新。” The static framing emphasizes the unspoken tension of workplace accountability and managerial hierarchy, leaving the ethical weight of the exchange hanging in the softly lit room. The audio remains clean and focused, with consistent speech levels and negligible background noise, allowing the nuanced delivery of each line to carry the scene’s emotional subtext until the frame holds on her resolute expression.","video_1_relative_path":"videos/8aa0550e25c8a7f3.mp4","video_2_relative_path":"videos/cd50511c3e0f2d65.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_10/00000050","text_prompt":"A nocturnal intimate drama shot on a static medium close-up with a shallow depth of field, rendered in a muted earth-tone palette against a dark cabin interior. Soft, cool dashboard illumination carves a chiaroscuro contrast across the driver’s face, while blurred green-blue streetlight reflections drift across the side windows. The driver, an East-Asian man in his thirties wearing a brown ribbed turtleneck beneath a dark textured jacket with a fleece collar, rests his right hand on the steering wheel. A calm, measured male Mandarin voice, strained with regret, begins, stating \"But back then, I couldn't stand on your side, otherwise Dad would have suffered for life.\" The cabin remains quiet save for a low, steady engine hum.\n\nA straight cut shifts to the front-seat passenger, an East-Asian woman in her late twenties with short black hair, blunt bangs, and pearl drop earrings, dressed in a beige-and-grey plaid coat over a white collared blouse. She looks toward the driver with downcast eyes and pressed lips, a weary, resolute female Mandarin voice responding, stating \"Alright, I understand.\" She then lowers her gaze, inhales quietly, and raises her eyes again with a subtle tightening around her mouth, the same female voice softening but remaining firm as she continues, asking \"Anyway, from now on, let's just stop talking about Dad, okay?\" The man remains silent, his presence anchored by the unbroken framing and the faint reflection in the rear-view mirror, which subtly underscores the weight of unresolved family history. Muted earth tones and dark cabin shadows dominate the palette, punctuated only by the occasional neon-green and blue highlights of passing traffic, while the restrained performances and intimate nocturnal setting convey a profound sense of private vulnerability and lingering resentment.","video_1_relative_path":"videos/80147fa556adb3cf.mp4","video_2_relative_path":"videos/f813cc3f71673a68.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_10/00000059","text_prompt":"Cinematic corporate drama, shot on a 50mm lens with a static medium framing and a single clean cut to an over-the-shoulder reverse shot. The scene is bathed in cool, diffused overcast daylight filtering through large office windows and horizontal blinds, casting a low-contrast glow over a muted palette of charcoal, slate, and crisp white. In a minimalist high-rise office, a middle-aged East Asian manager sits behind a dark wooden desk, his chest framed in a steady shot. He wears a tailored charcoal suit with a dark tie, his short hair neatly combed with silver at the temples. A black leather notebook and a stack of white papers marked with red-and-black charts rest on the desk before him. Initially clasping his hands, he leans slightly forward, his steady gaze fixed off-screen right as a barely audible room-tone hum fills the quiet space. A calm, mid-low resonant male Mandarin voice begins, stating “Do you really believe your strategy is without flaw?”\n\nThe camera cuts directly to an over-the-shoulder view of the woman seated opposite him, her long wavy dark hair softly blurred in the foreground. She sits upright in a black leather chair, dressed in a dark plaid blazer over a crisp white collared shirt and a black turtleneck. A slim pen rests between her fingers as she meets his gaze with a small, confident smile. A clear, mid-range female Mandarin voice replies, “It is flawless.” Her expression then deepens with earnest resolve, and she shifts subtly in her seat, her delivery slowing with a gentle downward cadence as the female Mandarin voice continues, adding “Words are useless; we can only let next month’s sales figures speak for themselves.” The ambient soundscape remains virtually silent, save for her speech and a soft intake of breath, leaving the two professionals locked in a tense, unspoken exchange against the sober backdrop of the corporate suite.","video_1_relative_path":"videos/9cca84bae00973fb.mp4","video_2_relative_path":"videos/4224f563cfae964c.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_11/00000023","text_prompt":"Cinematic medium-wide shot, locked off at eye level, captures a brightly lit modern Chinese restaurant bathed in warm, even light from hexagonal pendant lamps and soft daylight filtering through large windows. The color palette balances muted browns, cool blues, and vivid red against neutral whites, with a round table draped in a white lace-patterned cloth anchoring the foreground. A young girl with twin buns sits with her back to the camera, quietly eating, while an adult woman in a brown ribbed sweater and trousers arranges utensils nearby. Beside her, a man in a blue-and-white plaid shirt layered under a light beige quilted vest raises a glass half-filled with pale liquid and turns toward a waiter approaching from frame right. The waiter, clad in a red short-sleeved uniform with ornate gold trim and dark-rimmed glasses, holds a flat brown tray and leans forward with a polite smile. The man addresses him in Mandarin with a mildly confrontational tone, his voice cutting clearly through the soft murmur of restaurant chatter: “程大少，你在这儿干嘛？”\n\nWithout a cut or camera movement, the man lowers his glass, exhales audibly, and continues with a sighing, exasperated inflection: “唉，别提了，戴维那个孙子把你裁了之后，这摊子事就彻底乱了套。” He gestures lightly with his free hand, maintaining steady eye contact as the waiter nods sympathetically and opens his mouth to reply. The woman continues adjusting plates, occasionally glancing between the two men, while the child remains absorbed in her meal. Faint cutlery clinks and distant dishware taps underscore the casual dining atmosphere, grounding the scene in a low-level ambient realism that highlights the underlying workplace tension and the man’s frustrated resignation. No music or electronic tones interrupt the natural soundscape, leaving the focus entirely on the spoken exchange and the quiet, observant presence of the surrounding patrons.","video_1_relative_path":"videos/da8cca22d5698d3f.mp4","video_2_relative_path":"videos/72d94cebb368b186.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_11/00000093","text_prompt":"A mid-century Hong Kong period drama unfolds in a dim, warmly lit restaurant, captured through a shallow depth of field and static framing that isolates a middle-aged East Asian man in a dark suit seated at a small round table. Warm tungsten tones from a pleated table lamp cast amber light across his neatly combed hair and pensive expression, creating high contrast against deep shadows and rich blues and browns in the surrounding décor. In a calm, low-pitched male Mandarin voice, he leans slightly forward and asks, “喝一点吗？” (“Will you drink some?”). Simultaneously, a sparse, melancholic piano-and-string underscore begins at a barely audible level, establishing a reflective, suspended atmosphere devoid of any diegetic restaurant noise.\n\nThe camera shifts to a gentle over-the-shoulder composition, revealing an elegant young East Asian woman across from him. She wears a dark blue cheongsam patterned with light blue floral lace, her coiffed hair framing a warm, accommodating smile as she gazes at him. Between them rests a white plate of food, a bread roll, a clear bottle of reddish-brown liquor, two crystal snifters, and a slim white vase holding pink flowers. A gentle, mid-range female Mandarin voice replies, “陪你喝一点。” (“I’ll drink a little with you.”). The man lifts the bottle and carefully pours the amber liquid into her glass, the lamplight catching its flow. He then turns toward her with polite humility and quiet gratitude, a measured, humble male Mandarin voice continuing, “我们在香港熟人不多，经常麻烦你。” (“We don’t know many people in Hong Kong, so we’re always troubling you.”). The woman listens attentively, her hands resting near her glass, maintaining a courteous smile as the understated musical motif persists.\n\nThe static framing holds steady on the man as he finishes his sentence, his eyes softening to acknowledge their shared circumstance and quiet solidarity. The camera lingers on this intimate tableau, emphasizing the period aesthetic and the unspoken bond between two outsiders relying on each other’s company. The background music trails off imperceptibly, the absence of ambient sound and minimal camera movement reinforcing the contemplative mood until the scene fades to black.","video_1_relative_path":"videos/a5be73786cc38016.mp4","video_2_relative_path":"videos/b9b43861c6bfff9b.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_11/00000097","text_prompt":"Cinematic drama, captured on a 35mm lens with a shallow depth of field, opens on a tense, somber nighttime scene in a dimly lit dirt clearing beside a quiet rural road, bathed in the chiaroscuro contrast of two tall lampposts that cast warm pools of light while leaving the surroundings in deep shadow. A vintage dark sedan with chrome trim sits parked at an angle, its period details and distant picnic tables evoking a mid-twentieth-century atmosphere. A middle-aged man in a light long-sleeved shirt and trousers leans over the driver-side front fender, his brow furrowed and jaw set as he inspects something near the hood ornament. From behind him, April, a blonde woman in a pale short-sleeved blouse and matching skirt, stands with her hands resting loosely at her sides, watching him with guarded concern. The air is thick with isolation, broken only by a faint low-frequency hum of distant traffic and a sharp metallic click from the car’s latch. A strained, defensive male voice with a North American accent speaks in a low, measured tone: “Don’t look at me like that, April.”\n\nThe camera shifts to a medium shot of April standing alone beside the passenger door, her shoulders sagging as her expression softens from tension into weary pleading. In the distance, the soft glow of approaching headlights sweeps across the dusty ground, growing brighter and casting long, uncertain shadows that heighten the suspense of an impending change. She lifts her gaze toward the unseen man, her voice subdued yet insistent, carrying a gentle rise-and-fall intonation that underscores her quiet desperation: “Could we please go home now?” The scene holds its heavy, intimate atmosphere as the ambient hum continues beneath her words, leaving the unresolved tension and relational strain hanging in the cool night air until the frame fades.","video_1_relative_path":"videos/9b474301334c33a2.mp4","video_2_relative_path":"videos/1cb36284a799126f.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_2/00000015","text_prompt":"A naturalistic, character-driven drama opens on a medium, eye-level shot of a man and woman seated side by side on the deck of a small boat drifting slowly along a calm river in central Paris. Diffuse daylight from an overcast sky casts soft, shadow-free illumination across a palette of muted earth tones, while a shallow depth of field keeps the pair in sharp focus against a softly blurred backdrop of stone embankments, leafy trees, café umbrellas, and strolling pedestrians. The man, a Caucasian in his early middle years with short brown hair, light stubble, a dark-grey suit jacket, and an open-neck white shirt, leans toward his companion with earnest intensity. A reflective, mid-low pitched male voice begins, stating, \"I mean, what is love, right? If it isn’t respect, trust, and admiration?\" His tone grows impassioned as he punctuates the words by opening his arms wide before drawing them back toward himself.\n\nThe woman, a Caucasian in her late twenties with shoulder-length wavy blonde hair and a sleeveless black lace dress, remains perfectly still, her gaze lowered and lips pressed as she absorbs his words. A brown cross-body bag strap rests across her shoulder, and beside her on the boat’s rail, a red lifebuoy catches the muted light, subtly echoing the quiet tension of the moment. As he finishes his thought, the man lowers his hands, briefly brushes the back of his head, and exhales with a soft, breathy vulnerability. A slightly breathy, vulnerable male voice continues, adding, \"And I felt all those things,\" before trailing into a quiet sigh that hangs in the riverside air. She does not respond, maintaining her introspective posture as the camera holds locked off, capturing only the gentle sway of the boat and the subtle ripples on the water. The scene lingers on the unresolved emotional weight of his confession, leaving the intimate conversation suspended in the hushed, ambient hum of the city.","video_1_relative_path":"videos/bb4c2994284121b6.mp4","video_2_relative_path":"videos/99023b6cf1aae167.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_2/00000034","text_prompt":"Cinematic drama, shot on a 35mm lens with warm natural daylight and a shallow depth of field that isolates the subjects against a muted earth-tone palette of beige façades, cream clothing, and a dark green jacket. The scene opens with a medium-long rear tracking shot gliding behind a young woman and man as they walk away down a narrow, cobblestoned European street lined with wrought-iron balconies. The woman, her blonde hair gathered in a loose up-do, wears a cream textured jacket over a dark top and carries a brown shoulder bag, while the man beside her is dressed in a light open-collar shirt. Distant traffic hums and faint city chatter fill the air, but their voices quickly take precedence. The woman, sounding contrite, states, “You must have been so angry with me. I’m so sorry.” She briefly lifts her right hand toward his shoulder in a gentle, apologetic gesture before the camera cuts to a static medium two-shot facing them side by side.\n\nNow standing still, they turn slightly toward one another as the woman raises both hands near her chest, her earnest expression searching his face for forgiveness. The woman, earnest and rising in intonation, continues, “I really wanted to be there, more than anything in the world.” The man listens, brows knitted and mouth parted, before the man, his voice quick and emphatic, interjects, “Honestly, I swear.” He flashes a small, placating smile with his palms half-raised. The woman, urgent and overlapping, pleads, “You can’t be angry, my grandmother was unwell and I had to stay by her side.” Their words overlap slightly, underscoring the tension of the moment. The man leans forward, shaking his head lightly as his frustration melts into understanding. The man, rapid and reassuring, softens his tone, “No, I know, I know. I honestly thought that something like that might have happened.”\n\nThe woman lowers her hands but holds steady eye contact, absorbing his words as pedestrians drift past behind them and a dark serif storefront sign remains visible on the left. The shallow depth of field keeps the focus tightly on their synchronized body language—raised hands, leaning in, softened expressions—emphasizing intimacy amid the public space. Muted earth tones in their clothing and the surrounding architecture are subtly punctuated by a parked blue car and a distant red awning, adding quiet vibrancy without distracting from the emotional core. Ambient street sounds persist at a low level, framing their unresolved yet conciliatory stare as the scene settles into a tentative, mutual resolution.","video_1_relative_path":"videos/0da4812c448051ad.mp4","video_2_relative_path":"videos/457d22dd987f80b0.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_2/00000048","text_prompt":"Late-1990s independent cinema aesthetic, captured on a steady gimbal tracking shot with a shallow depth of field. Neutral fluorescent lighting washes over a spacious transit concourse, balancing warm wardrobe tones against the cool blues of polished floors and ticket counters. A young man with shoulder-length wavy brown hair, a light goatee, and a maroon turtleneck strides toward the camera from screen right, a tan canvas messenger bag slung over his left shoulder. Beside him walks a young woman with long wavy blonde hair in a brown sleeveless dress layered over a white shirt, a small black handbag resting on her arm. The camera holds a medium two-shot at eye level as they move through the softly blurred crowd of travelers and rolling suitcases. The woman glances up, her expression bright and inquisitive, and asks, “What’s your name?” The man turns his head, smiles, and replies with mild surprise, “My name?” He adjusts his bag strap as they walk.\n\nThey slow to a halt near a blue service window beneath a blurred “Ticket Office” sign. The man sets his bag down, rummages briefly, then looks back with an easy grin. “It’s Jesse,” he says, his tone casual and friendly. “It’s James actually, but everybody always calls me Jesse.” The woman listens attentively, nodding once and smiling wider. She tilts her head playfully, her curiosity teasing, and finishes the thought, “You mean Jesse James, don’t you?” The man’s smile lingers, awaiting her next remark. The camera holds the intimate two-shot as ambient station chatter and the low rumble of footsteps fill the space, leaving their exchange open and charged with the quiet promise of a developing connection.\n1990年代末独立电影的美学风格，以稳定手持云台拍摄的跟镜头呈现，景深较浅。中性荧光灯照亮宽敞的交通枢纽大厅，温暖的衣着色调与光洁地面及售票柜台的冷蓝色调形成平衡。一位留着及肩波浪棕色头发、面带浅色山羊胡、身穿酒红色高领毛衣的年轻男子从画面右侧朝镜头走来，左肩斜挎着一个米色帆布斜挎包。他身旁走着一位长发波浪状的金发女子，身着棕色无袖连衣裙，内搭白色衬衫，手臂上搭着一只小巧的黑色手提包。镜头以平视角度保持中景双人镜头，两人穿行于模糊的旅客人群与滚动的行李箱之间。女子抬头望向镜头，神情明亮而充满好奇，问道：“你叫什么名字？”男子侧头微笑，略带惊讶地回应：“我叫什么？”边说边调整背包肩带，继续前行。\n\n他们缓步停在一处蓝底服务窗口前，上方“售票处”标识已模糊不清。男子放下背包，稍作翻找后回头露出轻松的笑容：“我叫杰西。”语气随意而友善，“其实我叫詹姆斯，但大家都叫我杰西。”女子专注倾听，轻轻点头，笑容更盛。她调皮地歪了歪头，带着几分戏谑的探究意味，补了一句：“你是说‘杰西·詹姆斯’吧？”男子笑意未散，静静等待她的下一句。镜头持续定格在这亲密的双人画面，周围车站的背景人声与脚步低语交织，将这段对话衬得意味深长，仿佛一段悄然萌芽的情感正悄然酝酿。","video_1_relative_path":"videos/e42c305b46dff8a0.mp4","video_2_relative_path":"videos/f42dd1b30f5473c5.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_3/00000010","text_prompt":"A static medium close-up captures an intimate, vlog-style scene of two young Korean men seated side by side indoors, bathed in soft, warm frontal lighting that casts minimal shadows against a heavy dark red curtain backdrop. To the left, a black mesh office chair holds a small red-and-white mushroom prop, while the man on the left wears a red zip-up jacket with white shoulder stripes and a silver Puma logo. He has short dark brown hair and begins speaking in Korean, his tone light and teasing as he gestures toward his companion: \"이건 너무 살이 잘 보인다.\" The man on the right, sporting light brown highlighted hair, layered necklaces, a small hoop earring, and an off-white long-sleeved shirt with vertical black lettering, listens attentively with his mouth slightly open, eyes tracking the speaker.\n\nThe left speaker lowers his hand, briefly glances forward, and continues in a conversational, amused cadence: \"나. 이거.\" The right subject reacts with a subtle head turn and a soft, questioning interjection in Korean: \"어디? 언제?\" The left man raises his palm outward again, smiling as he asks with rising intonation: \"아, 이거?\" Instantly, the right subject breaks into a sharp, high-pitched laugh, tilting his head back and opening his mouth wide in spontaneous amusement. The exchange is underscored by a quiet, unobtrusive room tone with only the faint rustle of clothing and natural breathing, keeping the focus entirely on their relaxed expressions and the steady, conversational framing. No camera movement occurs, preserving the intimate atmosphere as the scene closes on their shared, lighthearted reaction.","video_1_relative_path":"videos/5bafe79a95db5590.mp4","video_2_relative_path":"videos/19f682f3a69f7a43.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_3/00000042","text_prompt":"Cinematic domestic drama captured in a single continuous take, framed in a static medium-wide shot that holds steady throughout. The scene unfolds in a warmly lit living room bathed in a palette of soft yellows, beiges, and muted purples, with beige curtains draping a window behind three figures, a floor lamp casting a gentle glow to the left, and an air-conditioning unit resting quietly on the right. A woman in a bright yellow dress steps forward to firmly grasp the arms of a man in a purple jacket layered over a white graphic tee, attempting to restrain him as he flails and steps backward toward a beige sofa. His face is tense, mouth open mid-shout, while a man in a grey hoodie, initially seated to the right, rises with a concerned expression to intervene. A calm, neutral female Mandarin voice urges, \"曾老师，坐下，坐下，平静点。\" while an agitated male voice protests, \"不行，我还是要离开这里，我办不到。\"\n\nThe camera remains fixed as the physical struggle intensifies; the man in the grey hoodie steps in, placing both hands on the central figure’s shoulders and chest to physically hold him in place. The woman maintains her grip, her tone shifting to steady reassurance as she repeats, \"没事了，没事了。\" The man in the grey hoodie interjects with a calmer but insistent Mandarin voice, \"曾老师好了好了。\" The audio landscape is stripped bare of music or environmental hum, relying entirely on the raw overlap of speech, the sharp intake of breath, and the soft rustling of fabric as bodies shift and resist. Lighting stays constant, the composition unbroken, and the scene closes on the three figures locked in motion, their gestures of restraint and comfort clashing with the central man’s unresolved agitation, leaving the tension suspended in the quiet room.","video_1_relative_path":"videos/d8868210b13eac2e.mp4","video_2_relative_path":"videos/d3326c844a75c48c.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_3/00000094","text_prompt":"A mythic fantasy scene opens in a static wide shot, 16:9 aspect ratio, where warm amber lantern light clings to thick iron chains and collides with cool blue-purple accents on the characters’ garments. A colossal red-orange sigil, carved into the rocky back wall and glowing like stylised flames or serpentine dragons, pulses faintly with latent energy, while floating embers drift lazily upward through the heavy air. Centre-left, a man in a lustrous indigo robe trimmed with gold stands with his hair bound in a high topknot, one hand resting on the hilt of a long sword at waist height. His brow is furrowed, eyes fixed downward toward a circular stone altar ringed by tiny dragon-head reliefs. To the right, a second figure remains perfectly still, cloaked in dark fabric edged with pale trim, face obscured by a mask, hands clasped before him. A low, sustained musical drone underscores the silence as the robed man lifts his gaze slightly and asks gravely, “小妖真的投炉而死了?” His voice is deep and resonant, heavy with disbelief and sorrow.\n\nThe hooded figure answers without hesitation, “对,” delivered in a flat, matter-of-fact tone that cuts through the cavernous reverb. A single metallic chime rings out, sharp and bell-like, punctuating the exchange before the background music settles back into its subdued, tense hum. The robed man lowers his eyes again, jaw tightening as the masked speaker continues with measured cadence, “今日剑成，阿难不堪忍受痛苦，跳炉而死.” Each clause is separated by deliberate pauses that let the weight of the news settle, accompanied only by the subtle rustle of fabric and the faint crackle of ambient fire. The camera never moves, keeping the two figures balanced against the monumental carving, while a moderate depth of field softly blurs the glowing sigil to keep focus on the foreground. The colour palette of crimson, violet, and charcoal reinforces the mythic atmosphere, and the scene closes on the final syllable as the low drone fades, leaving only the isolated, sacred stillness of the forbidden chamber.","video_1_relative_path":"videos/6e4d36b0ec7dd468.mp4","video_2_relative_path":"videos/d1085ebfb0dc4063.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_4/00000005","text_prompt":"The scene opens in a static, eye-level medium-wide shot inside an open-air wooden pavilion overlooking lush greenery and distant traditional architecture. Soft morning light filters through sheer beige curtains trimmed with red fabric and gold tassels, casting a warm, diffused glow across the space. Three figures are seated around a round, dark-wood tea table set with a dark ceramic pot and cups. On the left, a young woman in layered cream robes with a red sash leans forward, her head bowed toward the table. In the center, a man in a white outer robe over grey garments sits upright, while to his right, another woman in a lustrous dark-blue robe clasps her hands on the tabletop, her gaze fixed on him. The shallow depth of field gently blurs the background foliage, keeping the focus tightly on the trio and their ornate, embroidered Hanfu-style garments. A faint rustle of silk fills the quiet air, underscored by a barely audible low electronic hum. A curious, slightly playful female voice in Standard Mandarin breaks the stillness, stating, “是不是？”\n\nWithout any camera movement, the central man lifts his eyes to meet the women, his expression shifting from pensive to faintly amused. In a calm, mid-low male voice colored by mild irony, he replies: “是啊，经过你们俩细心的安排，这个火花可大了。” As he speaks, he makes a small, deliberate outward sweep of his right hand above the teapot to emphasize the careful planning behind their words, the subtle swish of fabric accompanying the gesture. He stresses the final word with a hint of wry satisfaction before letting his hand settle back onto the table edge. The ambient hum persists as the lighting remains constant, holding the frame in a composed, intimate tableau. The restrained performances and quiet exchange suggest a confidential moment where a carefully orchestrated plan has successfully ignited a significant spark, leaving the three figures suspended in contemplative silence.","video_1_relative_path":"videos/b105fa805094ffcf.mp4","video_2_relative_path":"videos/d0efa02cb45ec1c9.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_4/00000016","text_prompt":"A xianxia fantasy scene unfolds in a static medium-wide shot of a spacious, high-ceilinged hall of dark wood, where heavy patterned teal-green curtains frame an open balcony overlooking a bright daytime panorama of rolling hills and scattered buildings beneath a pale blue sky. Warm candlelight from wall sconces casts soft amber highlights across the polished floorboards, blending with the natural daylight to create a balanced exposure and gentle shadows in a color palette of deep teals, blacks, and warm ambers. From frame left, a woman in an elaborate black robe densely speckled with tiny silver glints strides toward the center, her long straight black hair gathered in a tall up-do secured by ornate red-and-black hairpins and a single red flower ornament near her temple. The faint rustling of silk and light footfalls echo in the cavernous interior as she stops just short of mid-frame, turns her head leftward, and fixes her narrowed eyes with restrained anger. In a firm, accusatory female Mandarin voice, she states, \"你好大的胆子。\" (How bold you are.), her posture rigid and shoulders squared against the subdued hush of the hall.\n\nWithout breaking her stance, she pivots fully to face the entrance, planting her feet shoulder-width apart and lifting her right hand palm-up in a gesture of admonishment as she continues in a scolding register, adding, \"居然敢闯往生池。\" (You actually dared to trespass into the Pool of Rebirth.). At that moment, a man enters from the left edge, his layered pale cyan-blue robes over white flowing as he moves. His long dark hair is tied back with a simple cord, and his composed yet tense expression softens only slightly as he halts two meters opposite her, hands loosely clasped before him. The locked-off camera maintains a symmetrical composition, emphasizing the visual contrast between her dark, glittering attire and his pale garments, while the reverberant acoustic of the hall amplifies the tension. He responds in a calm, measured male Mandarin voice, his tone mildly defensive as he states, \"其实左护法知道我在假寐。\" (Actually, the Left Guardian knows I was merely pretending to sleep.). The scene settles into a quiet standoff, the sparse diegetic sounds of fabric and breath lingering in the air, leaving the confrontation suspended between the intimate gravity of the interior and the boundless daylight beyond the balcony.","video_1_relative_path":"videos/da27bf694556921b.mp4","video_2_relative_path":"videos/6e80b93a66bc007a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_4/00000084","text_prompt":"Cinematic historical drama, locked-off medium two-shot in 16:9, bathed in even daylight that casts gentle shadows across a spacious courtyard paved with pale stone tiles. The color palette leans into muted grays, whites, and deep greens, punctuated only by the vivid red frames of three large drums resting on wooden stands against a gray-stone palace wall, with ornate eaves and pillars hinting at an imperial complex beyond. Two men walk side-by-side toward the camera. The younger man on the left wears layered white-and-gray robes embroidered with cloud motifs, his half-tied dark hair secured by a small gold hairpin; his brow is furrowed, lips pressed, and shoulders squared, radiating quiet tension. Beside him, the older man in a dark teal-green brocade robe keeps his gaze lowered before lifting it to address his companion. A soft, low-volume traditional instrumental underscore, featuring a plucked zither-like timbre and faint wind ambience, establishes a restrained, serious atmosphere. The older man, speaking in a cautious, mid-low Mandarin tone, asks, “这火烛的事儿，咱不给他弄大了吗？”\n\nThe younger man listens without breaking stride, his breathing shallow, before inhaling and turning his head fractionally to reply. His voice is a calm, lower-pitched baritone, deliberate and slightly dismissive, carrying the weight of impatience as he states, “几支火烛被动了手脚，算不得什么大事。” He tightens his jaw, signaling resolve, while both men continue their steady advance deeper into the courtyard. The camera remains fixed, framing them in a formal, tableau-like composition that emphasizes the solemnity of their private counsel. The background stays static save for a distant figure in dark garb who briefly crosses behind the drums, reinforcing the guarded nature of the compound. The sparse musical motif sustains its slow, minor-key progression without rhythmic change, while the muted score and barely audible footsteps on stone leave no room for crowd noise or ambient intrusion. As the conversation concludes, the music fades imperceptibly, leaving the pair walking forward into the unresolved tension of the palace grounds, the untouched drums standing as silent witnesses to latent authority and impending ceremony.","video_1_relative_path":"videos/556ab3097b65de86.mp4","video_2_relative_path":"videos/14ee11e9dd28e732.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_5/00000023","text_prompt":"Fantasy school drama scene, static medium-close shot, shallow depth of field, soft even frontal lighting casting faint shadows against a brown textured wall of large rectangular tiles. Three young men in matching purple uniforms with silver epaulettes, double-breasted buttons, and high collars stand together, the crest on the rightmost figure’s chest displaying a gold-and-silver shield topped with a golden sun over a blue wavy band. The man on the right lowers his gaze, brow furrowed, lips pressed in concern, while the central figure cradles a small light-wooden device adorned with a yellow cord and a turquoise-green charm that glows faintly green. A low, tense orchestral underscore of sustained minor-string notes fades in as a male with a mid-to-high tenor voice, speaking in urgent, slightly breathy Standard Mandarin, states, \"就醒过来了。\" The central figure looks up with widened eyes, then glances down at the wooden device, his expression shifting from surprise to anxious agreement.\n\nThe rightmost figure lifts his head, turns fully toward his companion, and raises both hands to chest level with palms open and fingers splayed, his tone growing more emphatic as he continues, \"这样听起来问题还是很大。\" He nods once, jaw tightening, and adds with resolute conviction, \"我觉得要把米雅星的状况告诉费斯特校长。\" The central figure listens intently, brows knitted, while a partially visible third man on the far left remains motionless, observing in silence. The camera stays locked off, holding the shallow focus on their faces and subtle hand movements, allowing the restrained string score to sustain its subdued tension without swelling. The three hold their positions for a beat, the unresolved atmosphere and lingering musical note underscoring the gravity of the situation before the scene fades to black.","video_1_relative_path":"videos/93ac0cd2876d20f1.mp4","video_2_relative_path":"videos/81b48d0898302c01.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_5/00000027","text_prompt":"A locked-off cinematic medium shot frames two young men in matching dark-purple school-style uniforms standing side by side against a wall of large, textured brown tiles resembling stone blocks, captured in a symmetrical composition under even, soft frontal lighting that eliminates harsh shadows and establishes a studio-like clarity. The color palette balances deep purples with warm earth tones, evoking a fantasy-academy atmosphere. On the left, a young man with neatly styled black hair leans forward on white forearm crutches, dressed in a white shirt, a black-and-white diagonal-striped tie, and a purple blazer with white piping, a light-blue cylindrical container strapped to his right hip. He turns urgently toward his companion, placing his right hand firmly on the other’s shoulder as a faint swell of dramatic orchestral strings begins to rise beneath the scene.\n\nA strained young male voice in Mandarin speaks with urgent pleading, stating, “这是梦骑士，阿力波波，你不要再说了。” Delivered in one continuous, breathless cadence, the line is accompanied by the speaker leaning closer, eyes wide and brows raised, mouth open mid-shout. Beside him, the second young man—shorter-haired, bespectacled, and adorned with yellow circular epaulets and an ornate gold-and-blue crest on his left chest—keeps his gaze fixed downward, lips pressed together and shoulders drooping in subdued resignation. The orchestral score deepens with low brass pads and sustains minor-key chords, heightening the emotional tension as the first man finishes speaking and eases back slightly while maintaining physical contact. The second man briefly shuts his eyes and tilts his head, signaling inner turmoil, before the image holds steady in a frozen frame, the symmetrical composition and neutral lighting preserving the raw interpersonal dynamic until the scene concludes.","video_1_relative_path":"videos/514c913d5db5d299.mp4","video_2_relative_path":"videos/c07df4ae8812a47e.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_6/00000027","text_prompt":"A cinematic medium-wide shot captures three adventurers standing in a loose triangle within a dark, humid cave, its rough stone walls dotted with small green plants and hanging vines. The scene is lit by a high-contrast juxtaposition of saturated emerald-green and neutral white beams, casting deep shadows across the damp stone. On the left, an early-thirties man in a black leather hooded jacket and silver-buckle belt raises a cylindrical object that glows an intense emerald-green, bathing his face and shoulder in that hue while leaving the cavern in deep shadow. In the center, a young woman with long brown hair tied in twin pigtails, wearing an olive-green utility vest and fingerless gloves, tilts her head upward toward the light, a playful smile lifting her cheeks. She speaks in a lively, teasing Mandarin voice, remarking, \"这么浪漫的地方，就你扫兴。\" To her right, a late-twenties man in a khaki-green field jacket over a pale shirt, with a backpack slung behind him, keeps a standard flashlight trained forward, its white beam cutting diagonally across the frame to illuminate floating dust motes.\n\nThe ambient soundtrack is sparse, underscored only by a steady, low-level hum and the soft, rhythmic drip of water echoing off the stone. The man on the right maintains a vigilant posture, his eyes narrowed as he scans the unseen depths, and responds in a calm, measured Mandarin tone with a slight downward inflection: \"越是漂亮的地方，越不能大意。\" Without missing a beat, the woman leans a fraction closer, her expression softening into warm, amused admiration as she replies in a lighter, affectionate Mandarin voice, \"小哥哥，你好有危机意识哦。\" The emerald glow flickers subtly but holds steady, reinforcing the tension between the scene’s romantic allure and its latent peril. The camera remains static, keeping all three figures framed symmetrically against the damp darkness, frozen in a moment of tense anticipation as their respective lights carve out their roles—guide, mediator, and sentinel—amid the quiet subterranean stillness.","video_1_relative_path":"videos/9c0b2985ad4d1134.mp4","video_2_relative_path":"videos/64936d06dfcc4f06.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_6/00000066","text_prompt":"A static medium two-shot frames a brightly lit, modern kitchen-dining set defined by a turquoise wall tiled with alternating blue and light-green squares. Behind the characters, a silver microwave, a pink-and-white thermos, snack jars, and a black metal shelf holding a potted plant, purple orchids, and a brown dog figurine establish a cheerful, sitcom-like backdrop. Seated at a white table laden with plates of fried rice and small bowls are a young woman with long dark hair, wearing a white T-shirt emblazoned with a colorful BUILDERS SUPPLY graphic and large yellow earrings, and a young man with short dark hair in a blue denim jacket over a black tee. Two white ceramic mugs sit between them, the woman’s marked with a bold black H and the man’s with an X. High-key, evenly balanced lighting eliminates shadows, keeping the focus sharp on their expressions and props. The man turns toward the woman, speaking in a mildly teasing Mandarin tone, stating, \"我去了你怎么办？\" As he finishes, a brief swell of canned studio laughter underscores his delivery before fading. The woman’s eyes widen slightly; she turns her head, pursing her lips in mock indignation as her posture straightens to meet his banter. She launches into a rapid, defensive reply, shaking her head and raising an eyebrow while gesturing lightly with one hand. Delivered in a higher-pitched, animated Mandarin voice, she insists, \"谁眼眶红了？我那是给学生改作业，眼睛充血。\" A second wave of audience laughter rises, overlapping her final syllable. The man leans forward, extending his right arm across the table to tap the mug bearing the H, a playful half-smile crossing his face. The woman glances down at the mug, then back at him with a mixture of surprise and mild annoyance. He concludes with a light, trailing remark, completing his thought with, \"第二天啊，一切都会好起来的。\" The scene holds on this frozen moment of comedic tension, the static camera and bright, shadow-free environment preserving the polished, multi-camera sitcom aesthetic until the frame cuts.","video_1_relative_path":"videos/a1e15d3dc7b731e0.mp4","video_2_relative_path":"videos/49d75636e6931e1d.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_6/00000094","text_prompt":"A locked-off, eye-level medium two-shot holds inside a warmly lit bar, where red-orange backlighting glows softly behind shelves of bottles and rows of inverted wine glasses hang from a metal rack overhead. Shallow depth of field isolates the two men against the gently blurred backdrop, while warm key lights sculpt their faces and colored back-lights add atmospheric depth. A continuous, low-level piano theme with sustained string pads begins quietly, establishing a reflective and melancholic mood. A young man with short black hair, black-rimmed glasses, and a white T-shirt under an open red-blue-white plaid shirt stands facing a seated companion in a dark jacket and brown-and-grey plaid shirt. With a serious, slightly tense expression, he speaks in Mandarin, his tone low and earnest: “因为大力很担心你。” The seated man listens intently, leaning forward with his eyes fixed on him, while the subdued music plays quietly beneath the exchange.\n\nWithout cutting or camera movement, the standing man continues, his voice calm but laced with regret as he articulates each syllable at a measured pace: “我因为担心学姐才想搬进来住。” Faint micro-expressions cross his face—a tightened jaw, a slight brow furrow—hinting at inner conflict as the warm lighting maintains its steady glow. After a brief pause, he lowers his gaze for an instant before looking back up, his expression shifting to mild self-reproach as he adds: “没想到让她这么为难。” The seated listener remains motionless, absorbing the weight of the words without a sound. After a short breath, the speaker concludes with a slower cadence, his delivery firm yet sorrowful: “所以我决定离开。” A fleeting half-smile mixed with resignation touches his lips before settling into quiet resolve. The piano line lingers as the shot holds steady, the ambient score sustaining its somber presence while the scene rests on the unspoken tension between them.","video_1_relative_path":"videos/a9db9069e5b00348.mp4","video_2_relative_path":"videos/86ed5636779de6cc.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_6/00000095","text_prompt":"Cinematic medium two-shot, static eye-level framing, shallow depth of field, warm amber key lighting, and a saturated red-and-gold color palette establish an intimate lounge or bar setting. A wall sconce casts soft highlights across a round wooden table holding a neat stack of black poker chips, while out-of-focus liquor bottles rest in the right foreground and a glass doorway framed by red velvet curtains reveals blurred fairy lights in the background. Two young men face each other across the frame. The man on the left, dressed in a blue blazer over a yellow-and-blue plaid shirt and light trousers, speaks first with a calm, earnest tone. A calm, earnest male Mandarin voice begins, stating \"I didn't spot the flaw in the contract, that's my problem.\" As he speaks, he lifts his right hand palm-up to underscore his accountability. His counterpart on the right, slightly taller with black-rimmed glasses and an open red-blue-white plaid shirt over a white tee, listens in silence, posture upright but relaxed, his eyes fixed steadily on the speaker.\n\nThe camera holds its position without movement or cuts, maintaining the subdued, high-stakes atmosphere as the speaker lowers his hand and continues with measured resolve, stating \"I signed the contract with my own hands.\" The listener maintains unwavering eye contact, lips pressed together, offering only a barely perceptible dip of his chin in acknowledgment. The speaker concludes with firm finality, delivering a slight nod as he states \"I admit this point.\" The scene lingers on this quiet tension, the warm bar setting and shallow focus keeping all narrative weight on the raw, unspoken gravity of the exchange before fading out.","video_1_relative_path":"videos/c91f9f576f8d7625.mp4","video_2_relative_path":"videos/0f5aefc6cba85810.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_7/00000032","text_prompt":"Cinematic medium shot, locked-off and eye-level, opens inside a warmly lit café or tea-room bathed in soft, diffuse daylight that blends with cozy interior tones. The color palette is dominated by earthy browns, muted beiges, and deep blacks, punctuated by the vivid yellow of neckerchiefs and green foliage. Two teenage girls in matching black sailor-style school uniforms sit side-by-side at a dark wooden table, their navy collars edged in white piping and bright yellow neckerchiefs tied in loose bows, small red name badges pinned to their left chests. In front of them stand two tall, curved glasses filled with a cloudy pale drink, each garnished with a lemon slice on the rim, a single cherry at the bottom, and a white straw, while a smaller empty tumbler rests near the girl on the left. As a faint café room tone hums in the air, an off-screen adult woman’s calm, confident Japanese voice begins to speak, her standard Tokyo accent crisp and mid-to-high pitched: \"お二人は転校早々、十人もの不良どもをやっつけたと聞きました。\" The girl on the right turns her head slightly toward the unseen speaker, listening attentively with her eyes lowered and lips closed, while the girl on the left keeps her gaze forward, brows faintly knit as she absorbs the words, her posture steady and respectful.\n\nThe woman’s voice continues, shifting to an encouraging tone with a slight smile audible in her diction as she delivers her next line in Japanese: \"あんたらなら、やつらを倒せると思って。\" The girl on the left lifts her chin, leans forward a fraction, and parts her lips, signaling her intent to respond, her expression tightening with quiet determination. Beside her, the girl on the right remains composed, watching her companion with steady eyes. The camera holds perfectly still, capturing the subtle micro-expressions and restrained body language that convey a shared sense of resolve against the softly shadowed backdrop. The scene lingers on this poised anticipation, the ambient café sounds fading into the weight of the unspoken challenge hanging in the warm, layered space.","video_1_relative_path":"videos/76a78b9e2aca6113.mp4","video_2_relative_path":"videos/dfd6b7cac0758b12.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_7/00000046","text_prompt":"A classic American sitcom aesthetic unfolds in a single locked-off wide master shot, bathed in high-key, even studio lighting that eliminates shadows and highlights the warm wood tones of a cozy apartment living room doubling as a study. Floor-to-ceiling bookshelves packed with books and DVDs line the back wall, alongside a whiteboard scrawled with multicolored mathematical and physics equations, while a vintage Star Wars Episode III poster hangs in the upper-left corner. In the foreground, a glass coffee table is cluttered with papers, magazines, and foil take-out containers resting on a colorful patterned rug. Three friends occupy the space: on a reddish-brown leather couch to the left, a man in a grey T-shirt and plaid pajama pants calmly eats from a small metal container with a plastic fork. Beside him, a blonde woman in a light-blue V-neck T-shirt and dark shorts leans forward, animatedly beginning her story. To the right, a man wearing glasses, a brown jacket, and a green hoodie draped over his shoulders sits in a wooden director’s chair, also eating.\n\nA soft, non-diegetic studio laugh track fades in beneath the scene as a lively young woman with a General American accent leans forward, her expressive intonation rising as she states, \"Oh, anyways, I’m also writing a screenplay.\" Both men pause their chewing just enough to acknowledge her, and the man in the chair glances up briefly before returning to his food. Without any camera movement, she continues, now gesturing more broadly with open palms while maintaining eye contact, her tone upbeat and lightly self-mocking as she shares an amusing anecdote. She adds, \"It’s about this sensitive girl who comes to L.A.\" The laugh track swells gently, reinforcing the comedic mood, while the man on the couch chews thoughtfully and nods, and the man in the director’s chair watches attentively with his fork hovering mid-air. The clean, centered dialogue carries through the evenly illuminated set, underscoring a controlled, intimate recording environment where intellectual pursuits and everyday social dynamics play out in a warm, familiar rhythm.","video_1_relative_path":"videos/0149fb7fe806da68.mp4","video_2_relative_path":"videos/e41ca1f402988839.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_8/00000014","text_prompt":"A tense thriller scene captured in a tight, static two-shot framed in profile, utilizing strong backlighting and a muted earth-tone palette of mustard yellow and forest green against a cool, neutral backdrop. The clip opens in a dim room where a softly glowing, out-of-focus window or curtain casts a faint halo of warm light between two men, silhouetting their faces against the darkness. On the left, an older man in his mid-forties wears thin metal-rim glasses and a pale green-and-white vertical-striped button-down; his stern expression is half-swallowed by shadow. Beside him, a younger man in his late teens or early twenties, clad in a mustard-yellow jacket over a dark T-shirt and a blue beanie with horizontal yellow-white stripes, is more clearly lit, revealing an animated, nervous energy. A low, persistent electronic hum fills the sparse soundscape as the younger man leans fractionally closer, his voice dropping to a tense, urgent whisper: “But what if he’s faking it?” His lips move crisply while his brows lift in concern, the American accent sharp with anxiety.\n\nWithout breaking the static frame, the younger man’s hushed tone gains intensity, mixing bravado with unease as he presses on: “Like if it was me, I’d be all faking being knocked out, yo!” He stresses the words with a rapid, conspiratorial cadence, while the older man remains perfectly still, jaw set and eyes locked on his companion, absorbing the plan in silent tension. After a brief pause marked by an audible intake of breath, the younger man continues in the same secretive whisper, “And then, when the coast is clear, we make our move.” As he speaks, he raises his right hand to his chin, fingers brushing his lips in a gesture of contemplation. The older man’s gaze does not soften, holding its intense, unblinking weight as the ambient hum persists, wrapping the exchange in a thick atmosphere of secrecy and impending action.","video_1_relative_path":"videos/783256398c1144fc.mp4","video_2_relative_path":"videos/59f79532f4175120.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_8/00000022","text_prompt":"Open on a static wide shot of a dimly lit, cluttered living room bathed in warm, low-key illumination from a single off-screen lamp that casts long chiaroscuro shadows across patterned wallpaper and heavy drapes. The dominant palette of muted browns, deep reds, and shadowy blacks establishes a gritty, late-night atmosphere. In the foreground, a round coffee table is strewn with half-empty bottles, cans, ashtrays heavy with cigarette butts, and a small gold-colored bowl. On the left, a man in a dark T-shirt and jeans reclines on a light sofa with his legs propped, remaining entirely motionless. Behind the table, a bearded man in a dark beanie and black jacket with a white collar leans forward, extending an open red snack bag toward the camera while speaking with an upbeat, inviting energy. A lively male American voice with an upbeat, inviting tone begins, stating, \"These are mad tight, yo.\" Underneath the scene, a subdued electronic hip-hop loop with a soft kick and hi-hat pattern pulses steadily at a low volume, blending with the faint rustle of clothing and the crinkle of the snack bag.\n\nAs the snack is offered, a large, bald man wearing a brown-and-white horizontal-striped polo steps into view from the lower-left corner, briefly obscuring the seated pair before halting beside the coffee table. He faces the group, shakes his head slightly, and a deeper male American voice with a flat, uninterested delivery replies, \"Ah, thanks, man, pass.\" The beanie-wearing man counters with playful insistence, still gesturing with the bag, before a lively male American voice with a playful, taunting tone adds, \"Your loss.\" The exchange concludes as the striped-shirt man turns away and walks out of frame to the right, his back filling the shot. The beanie man watches him go, lowers the snack bag, and settles back into his seat while the reclining man remains fixed ahead, eyes unblinking. The ambient lighting and background music hold constant, preserving the static framing that keeps all three figures reasonably sharp in the depth of field, focusing entirely on the casual camaraderie and mild tension of the moment until the scene fades.","video_1_relative_path":"videos/69e1db99d044b13a.mp4","video_2_relative_path":"videos/26ce6c795d99e94b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_8/00000050","text_prompt":"A cinematic medium shot, locked off at eye level, frames a warmly lit living room bathed in soft, even household light that casts gentle shadows across an earthy palette of browns, tans, and muted reds. Three figures sit side-by-side on a large brown leather sofa draped with a red-orange crocheted throw, framed against a backdrop of light wooden dining chairs, a potted plant, and decorative wall plates that establish a cozy, intimate domestic space. On the right, a bald, middle-aged man in a tan fleece pullover leans forward, resting his left elbow on the couch arm while holding a beige pillow embroidered with the phrase “Happiness is in the Little Things.” He scratches the top of his head, his expression earnest yet weary, and begins to speak in a calm, measured North American accent, stating, “But… look at it this way, okay? It’s the bottom of the ninth, bases are loaded.” Beside him, a woman with shoulder-length reddish-brown hair and a dark maroon top sits with her arms tightly crossed, her gaze fixed on him, lips pressed in a neutral but tense line that betrays underlying skepticism. To her left, a younger man in a navy crew-neck sweater slumps stiffly, eyes cast downward toward his lap, hands interlaced in a posture of quiet resignation.\n\nThe older man lowers his hand and gestures with an open palm before raising both hands, palms up, as if carefully weighing his words. His cadence carries a steady urgency, his voice emphasizing the gravity of the moment as the camera remains completely still. The ambient soundscape stays near-silent, limited to a faint, low indoor hum that underscores the heavy, contemplative mood. The woman maintains her rigid, arms-folded stance without shifting her weight, while the younger man keeps his gaze averted, his body language echoing the tension of the scene. Soft lighting accentuates the subtle micro-expressions on each face, freezing the trio in a tableau of quiet introspection and unspoken weight, the warm domestic setting contrasting sharply with the emotional gravity of the conversation.","video_1_relative_path":"videos/2bf0d096c18f6aee.mp4","video_2_relative_path":"videos/7d6bdf847e681595.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_8/00000070","text_prompt":"A locked-off medium shot at eye level captures a bright, sun-drenched suburban patio, rendered in harsh midday light that casts crisp shadows across beige stucco, muted greens, and pastel pinks. In the left foreground, a bald man wearing a black jacket over a dark shirt and light trousers leans back in a wicker chair, drawing deeply on a thick cigar as a faint plume of white smoke curls upward. Behind him, slightly right of center, an older man with short greying hair and glasses stands with his hands clasped loosely behind his back, dressed in an olive-green button-down tucked into khaki pants. A pink metallic foil banner reading “IT’S A BOY!” hangs curved against the wall, its festive shimmer creating an ironic juxtaposition against the quiet tension between the two men. The standing man speaks in a calm, almost amused baritone with a measured General American accent, his slight smile audible as he remarks, “It’s funny, isn’t it?”\n\nThe seated man exhales a dense cloud of smoke that drifts across the frame, momentarily veiling both figures before thinning to reveal his thoughtful expression. He continues in a relaxed, conversational tone, “How we draw that line.” The standing man offers a brief, neutral acknowledgment, “Yeah?” prompting the seated man to turn his head, eyes narrowing slightly with mild curiosity and quiet challenge as he asks, “What line is that?” During the exchange, he lowers the cigar to the edge of a nearby side table draped in a pink cloth, then picks up a clear plastic bag filled with additional cigars and extends it outward toward his companion. The moderate depth of field keeps both figures and the domestic backdrop acceptably sharp, allowing the subtle gesture of camaraderie or temptation to anchor the scene.\n\nThe dialogue fades into a heavy, contemplative silence. The seated man holds the open bag outstretched, cigar still resting in his fingers, while the standing man maintains his steady gaze, hands clasped behind his back. Sunlight catches the drifting smoke and the subtle folds of the party banner, emphasizing the unspoken negotiation of boundaries and shared complicity. The camera remains completely still, preserving the spatial clarity of the blocking, while the audio landscape is stripped of music and dialogue, leaving only a low outdoor hush and the faint rustle of warm air. The scene closes on a quiet, suspended standoff under the bright midday sun, the festive decorations and serious demeanor locked in a still, cinematic tableau.","video_1_relative_path":"videos/23db221ab72cefd3.mp4","video_2_relative_path":"videos/12b9f0ea72762a9b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_9/00000026","text_prompt":"Set in a dimly lit urban courtyard at night, the scene opens on a static medium-wide shot framed by weathered brick walls, exposed pipes, and a wrought-iron gate leading to an external stairwell. Cool, desaturated lighting bathes the space in bluish ambient tones from overhead streetlamps, casting long shadows across the tiled ground and highlighting a vintage off-white sedan parked to the left. Two middle-aged men stand in the foreground facing each other: one in a brown leather jacket over a dark shirt, the other in a tan zip-up jacket and grey sweater. Behind them, three younger men observe in silence—a youth in a black hoodie and light sweatpants clutching a folder tightly, flanked by two figures in dark business suits standing rigidly near the gate. The atmosphere is tense and grounded, underscored only by a low-frequency urban hum of distant traffic and the faint rustle of clothing as the men shift their weight.\n\nThe man in the leather jacket leans forward, his body language conveying urgent impatience as he gestures emphatically and points directly at his companion. A middle-aged male Mandarin voice, firm and mildly exasperated with a northern accent, begins: \"Alright, stop dawdling. If you keep stalling, the kids will be out of school and heading home. It’s not good for the children to see a scene like this.\" His tone shifts to decisive authority as he turns his head toward the sedan and extends an arm, ordering: \"Get in the car.\" The moment the command lands, the scene resolves with precise mechanical realism: a sharp metallic click echoes as the driver-side door handle is engaged, followed by a soft hinge squeak and the heavy, resonant thud of the door slamming shut. The absence of musical scoring leaves only the raw environmental acoustics and the finality of the car door to punctuate the interaction, leaving the observers motionless as the narrative tension dissipates into the quiet night.","video_1_relative_path":"videos/1a628288792f5288.mp4","video_2_relative_path":"videos/b53aec751ed526b2.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_9/00000031","text_prompt":"Cinematic drama, cool desaturated palette, soft frontal lighting, and a static medium close-up establish a tense, intimate atmosphere. The scene opens in a softly lit interior, likely a quiet living room or study, where an older East Asian man is framed from mid-chest upward, positioned slightly left of center. He wears thick black-rimmed glasses, a crisp white collared shirt beneath a gray-brown textured V-neck cardigan, his neatly combed hair showing subtle graying at the temples. Soft illumination sculpts his facial contours without harsh shadows, while a shallow depth of field keeps him sharply in focus against a blurred background featuring a large potted plant, a framed monochrome waterfall print, and indistinct furniture. Behind him, a younger man in a dark jacket stands motionless near a doorway, rendered out of focus. The older man’s expression is stern and contemplative as he gazes off-camera to his right, his brow slightly furrowed with restrained frustration.\n\nA calm, measured male Mandarin voice begins, stating \"Alright.\" He continues with a moderate-low pitch and clear articulation, his tone growing exasperated as he remarks, \"The public security and procuratorate inspected two locations, apprehended one suspect, but in the end, the target still slipped away.\" As he speaks, his jaw tightens slightly, his eyes narrow, and his lips press together at the conclusion of the sentence, conveying quiet fury over a failed operation. The acoustic environment remains exceptionally clean and controlled, stripped of music, footsteps, or ambient noise, leaving only the faintest room tone to frame the intimacy and gravity of the moment. The camera holds steady on his contemplative profile, emphasizing psychological tension over action until the scene naturally concludes.","video_1_relative_path":"videos/ee9dfc7606d43696.mp4","video_2_relative_path":"videos/7f0cb1e12f5295ac.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_9/00000081","text_prompt":"A static, intimate domestic drama unfolds in soft, natural daylight that washes a modest dining room in a warm, gentle palette. Shot in fixed medium close-ups with clean cuts, the scene relies on restrained mise-en-scène and subtle generational contrasts through costume and posture. The camera holds on a young East Asian man in his early twenties, dressed in a sea-green button-down over a white tee, seated at a wooden table. A low refrigerator hum underpins the quiet ambience as he examines a glossy braised chicken wing held in wooden chopsticks. Looking down at his bowl, he speaks in standard Mandarin with a calm, slightly hurried, and apologetic tone, stating “前几天已经发电邮告诉我了。”\n\nA clean cut shifts the frame to an older East Asian man in his sixties, wearing a grey polo shirt, framed from the mid-chest up against a backdrop of a small aquarium and pale blue curtains. His brows rise and his mouth parts as he responds in standard Mandarin with mild exasperation and rising surprise, asking “你怎么不早说啊？” while faint utensil clinks echo from off-screen diners. The camera then cuts to an older East Asian woman in her mid-fifties, her hair pulled back and draped in an olive-green cardigan, leaning forward with wide eyes and asking in standard Mandarin with urgent curiosity, “哪个学校？” Behind her, autumnal landscape paintings hang quietly in the soft, warm light.\n\nThe focus returns to the young man, who remains fixed on his meal and answers quietly yet clearly in standard Mandarin, “斯坦福。” His subdued delivery carries a hint of hesitation, followed by a brief pause filled only by the appliance hum and the muted tap of chopsticks against porcelain. A final cut introduces a teenage girl in a white-and-blue zip jacket, seated near a magnet-covered refrigerator. Her eyes widen dramatically and her mouth forms an “O” as she repeats the name in standard Mandarin with a high-pitched, astonished voice, “斯坦福？” The refrigerator hum persists as the scene holds on her stunned expression, capturing the quiet shock rippling through the family meal.","video_1_relative_path":"videos/46f92bdb0e3910be.mp4","video_2_relative_path":"videos/b9fcff53dd5b5a91.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/multitalker/multitalker_9/00000091","text_prompt":"A cinematic nocturnal scene unfolds in a cool palette of bluish whites and muted sage greens, captured with a static lens that keeps the focus tightly on facial expressions and dialogue dynamics. The camera opens on a medium close-up of an older East Asian man standing beside the driver’s side of a parked silver sedan. Bathed in cool bluish highlights from practical streetlights and the car’s own headlights, he wears thin metal-rimmed glasses, a light olive-green trench coat over a white collared shirt and patterned tie, with short graying hair. The background melts into a soft bokeh of trees and a faint red-and-white barrier arm. Leaning forward through the open window, his brow furrowed and posture tense, he speaks with breathy urgency, his mid-low, slightly raspy voice carrying a pleading tone as he states, “我家里头天会塌的。” A low, steady electrical hum underscores the quiet night, stripping away all extraneous sound to center attention entirely on his strained delivery.\n\nThe shot cuts to an interior reverse view from the passenger side, framing the woman behind the wheel. She sits upright with her seatbelt fastened, her long dark wavy hair parted to the right, dressed in a grey turtleneck beneath a pale sage-green jacket. Cool interior lighting casts soft shadows across her composed face as she maintains steady eye contact with the man outside. Her voice emerges in a clear, mid-high register, calm yet firm, as she delivers the corporate verdict: “开除你真的是集团的决定。” She follows immediately, a slight eyebrow lift emphasizing her measured tone, “怎么可能我一个人说了算呢？” The scene holds on the quiet tension between his anxious desperation and her restrained authority, the practical lighting and muted color grading reinforcing the nocturnal atmosphere and the unspoken power imbalance of the workplace conflict.","video_1_relative_path":"videos/97d80ffda2868a09.mp4","video_2_relative_path":"videos/f403444975ce6e17.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_1/00000031","text_prompt":"Widescreen 16:9 cinematic framing, shallow depth of field, and soft frontal lighting from overhead fluorescents establish an intimate, tense atmosphere in a modest cafeteria. The background dissolves into a soft bokeh of blurred tables and distant patrons, keeping the visual focus locked on two East Asian men seated across from each other. On the left, an older gentleman in his late fifties wears a dark olive-green short-sleeved shirt and a small white earring in his left ear, his forehead lined with age. He leans forward, brows knitted and eyes narrowed, his medium-low Cantonese-accented voice cutting through the quiet room with controlled anger. A reproachful male voice states, \"You actually fool even the dead!\" Across the table, the second man remains perfectly still, head bowed in silent absorption, his presence anchoring the heavy atmosphere.\n\nThe camera holds its static position, capturing only the subtle shifts in the speaker’s expression as his delivery slows and hardens into stern admonition. The ambient hum of the eatery fades into the background, leaving only the weight of his words. A firm, didactic male voice continues: \"If you want others’ respect, you must first respect yourself.\" The muted earth tones of the setting—the olive shirt, the neutral walls, the soft even lighting—mirror the grounded, principled rebuke, leaving both men frozen in a moment of quiet tension as the final syllable hangs in the air.","video_1_relative_path":"videos/22618cdcaab31cf8.mp4","video_2_relative_path":"videos/66dbe55d52fc1567.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_1/00000035","text_prompt":"Neo-noir suspense shot with a dominant cyan-blue color wash and tight, psychologically charged framing. The scene opens in a medium close-up at eye level inside a dimly lit interior backed by rough, pale green-blue concrete walls. An older East Asian man with wavy dark hair and a tan trench coat stands on the left, his right arm fully extended toward the camera as he firmly grips a black semi-automatic pistol, index finger resting along the frame behind the trigger guard. A silver chain-link bracelet circles his left wrist and a large black ring gleams on his right ring finger. His face is stern, brows knitted, lips pressed tight. To his right, an East Asian woman with short, straight black hair leans against the wall, initially concealing her eyes behind oversized dark sunglasses, wearing a white collared jacket and small hoop earrings. A calm, neutral male Mandarin voice-over begins, stating “为什么要这么做？” The camera cuts to a tighter close-up of the woman from a slight low angle, her sunglasses now removed to reveal wide, staring eyes. The man’s gun barrel remains visible entering from the lower left, visually reinforcing the threat and psychological pressure. Her expression shifts rapidly from a broad, almost manic grin to a flicker of amusement and defiance. The narration continues in the same measured tone, asking “他是不是和阿发有一腿？” Her mouth moves as if to reply, but only the narrator’s voice fills the stark, scoreless silence. The shot holds on her face as her smile softens into a knowing smirk and her head tilts fractionally upward. She responds in a higher-pitched, lightly teasing female voice, “连浩龙啊。” The man’s hand and pistol remain perfectly steady throughout. The scene concludes with the standoff unresolved, the image freezing briefly before fading out, leaving the blue-green atmosphere and verbal tension lingering.","video_1_relative_path":"videos/efba03c276a5d615.mp4","video_2_relative_path":"videos/4338fc71a41f2ef7.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_1/00000047","text_prompt":"Cinematic medium shot, slightly low-angled, capturing a sparsely furnished room with cracked white walls and a rough wooden table, bathed in soft natural daylight streaming from a window on the right. The muted earth-tone palette and subtle film grain evoke a mid-twentieth-century rural Italian atmosphere. At the table, an older man in a brown fedora, dark pin-striped suit jacket, red-and-white patterned sweater-vest, striped tie, and beige scarf leans forward, gripping the table’s edge with one hand while raising his right index finger toward an elderly woman seated opposite him. Dressed entirely in black with her hands clasped and a grave expression, she watches him intently. Beneath this tense tableau, a calm, neutral male Mandarin voice-over begins, stating, \"It is not hollow thanks, but real votes,\" as faint orchestral strings establish a subdued, reflective mood.\n\nThe man straightens and pivots to face her more directly, his brows knitting and lips pressing together as he points again with firm insistence. The woman’s eyes track his gestures, though her posture remains still. He bends forward once more, resting both forearms on the table and leaning closer as his delivery shifts to Italian. Earnest yet tinged with impatience, he declares, \"When the time comes, you cast a solid vote for me.\" The Mandarin narration pauses briefly to let his resonant baritone carry through before resuming its steady cadence. In the deep background, a vintage television rests on a shelf while another elderly man in a flat cap sits motionless near a foosball table, silently observing the exchange. The orchestral underscore persists at a low level, gradually fading as the man holds his forward-leaning pose and the scene closes on the quiet weight of his political plea.","video_1_relative_path":"videos/5e6fbcbad57ea239.mp4","video_2_relative_path":"videos/06bbe695248b13ff.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_1/00000062","text_prompt":"A historical-fantasy sequence, shot on a 35mm lens with soft, diffused daylight and an earthy palette of muted greys, warm beige, and natural greens, opens in a sun-dappled field of tall grass and scattered weeds. A low-angle medium frame elevates a solitary figure clad head-to-toe in ornate, dark-grey metallic armor etched with intricate relief patterns. The helmet’s visor conceals the wearer’s face, leaving only a human silhouette kneeling on one knee and bowing deeply toward someone just out of frame at screen left. At the extreme left edge, the torso and arm of a second individual are visible, dressed in a white blouse with delicate lace trim beneath a brown, fur-edged cloak fastened by a red cord. A calm, neutral female Mandarin voice-over begins, her measured and advisory tone stating, \"I hope he no longer risks his life for those who aren't worth it.\" The surrounding ambience remains deliberately silent, focusing all attention on the visual weight of the exchange.\n\nA straight cut shifts to a tight close-up of a young woman standing amid the same verdant backdrop. Her fair skin contrasts with neatly styled black hair gathered into an up-do, straight bangs framing a thoughtful expression as she looks downward and slightly to her right, lips parted as though finishing a thought. Natural light illuminates her face evenly against a softly blurred background, isolating her emotionally charged presence. The female voice continues, now delivered directly by the on-screen woman in a quieter, more personal register, her earnest tone carrying a hint of concern as she adds, \"Your enemy is on our side.\" The camera lingers on her face, capturing a dynamic of power and vulnerability, while the deliberate silence and somber lighting deepen the contemplative mood of a pivotal conversation about loyalty and sacrifice.","video_1_relative_path":"videos/f8fe6030df23db4f.mp4","video_2_relative_path":"videos/b7595df294c88550.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_3/00000014","text_prompt":"Cinematic medium shot, locked-off tripod at eye level, natural daylight key lighting from camera-left through a large window with white louvered shutters and a sheer blue-and-white curtain. The scene unfolds in a modest bedroom painted light olive-green, establishing a casual domestic atmosphere with a muted palette of cool greens and blues, contrasted by the stark black of a young man’s T-shirt featuring a faint bicycle graphic. He stands in the foreground with spiky blond hair, leaning forward over an unseen object, elbows bent and gaze fixed intently ahead. Behind him, a young woman with brown hair in a messy bun, dressed in a pale-blue V-neck ribbed sweater and dark trousers, slips a translucent disposable glove onto her right hand while glancing toward him. Underneath this quiet setup, a low-volume electronic dance track begins, driven by a steady four-on-the-floor kick, soft hi-hats, and a looping synth motif at roughly 120 BPM, mixed well below the dialogue. A calm, neutral female Mandarin voice-over begins, stating “经常和女友一起玩刺激。”\n\nThe woman finishes donning the glove, raising her right hand slightly with fingers flexing in readiness, her expression a blend of mild amusement and curiosity as she looks toward the man. He remains motionless save for a subtle tightening of his jaw and a brief downward glance before returning his eyes forward, holding his stance without a word. She then speaks in lightly teasing American English, her mid-pitch delivery measured and playful: “And you want me to use two fingers?” The electronic bed continues at the same restrained volume, carrying the scene’s subdued tension until the clip cuts abruptly, silencing both picture and sound simultaneously.","video_1_relative_path":"videos/01cc75de61906a28.mp4","video_2_relative_path":"videos/2792b6175d6c8b7c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_3/00000041","text_prompt":"Open on a dim, mist-laden interior of an old Chinese-style residence, bathed in soft, diffused nocturnal light that casts a moody haze across the scene. A static medium shot frames the space from mid-torso up, keeping the camera locked off to emphasize the raw tension of the encounter. Red lacquered lattice doors and wooden beams anchor the left side of the composition, contrasting sharply with the pale period costumes. A young male scholar stands just inside the doorway, dressed in a light beige outer robe over white undergarments and a tall, patterned scholar’s cap. He holds a white porcelain plate with blue floral motifs bearing a small mound of dark, glossy food. Looking slightly downward, a calm, reflective male Mandarin voice murmurs, \"可其中的苦水，恐怕只有自己能懂。\" The ambient silence is thick, isolating his low, introspective tone against the drifting haze.\n\nSuddenly, a young female visitor steps briskly into view from the right, partially obscuring him. She wears an ornate, light-colored silk robe embroidered with vivid purple, blue, and orange flowers, her hair arranged in an elaborate up-do adorned with silver ornaments and dangling earrings. Her entrance is purposeful; she raises her right hand toward the man’s chest in a quick, commanding gesture and speaks with a bright, urgent timbre, cutting through the hush: \"举手！\" She leans forward, her eyes locked on his, her voice rapid and pressing as she asks, \"你身上有没有银子啊？\" Her tone shifts to a pleading yet forceful cadence, rising slightly at the end of the sentence: \"先借来用一用嘛。\" The man’s expression shifts from contemplative to startled surprise. He lowers his gaze to the plate, then back to her, momentarily frozen as her hand drops out of frame. The red wooden doorframe and drifting smoke remain constant in the background, reinforcing the confined atmosphere. Speech ceases, leaving only the stark, music-less silence to underscore the unresolved tension before the scene lingers on their silent standoff.","video_1_relative_path":"videos/fe4e216879b3ccb5.mp4","video_2_relative_path":"videos/9bd2ec107b102e14.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_4/00000015","text_prompt":"A tense, desaturated prison drama unfolds in high-contrast chiaroscuro, shot on a static camera with shallow depth of field to isolate subjects against blurred institutional backdrops. The clip opens on a tight, slightly low-angled close-up of a young white inmate in a white ribbed long-sleeve shirt. Cold bluish side-lighting from camera right sculpts his face, plunging the left half into deep shadow while highlighting his right cheek and forehead, with a faint vertical strip of daylight bleeding through a barred window behind him. His eyes are wide and fixed just off-camera to the right, mouth parted mid-breath as a calm, neutral male Mandarin voice-over begins, stating, “电影什么的事情，就把这个事啊给交代了。” A barely audible low electronic hum underscores the scene. A hard cut shifts to a medium close-up profile of an older white prison guard seated at a desk, his dark uniform jacket bearing a circular shoulder patch that reads “RIVER PENITENTIARY.” Cool directional light casts crisp shadows across his cheek and sleeve as he lifts a light-blue disposable cup with a straw and takes a slow sip, a slim monitor edge intruding at the frame’s left. The scene then widens to a static view of the holding room, where grey cinder blocks plastered with pinned notices and photographs line the walls behind the standing inmate. Horizontal blinds to the left cast slatted shafts of light, while a black gooseneck desk lamp in the right foreground adds a warm practical glow to the otherwise blue-grey palette. The inmate steps forward, gesturing emphatically with his right hand, palm outward, then points toward the seated guard whose back faces the camera. Simultaneously, a clear, neutral-accented English male voice cuts through the ambient hum: “In the yard today.” The restrained editing and static camera keep the focus entirely on the psychological tension and the stark, somber atmosphere of the interrogation space.","video_1_relative_path":"videos/9662b807725f604a.mp4","video_2_relative_path":"videos/6ee6076549a594c4.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_4/00000076","text_prompt":"Cinematic drama, shot on a steady handheld camera with a cool, desaturated palette and flat overcast lighting. The scene opens on an extreme close-up of a completely flat black tire pressing into pale gravel beside a beige, boxy sedan, a thin silver trim strip catching the muted daylight along the lower body panel. Dense green trees form a leafy backdrop as a calm, neutral male Mandarin voice-over begins, stating \"Warm-heartedly, he told his companion Pangtouyu to go buy one,\" while a faint bed of low-volume electronic synth music underscores the moment.\n\nA hard cut tilts up to reveal the balding, middle-aged driver kneeling on the gravel by the open rear door, his light grey T-shirt marked by a darker horizontal band across the chest. Strain and frustration etch his face as he looks upward toward someone off-camera. The frame widens to a medium-long shot, introducing a second man with short brown hair, wearing a white and grey baseball-style shirt and dark jeans, a cigarette dangling from his right hand near the front fender. The driver rises, brushes gravel from his knees, and faces his companion. They exchange words against the forested roadside; a dismissive, slightly mocking American English voice chimes in, saying \"And you’re just a sad sack that has to go back into town,\" as the Mandarin narration briefly overlaps before fading out. The subdued electronic bed remains low beneath the dialogue, maintaining a tense yet conversational mood.\n\nThe camera remains steady with minor framing adjustments, following a classic continuity progression from detail to character reaction to contextual wide shot. Flat lighting and muted saturation preserve a somber, realistic atmosphere, while the audio mix keeps dialogue sharply in the foreground with background music sitting roughly fifteen decibels below the speech. No prominent ambient sounds break the controlled silence as the scene holds on the two men, their expressions tense but engaged, before cutting cleanly to black without further motion or sound.","video_1_relative_path":"videos/f10cb58a04f7598e.mp4","video_2_relative_path":"videos/f67df39908c54dbd.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"magihuman_ltx_cross/voiceover/voiceover_5/00000086","text_prompt":"Cinematic historical drama, captured in a static medium-long shot with a desaturated blue-green palette and naturalistic moonlight, a cool landscape unfolds where a young woman sits alone on a grassy riverbank beside calm water that mirrors the pale sky. She is hunched forward, knees drawn to her chest and arms wrapped tightly around them, her head bowed in quiet sorrow. Her long dark hair is braided and secured with a delicate beaded headpiece that glints faintly in the low light, while drifting mist softens the distant tree silhouettes and two indistinct figures with a dark horse outline standing far across the water. A slow, minor-key orchestral score led by sustained strings and sparse piano accents swells immediately, establishing a somber, timeless atmosphere. Over this underscore, a calm, male Mandarin narrator with a resonant baritone and formal documentary tone begins his measured recitation, stating, \"According to Wusun custom, his younger brother Wengguimi succeeded to the throne and married Princess Jieyou.\"\n\nThe frame cuts to a tight profile close-up, isolating her face and upper shoulders against a soft, out-of-focus grey background that intensifies her emotional weight. Her eyes are closed, moisture glistening along her lashes, and her lips part slightly as she holds back tears, while fine braids fall past her cheek and the ornate headband catches a faint rim-light. Her hands remain clasped before her chin, fingers interlaced in a gesture of prayerful distress, all rendered in shallow depth of field that emphasizes the pronounced contrast between her features and the dim, bluish moonlight. The orchestral music continues unchanged beneath his solemn narration, which concludes with the final clause about the princess, leaving only the hushed, contemplative silence of the scene to linger as the vast negative space of water and sky reinforces her profound solitude and the quiet weight of fate.","video_1_relative_path":"videos/8c046776bd11d8c9.mp4","video_2_relative_path":"videos/23970f30b1331212.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_1/00000008","text_prompt":"Cinematic sci-fi sequence, wide static shot, twilight lighting with a horizon glowing in soft yellows and oranges fading into cool blues. The camera remains fixed on a tranquil beach where gentle waves roll onto wet sand that perfectly mirrors the sky’s pastel gradient. Center-frame stands a silhouetted woman with long dreadlocks tied back, wearing a form-fitting full-body suit accented by pale blue straps across her shoulders and waist. Her posture is relaxed yet attentive, hands initially resting on her hips as she gazes toward the ocean. To her left, hovering just above the shoreline, floats a compact, dark, angular drone with glowing circular elements, emitting a steady mechanical hum. As the scene progresses, the woman lowers her hands to reveal a small handheld interface in her right palm. She manipulates it with precise gestures, triggering a brief high-pitched digital chirp that coincides with a translucent orange holographic projection materializing mid-air. The display forms a radial UI with concentric rings and pulsing nodes that rotates slowly. Throughout, the soundscape relies entirely on diegetic textures: the low-frequency rumble of distant surf, the persistent electronic whir of the drone, and the faint rustle of fabric as she moves.\n\nAn off-screen male voice enters clearly over the ambient soundscape, speaking with a calm, deliberate tone and a slight electronic reverb that suggests a secure communications relay. In neutral American English, he states, \"Nakia, your hunch was correct. I’ve picked up a location on Shuri’s Kimoyo bead.\" His measured delivery overlaps with the rhythmic wash of the ocean and the device hum, while the holographic display flickers faintly in response to the transmission, implying real-time data correlation. The woman continues to interact with the interface, her fingers making subtle adjustments that keep the projection active, as the drone maintains its steady hover against the dimming light. The atmosphere remains grounded in a tone of quiet reconnaissance, blending the organic serenity of the coastal environment with advanced technological elements to build a sense of focused discovery and impending action.","video_1_relative_path":"videos/890469fe95e23224.mp4","video_2_relative_path":"videos/1b868e772349ea6a.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_1/00000031","text_prompt":"A hyper-realistic cinematic sequence opens on a bright, sunlit European city street, captured in a medium-wide static shot with harsh daylight and a warm, vivid palette. The camera frames a tranquil outdoor café patio furnished with rattan chairs and tables draped in red tablecloths. At the central table, a man and a woman sit in casual jackets, engaged in quiet conversation, while a uniformed waiter in a white coat stands motionless near the entrance. To the right, a black A-frame chalkboard menu displays handwritten French signage, and a black compact car and blue scooter rest along the curb. The soundscape begins with a low, peaceful urban hum, faint traffic, and the soft clinking of glassware, establishing a mood of serene everyday routine.\n\nSuddenly, a violent explosion detonates directly behind the café façade, sending a massive shockwave of debris outward. The fixed camera holds its position as the frame floods with chaotic motion: glass shards, wooden planks, cardboard boxes, metal fragments, and paper scatter in all directions. The audio swells instantly into a thunderous, multi-layered impact, dominated by a deep sub-bass boom, sharp crackling, high-frequency shattering, and metallic tearing. The seated man flinches and turns his head sharply toward the blast, releasing a quick, sharp exhale, while the woman recoils instinctively with a brief gasp and tightened shoulders. The waiter steps back abruptly, his retreat marked by the scuff of his shoes and the rustle of his uniform. Debris continues to rain down, bouncing off a green awning and striking the parked vehicles, causing them to jolt. Overturned chairs, shattered tabletops, and swirling dust clouds obscure the patio as the initial detonation decays into a dense cascade of tinkling glass, thudding wood, and rustling paper layered over a persistent low rumble. The scene settles into lingering echoes of falling fragments and the heavy stillness of dust hanging in the air, leaving the characters frozen in stunned silence against the backdrop of sudden, raw destruction.","video_1_relative_path":"videos/c154057bfd2d2a19.mp4","video_2_relative_path":"videos/d53f9fece2dc1a7a.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_1/00000065","text_prompt":"A cinematic sci-fi sequence opens on a static medium close-up, utilizing low-key lighting and a warm interior palette that sharply contrasts the cool, shadowed exterior. The frame is shot from within a dim, confined space, peering outward through a dark chain-link fence that dominates the foreground and establishes a palpable sense of separation. Beyond the metallic grid, a warmly lit interior glows with three circular ceiling lamps casting a yellowish hue against a pale ceiling, while a red strap hangs vertically near the center-left. The atmosphere is immediately grounded by a deep, resonant synthesized drone, its low-frequency rumble filling the audio space and establishing an ominous tone.\n\nA hard cut plunges the frame into absolute blackness, where faint white particles drift slowly like dust motes or distant stars. From the bottom left corner, the textured silhouette of a large, segmented creature resembling a serpent or worm emerges and glides diagonally upward, its ridged body catching a faint greenish-blue bioluminescent sheen against the void. The camera holds still, allowing the creature’s fluid motion to command the frame while the sustained bass drone continues beneath, now layered with subtle high-pitched shimmering tones that heighten the tension without breaking the low foundation.\n\nThe scene fractures into a violent, chaotic eruption of fire as bright orange and red sparks blast from the right side, scattering rapidly toward the left through swirling smoke and embers. In the lower right corner, a glowing molten mass pulses rhythmically, radiating intense heat. The audio swells to match the visual climax: the foundational drone intensifies in amplitude, tightly synchronized with crackling fire foley and sharp whooshing effects that track the velocity of the sparks, driving the sequence to a breathless, explosive peak before cutting abruptly.","video_1_relative_path":"videos/6911b6286bea86ff.mp4","video_2_relative_path":"videos/94f92f2e7556a0a8.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_1/00000072","text_prompt":"Cinematic sci-fi thriller tone, shot on a 50mm lens with shallow depth of field. A tight close-up frames a man with dark, slightly tousled hair and pale skin, dressed in a loose olive-green shirt. His eyes are wide and fixed on something off-screen to his right, his mouth parted in quiet shock or sudden realization. Low-key lighting carves deep shadows across the background, where industrial pipes and metal shelving hint at a confined, utilitarian interior. The scene opens in near silence, broken only by a faint room tone and the subtle mechanical hum of ventilation systems echoing off hard surfaces. A sharp, audible exhalation escapes him, his shoulders shifting slightly as the breath cuts through the quiet.\n\nThe camera cuts abruptly to a static wide shot of a cramped, metallic bunk room, likely aboard a spacecraft or military vessel. Two identical men stand facing each other in matching grey long-sleeved uniforms and trousers. The man on the left keeps his head bowed and shoulders slumped, while the man on the right stands rigidly upright with his hands loosely at his sides. Between them lies an unmade bed with rumpled green bedding, and narrow shelves line the walls, cluttered with tools, containers, and personal effects. A towel hangs near the doorframe and a blue jerrycan rests on the floor. Overhead fluorescent fixtures cast a cool, flat light that emphasizes the cold, sterile atmosphere. A slow, weary sigh drifts from the man on the right, its weight settling over the stillness. The composition holds its tension through silence and posture alone, the ambient hum continuing beneath the decay of his breath. The scene radiates psychological isolation and duality, using the sterile environment, mirrored figures, and sparse audio to convey a haunting sense of identity crisis and suppressed emotion.","video_1_relative_path":"videos/caa2020b344a38cb.mp4","video_2_relative_path":"videos/bca06241af7fa45b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_2/00000030","text_prompt":"A tense, atmospheric thriller sequence opens in a shadowy, utilitarian laboratory or maintenance bay, bathed in near-total darkness pierced by a faint, cold-toned overhead light that carves deep shadows and sculpts the contours of the room. Shot in a cool, desaturated palette with a shallow depth of field, the camera holds a medium close-up on a seated figure positioned slightly left of center, captured from mid-torso to knees. The subject wears a white lab coat with subtle blue piping along the zipper and collar, dark trousers, and scuffed grey sneakers, their hands clasped tightly in their lap with interlaced fingers betraying quiet tension. Behind them, blurred shelving units and indistinct scientific apparatus fade into the gloom. The camera executes a slow, deliberate tilt downward, tracing the subject’s form until it settles on their shoes, maintaining a restrained, static environment with no other characters or movement.\n\nThe soundscape mirrors this visual descent with precise, escalating unease. A steady, low-frequency mechanical hum dominates from the opening frame, suggesting proximity to heavy machinery or ventilation systems in an acoustically dry, enclosed space. Just a second in, a high-pitched electronic whine fades in, its timbre reminiscent of a charging capacitor or ramping diagnostic scanner, gradually intensifying and climbing into the upper-mid frequencies until it becomes the dominant auditory force. There is no dialogue, music, or human vocalization—no breathing, footsteps, or cloth rustle—leaving the subject physically still and emotionally restrained. The alignment of the camera’s downward drift with the rising pitch of the machinery builds a palpable sense of suspense and technological dread, ending on a note of unresolved anticipation as the frame locks onto the scuffed sneakers.","video_1_relative_path":"videos/509859759cb62915.mp4","video_2_relative_path":"videos/388d9f3f2a96d27f.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_2/00000040","text_prompt":"Historical broadcast documentary style, captured in a static close-up with a shallow depth of field and warm, soft directional lighting against a palette of rich wood tones, stark black-and-white formal wear, and brushed silver accents. A middle-aged Caucasian man frames from the chest up, positioned slightly left of center in a wood-paneled studio. He wears a black tuxedo jacket over a crisp white dress shirt and a neatly tied black bow tie, complemented by round wire-rimmed spectacles and large, vintage-style black headphones resting over his ears. In the right foreground, a classic broadcast microphone with a silver spherical grille stands on a stand, its out-of-focus presence partially obscuring his face and anchoring the scene’s mid-twentieth-century atmosphere. The background remains deeply blurred, keeping all visual focus on the speaker, who maintains an upright posture, a serious and focused expression, and occasional natural blinks as he faces the camera.\n\nA calm, authoritative male voice in a deep, resonant Received Pronunciation British accent begins, stating \"His Royal Highness the Duke of York will give his inaugural broadcast.\" The delivery is steady, deliberate, and precisely articulated, carrying the gravity and formality of a historic radio announcement. The audio signal is clean and centered, devoid of music, ambient noise, or sound effects, with only a faint natural studio resonance underscoring the intimacy of the moment. His measured pace and unwavering tone command full attention, transforming the quiet, motionless frame into a solemn, documentary-like broadcast that feels both immediate and timeless.","video_1_relative_path":"videos/ef3d7071abf13c4c.mp4","video_2_relative_path":"videos/2f3d817cc07b8482.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/movie/movie_2/00000063","text_prompt":"A moody, noir-inspired tableau opens in a dimly lit, narrow interior that feels like a basement or utility room, captured in a locked-off medium-wide shot angled slightly from below. An elderly man with white hair sits on the left side of the frame, waist-up, dressed in a dark pin-striped suit and black bow tie. A thick cigar rests between his lips, its ember casting a faint glow, while his right hand loosely grips a black rotary telephone receiver at his side and his left hand rests on his thigh. Directly before him on a stone ledge sits a vintage rotary phone base, a half-filled glass tumbler, a crystal decanter of amber liquor, and a single white candle in a twisted metal holder, all beneath a rectangular window that opens into absolute darkness. A single warm light source off-camera to the left carves strong chiaroscuro across his face and illuminates the slow, deliberate curls of smoke rising into the air.\n\nAs the moment unfolds, the man lifts his left hand, draws the cigar from his mouth, and brings it back for a measured puff. The action is accompanied by a soft inhalation followed by a controlled exhalation, the quiet airflow catching briefly as it passes through the tobacco. Throughout the sequence, the atmosphere remains heavy with tension and quiet contemplation, anchored by a barely perceptible low-frequency hum that suggests distant machinery or electrical infrastructure. There is no dialogue or music, only the intimate foley of wool shifting against his trousers and the steady rhythm of his calm breathing. The frame holds completely still, letting the interplay of shadow and warm light, the drifting smoke, and the near-silence build a mood of mid-twentieth-century sophistication laced with quiet mystery.","video_1_relative_path":"videos/170a019017d32710.mp4","video_2_relative_path":"videos/6d9b8dc7f14ee2ee.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/multitalker/multitalker_1/00000027","text_prompt":"Cinematic corporate drama unfolds in a static medium close-up with shallow depth of field and eye-level framing, bathed in high-key soft daylight diffused through closed white horizontal blinds. The cool-neutral palette of navy, charcoal, and white establishes a sober business environment with minimal shadows. A middle-aged East Asian man sits in a black leather chair at a conference table, dressed in a dark navy-to-black suit with a matching shirt and tie, his short hair neatly combed with grey at the temples. Behind him, a slim vertical window frame and a wall-mounted fixture fade into a softly blurred background. A low, sustained electronic pad hums beneath the tense atmosphere as he speaks in measured Standard Mandarin, his tone serious yet tinged with wry resignation. He clasps his hands, briefly raises them for emphasis, and remarks, “洪氏集团是块硬骨头，很难啃吧。”\n\nA straight cut shifts to a matching medium close-up of an East Asian woman seated opposite him, maintaining the same lighting, color design, and blurred window-blinds backdrop for seamless spatial continuity. She wears a dark plaid blazer over a crisp white collared shirt layered atop a black turtleneck, her long dark hair softly waved and parted to one side. Her posture is upright, hands folded neatly on the tabletop, gaze fixed slightly off-camera toward her counterpart. The ambient synth drone persists at a low volume as she responds in calm, deliberate Standard Mandarin, her expression composed but earnest. Acknowledging the weight of the situation, she states firmly, “与洪氏集团的谈判失利，确实责任在我。” The camera holds steady on her face, preserving the subdued, tense mood of the post-negotiation debrief as the electronic ambience continues uninterrupted.","video_1_relative_path":"videos/81433a61ed8bdbfd.mp4","video_2_relative_path":"videos/c8482ead63e667f8.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/music/music_1/00000009","text_prompt":"A static medium close-up frames a young woman seated before a professional studio microphone, centered against a plain, light-colored wall. Soft, diffused frontal illumination washes over her evenly, casting no harsh shadows. She wears large over-ear headphones and an off-the-shoulder top with a subtle snakeskin texture in muted greenish tones, her long, dark wavy hair framing her face symmetrically. The composition is minimalist and acoustically neutral, eliminating all distractions to focus entirely on her performance. As the scene begins, her mouth closes after a prior phrase, followed by a slight forward head tilt and a barely perceptible inhale. A solo acoustic steel-string guitar enters cleanly, fingerpicked arpeggios in G major establishing a steady, intimate rhythm at roughly seventy-two beats per minute. Her lips shape the next words, and a clear, tender female voice emerges, singing \"I’ll be loving you ‘til we’re seventy\" with precise articulation and gentle emotional expression.\n\nAs the vocal line continues, her eyebrows lift subtly and a warm smile begins to form, blooming into a broad, joyful grin that shows her teeth and crinkles the corners of her eyes. The sustained note on \"seventy\" carries a gentle vibrato, perfectly synchronized with the rise of her cheeks and the rhythmic movement of her jaw. The guitar accompaniment remains clean and bright, layered with a moderate natural room reverb that gives the space a small-to-medium untreated acoustic quality, while the background stays virtually silent save for a faint, high-frequency preamp hiss. Throughout the take, the camera remains completely still, maintaining an unbroken focus on her expressive delivery. As the final syllable is held, her head tilts back minutely and her shoulders relax, the music continuing softly beneath her voice before the sequence concludes abruptly mid-note, cutting both image and sound simultaneously without a fade-out.","video_1_relative_path":"videos/5d5ae15bf03ebf1b.mp4","video_2_relative_path":"videos/18df67402d32bd90.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/music/music_1/00000048","text_prompt":"A contemporary folk singer-songwriter scene unfolds in soft dusk light, shot on a gentle prime lens that frames a young woman with long dark hair seated on the weathered stone steps of a grand classical building. She wears a white short-sleeved T-shirt, denim shorts, and tall brown boots, with a light-brown acoustic guitar resting across her lap and a capo clamped on the neck. Positioned directly in front of her is a microphone on a stand, connected by a trailing black cable. The camera opens in a medium shot from mid-thigh up, then slowly pans left, gradually revealing a quiet paved walkway, distant streetlights, and the faint silhouettes of trees and parked cars against the fading evening sky. Her right hand alternates between delicate fingerpicking and gentle strumming while her left hand shifts smoothly through chord shapes. She maintains a focused, restrained expression, occasionally glancing down at the fretboard or lifting her gaze briefly toward the lens.\n\nThe soundscape is an intimate, clean recording of a solo female vocal performance accompanied by steel-string acoustic guitar, delivered in a clear, slightly breathy English tone at a moderate, steady tempo. As she sings, her vocal phrasing aligns perfectly with the arpeggiated fingerstyle accompaniment, creating a gentle, emotionally resonant ballad. A clear, slightly breathy female voice begins singing, \"These broken wings, now learning to fly,\" her tone carrying a soft vibrato on the sustained notes, before continuing with the line, \"Through all your life,\" holding the final syllable with a quiet, natural decay. The audio is meticulously balanced and centered, stripped of all ambient noise, wind, or crowd sounds, leaving only the subtle texture of her breathing between phrases and the clean resonance of the guitar strings. The entire moment feels isolated and concentrated, a quiet artistic expression captured in the hush of early evening.","video_1_relative_path":"videos/0a9014245fd9a320.mp4","video_2_relative_path":"videos/b46dd1db330326c1.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/music/music_1/00000095","text_prompt":"Contemporary folk-pop ballad captured in a medium close-up with a low-angle perspective, set in a dimly lit, wood-paneled studio bathed in warm, low-key lighting that casts soft shadows and gently blurs the background. A man with short dark hair in a maroon collared shirt sings into a black microphone on a stand, his breathy, gentle lead voice carrying the main melody with focused intensity. Beside him, a woman with long brown hair wearing a dark gray V-neck top with cut-out shoulders strums a light-colored acoustic guitar, her mouth movements perfectly synchronized as she weaves soft, blended harmonies into the arrangement. The camera executes a slow, smooth pan to the right, gradually shifting the visual focus onto the male vocalist while the guitarist recedes slightly into the periphery, her head nodding gently in time with the steady rhythm. The sonic landscape is meticulously clean and acoustically controlled, dominated by the bright yet warm timbre of fingerpicked guitar arpeggios, understated bass pulses, and delicate brushed snare taps, all mixed with the dual vocals centered and forward. Subtle breaths catch between phrases, and the performers’ emotional engagement is palpable in their relaxed jaws and raised brows, yet the recording space remains utterly free of ambient noise, crowd murmur, or mechanical hum. The performance maintains a consistently moderate dynamic without crescendos or drops, building a reflective and heartfelt atmosphere that feels both raw and polished, until the audio and visual abruptly cut off mid-phrase, leaving the lingering resonance of an unfinished musical thought.","video_1_relative_path":"videos/eb04c45157ab2774.mp4","video_2_relative_path":"videos/2f8744f60a998bbf.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_1/00000049","text_prompt":"A cinematic close-up in the style of intimate documentary realism, captured with a macro lens and soft, directional lighting that carves gentle shadows beneath the fingers while catching the glossy sheen of black keycaps. The camera sits slightly elevated and angled downward, isolating the hands and keyboard against a uniformly dark, out-of-focus background that strips away all environmental context. A short-sleeved pink top peeks into the upper right corner as both hands move rapidly and rhythmically across the keys, executing frequent lateral shifts and varied input patterns that alternate between staccato bursts and deliberate, single-press pauses. The audio landscape is acoustically dry and perfectly synchronized to the visual motion, dominated by the crisp, percussive clack of mechanical switches. Each finger depression triggers a bright, metallic click followed by a softer, resonant thock, their tempo ebbing and flowing with a natural human cadence. Set in a virtually silent room devoid of ambient hum, music, or vocalization, the scene transforms the physical act of typing into a hypnotic, meditative soundscape, evoking a quiet intensity and the concentrated rhythm of modern labor.","video_1_relative_path":"videos/cc113534f78c2553.mp4","video_2_relative_path":"videos/8f39724b45e8ef97.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_2/00000001","text_prompt":"Cinematic documentary style, handheld camera with a slight natural shake, overcast daylight casting a muted, desaturated palette across an urban street intersection. The lens pans left to right, tracking a white Vauxhall Vectra police cruiser as it executes a slow right turn from a side road onto the main thoroughfare. The vehicle is wrapped in high-visibility Battenburg markings with large blue and yellow checkerboard panels, and bold blue POLICE lettering stands out against its doors and bonnet. Above, a roof-mounted emergency light bar flashes alternating blue and red strobes in rapid succession, perfectly synchronized with a loud, dual-tone electronic siren that cycles between two pitches at a fast tempo. A lower-frequency mechanical wail swells and dips in volume as the cruiser approaches the lens, dominating the soundscape and completely masking any ambient traffic or pedestrian noise.\n\nAs the patrol car straightens into the lane, it accelerates forward, moving out of frame to the right while the siren maintains its intensity before gradually fading into the distance. The camera lingers briefly on the static urban backdrop, revealing a modern multi-story building with dark-tinted windows and a clear sign reading Walsall Police Station above its entrance. Behind a black metal fence, several parked cars sit quietly, while a yellow-and-blue keep-left bollard marks the curb. Green directional road signs stack vertically in the background, pointing toward the M6 South, the Ring road A4148, Lichfield, Brownhills, and Birmingham, with a secondary brown panel below indicating the Leather Museum, Arboretum, and Library. The scene closes on this quiet contrast between the receding emergency response and the still, overcast cityscape, leaving only the residual tail of the siren to underscore the moment’s urgency.","video_1_relative_path":"videos/28f5f3c826e56a49.mp4","video_2_relative_path":"videos/36330c545ab4e6ec.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_2/00000017","text_prompt":"Cinematic coastal study, shot on a static low-angle lens positioned at the water’s edge under a muted, overcast sky. The composition is anchored by a centered horizon line that cleanly divides pale gray clouds from turquoise-green ocean, while damp, packed sand in the foreground catches soft, diffuse highlights. Far out on the swells, two indistinct dark silhouettes bob rhythmically, adding scale without breaking the isolation. The audio landscape opens with the continuous, immersive roar of surf, beginning with a low-frequency rumble that swells in texture as the first gentle wave approaches. It crests near the camera with a broad-spectrum crash and splash, immediately receding into a quiet fizz of popping bubbles and draining water.\n\nA second, heavier wave follows, its deeper resonant growl building into a more percussive impact that violently collapses against the shore. A spray of frothy white water flicks across the lower frame, momentarily blurring the view before sliding back seaward, leaving behind a brief acoustic lull filled only with the granular hiss of retreating foam. The third wave rises smoothly, its greenish-blue face catching subtle shifts in the flat daylight as it breaks into a lateral spread of whitecaps and shallow rivulets. The corresponding soundscape mirrors this motion with a crisp, airy crackle followed by a soft, gurgling decay as water filters through the sand. Throughout the sequence, the camera remains fixed, maintaining an intimate ground-level perspective that captures the hypnotic, unbroken cycle of tide and sound. Stripped of all artificial noise, voices, or mechanical hum, the scene breathes as a meditative, raw portrayal of nature’s constant rhythm, where every visual swell and acoustic transient aligns in seamless, cinematic harmony.","video_1_relative_path":"videos/5331005134e7be3f.mp4","video_2_relative_path":"videos/0ab0b5ae8fc89031.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_2/00000034","text_prompt":"A crisp, instructional product demonstration shot with a clean, documentary-style lens and soft, even studio lighting, rendered in a muted earth-tone palette punctuated by vivid greens and cool cyan accents. The sequence opens on a tight close-up of a man’s hands against a dark, indistinct background, gripping two black electronic devices. His left hand holds a compact rectangular transmitter featuring four round buttons and three small LED indicators glowing red, blue, and green, while his right hand cradles a smaller handheld unit topped with two silver-tipped metal prongs and a steady blue LED near its base. A sharp, high-pitched electronic beep cuts through the quiet room as his thumb presses a button, followed by the faint, tactile rustle of plastic casings. A calm, neutral British male voice begins, stating \"…and you’ve got a nice high volume on the head, so you can hear it clearly across the room.\" As he speaks, he tilts the handheld unit slightly toward the camera, letting the blue LED catch the light.\n\nA hard cut widens the frame to a medium shot, revealing the presenter seated behind a glass-top table. He wears an olive-green zip hoodie over a grey crew-neck sweater, his short brown hair neatly trimmed. Behind him, a large promotional poster for the device stands against a brick wall, while daylight streams through a window to frame a potted golden-leaf tree. On the table rest a second identical handheld unit, a black power adapter with a green indicator light, and a coiled black cable. The presenter continues, his right index finger hovering over the transmitter’s buttons as he gestures outward to explain the controls. Three rapid, staccato electronic beeps sound in sync with his movement, confirming the input. He adds, \"So to adjust the sensitivity, you simply press and hold the top button until the indicator flashes.\" The lighting remains soft and even throughout, casting no dramatic shadows, while the steady room tone and precise audio cues maintain a straightforward, utilitarian mood focused entirely on the equipment and its operation.","video_1_relative_path":"videos/cf1229b89564e52f.mp4","video_2_relative_path":"videos/d2ee5c684eea0a9d.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_3/00000076","text_prompt":"A candid, handheld medium shot in naturalistic outdoor lighting captures a young boy seated on a large red riding lawnmower, positioned on a wide expanse of uniformly mowed green lawn under an overcast sky. Diffuse daylight casts soft shadows and lends a muted, natural color palette to the scene, where distant tree trunks and faint vertical poles fade into the background. The camera sways gently with natural handheld motion, tracking the mower as it begins to roll forward. The boy, dressed in a black long-sleeved shirt with a red-and-gold graphic, gray sweatpants with white side stripes, and dark sneakers, initially faces left before turning his head toward the lens. He breaks into a broad smile, raises his right arm high in a playful wave, and then lowers it back to his lap as the machine gathers slight momentum. The lawnmower itself is detailed with a prominent circular red cutting deck, a black steering wheel mounted on a tall column, and a rear grass collection bag partially shielded by clear plastic.\n\nAs the front wheels turn and the rear tires churn through the grass, a loud, continuous mechanical engine noise dominates the soundscape. The audio is a relentless blend of low-frequency combustion rumble, mid-range metallic whirring, and rhythmic internal clatter, punctuated by the faint broadband hiss of tire-on-grass friction that grows slightly more pronounced as the mower picks up speed. The open-air acoustics carry the mechanical drone with minimal reverberation, leaving only the boy’s barely perceptible breaths beneath the overwhelming, immersive roar of childhood play and machinery.","video_1_relative_path":"videos/03e7c11ddecfa302.mp4","video_2_relative_path":"videos/0145164f9dd868ee.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_3/00000084","text_prompt":"A cinematic low-angle static shot captures the interior of a historic stone bell tower bathed in bright daylight streaming through large arched openings. The camera remains fixed, emphasizing the monumental scale of the towering masonry walls and the massive bronze bells suspended from heavy wooden beams. In the foreground on the right, a man with tousled brown hair, wearing a dark green knitted sweater and glasses, grips a thick rope with both hands. His posture is tense and focused, shoulders bracing as he pulls rhythmically to swing the nearest bell. Behind him, partially silhouetted against the intense white light, a second man in a dark jacket operates the adjacent bell mechanism, his back mostly turned. The aged bells, their surfaces marked by oxidation and grime, swing back and forth with heavy momentum. As they move, they produce deep, resonant metallic clangs that echo powerfully through the enclosed space, creating overlapping reverberations with rich harmonics and long decay tails. The acoustic environment is dominated by the raw, physical impact of metal against air and structure, layered with the subtle creaks of stressed wooden beams, the faint rustling of fabric, and the occasional sharp exhale of exertion from the foreground ringer. The absence of speech or music focuses entirely on the labor-intensive tradition of manual bell-ringing, conveying a palpable sense of architectural grandeur and raw acoustic power.","video_1_relative_path":"videos/05737119578be79b.mp4","video_2_relative_path":"videos/dcfd1b592bee0e66.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_4/00000045","text_prompt":"A cinematic winter commercial opens in a static medium shot, bathed in the dim, cool palette of a snowy night, capturing a couple bundled in heavy winter wear seated in a sleigh amidst a dense, drifting forest. The man wears a patterned sweater and scarf, while the woman’s long windswept blonde hair peeks from beneath a fur-lined coat; both hold drinks, their breath pluming in the frigid air. The quiet stillness is abruptly shattered by a sharp, surprised male voice cutting through the cold, exclaiming “Oh!” immediately followed by a low, resonant thump that suggests a sudden impact or jolt, injecting a moment of tension into the serene environment.\n\nThe frame hard-cuts to an extreme close-up of a Bud Light can spinning rapidly against a dark backdrop streaked with blue and white light trails, its motion blur creating a disorienting, hyper-stylized visual rhythm. As the label flashes into partial clarity before dissolving back into abstraction, a deep-voiced male announcer delivers a measured, confident cadence, stating “Fresh, smooth, real,” with each word punctuated by sharp, percussive hits that resemble stylized whip cracks. Beneath this, a minimalist electronic underscore of sustained bass tones and sparse synthetic pads swells subtly, bridging the scenes with a tense, atmospheric pulse.\n\nAnother swift cut reveals two figures walking side-by-side along a foggy, moonlit forest path blanketed in fresh snow, their heavy winter layers—tan jacket over red shirt, dark coat with a black-and-white patterned scarf—swaying with their steady pace. Laughter erupts openly from the pair, their faces alight with amusement and exhilaration as they move through the quiet woods. The announcer’s voice returns with a playful, theatrical inflection, adding “Bud Light. Cool a rocket sled,” his tone perfectly matching the whimsical energy of the scene. Faint footsteps and the crisp chill of the winter air ground the moment, resolving the rapid visual shifts into a cohesive, sensory-driven narrative of cold, motion, and camaraderie.","video_1_relative_path":"videos/88d16d864857e858.mp4","video_2_relative_path":"videos/5d1bde5d2c783afc.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_4/00000058","text_prompt":"Cinematic medium close-up, static camera, warm low-key lighting in a softly cluttered bedroom that feels intimate and unscripted. The background holds a large cylindrical white bolster pillow, a blue-and-white tissue box, folded linens, and the faint silhouette of a baby bouncer nestled in the deeper shadows. Centered in the frame, a young child sits cross-legged on white bedding, wearing a sleeveless red dress dotted with tiny white polka dots and a small yellow emblem, her short black hair secured with a delicate clip at the crown. She bursts into uninhibited laughter, mouth wide open and eyes crinkled, her body rocking gently back and forth as her hands flutter excitedly near her lap, fingers splayed and occasionally tapping the mattress.\n\nA large pink plush toy sweeps abruptly into the foreground from the bottom right, momentarily obscuring her torso in a swift, playful gesture from an unseen off-camera presence. The child’s laughter intensifies in response, her head tilting forward and shoulders bouncing with renewed delight as the soft object glides past and exits the frame. The audio landscape is entirely dominated by her spontaneous vocalizations—high-pitched, breathy giggles punctuated by sharp, staccato squeals and rhythmic breathing—layered over the subtle rustle of fabric, a faint whoosh as the toy cuts through the air, and a low, consistent hum from unseen household appliances. With no music or dialogue to distract, the scene holds its candid warmth, closing on the child still smiling broadly, bathed in the same gentle light, her quiet domestic world framed in pure, innocent joy.","video_1_relative_path":"videos/853ed3d56b1db419.mp4","video_2_relative_path":"videos/7caadd03efd947a4.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_4/00000065","text_prompt":"Cinematic wide shot, slightly elevated, capturing a turbulent coastal inlet beneath a heavy overcast sky. The desaturated palette of gray-green waters and weathered wood sets a bleak, awe-inspiring tone as choppy waves crash against jagged rocks and the clustered hulls of several small wooden boats, their yellow and red paint faded beneath blue tarps. In the foreground, a lone rowboat tethered to a larger vessel bobs erratically, its bow dipping into foamy swells before rising again, while ropes dangling from nearby craft snap taut and slack with each surge. Behind them, steep dark cliffs rise slick with sea spray, patches of hardy green vegetation clinging to their upper slopes, all softened by a faint atmospheric haze that blurs the distant hills. The camera holds mostly static before executing a subtle pan to the left, gradually revealing a red-hulled dinghy drifting in the mid-ground and the edge of a yellow kayak at the frame’s boundary. No figures are present, leaving the scene to the raw violence of the elements. The soundscape immerses the viewer in a relentless stereo field of wind and surf, dominated by a low-frequency rumble and high-pitched hiss that swells with gusts and wave impacts. Beneath the roar, the occasional groan of timber under stress and the faint rhythmic lapping of ripples against mooring lines underscore the isolation and elemental power of the storm-battered harbor, creating a tense, unbroken atmosphere of nature’s fury.","video_1_relative_path":"videos/0766f9c89051ce9e.mp4","video_2_relative_path":"videos/d328b6799be270e9.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/physics/physics_4/00000096","text_prompt":"A raw, immersive first-person adventure sequence captured on a handheld body-mounted camera with a wide-angle lens, bathed in the flat, diffused light of an overcast winter sky. The frame opens at the edge of a steep, snow-lined embankment, where a figure clad in dark winter gear and bright yellow boots balances precariously above a violently churning current. The water is a murky green-brown, frothing with white rapids as it rushes downstream, flanked by bare, leafless trees on the far bank. The camera tilts downward, emphasizing the sheer drop and the river’s relentless velocity, while the soundscape is dominated by a dense, continuous roar of rushing water, faint wind buffeting the microphone, and the subtle rustle of equipment handling.\n\nSuddenly, the viewpoint lurches forward and downward as the camera plunges off the ledge into the torrent. A chaotic splash engulfs the lens, obscuring visibility with swirling bubbles, thick foam, and distorted light refracting through the liquid. Beneath the surface, the camera tumbles, capturing blurred, rippling glimpses of the water above as the audio texture shifts dramatically from an open-air roar to a deep, gurgling underwater rumble. Short bursts of escaping air punctuate the muffled acoustics until a sharp mechanical click marks a momentary stabilization, after which the image dissolves into darkness and motion blur. The soundscape abruptly cuts to a residual low-frequency water rumble before fading into silence, leaving only the visceral, unbroken immediacy of the submersion.","video_1_relative_path":"videos/cc907ad41c9ba950.mp4","video_2_relative_path":"videos/83bc27377f037118.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/podcast/podcast_1/00000050","text_prompt":"The scene opens in a medium close-up on a woman standing center-stage against a dark red curtain backdrop. She has long, dark, wavy hair and wears a black blazer over a V-neck top, accented by a gold chain necklace and small earrings. Warm, focused lighting sculpts her face with soft shadows while the background stays dim. A confident, expressive female presenter begins, stating \"But in my heart.\" Her hands are raised at chest level, fingers loosely curled, and the subtle room reverb of a large auditorium fills the space, accompanied only by a faint HVAC hum and the quiet rhythm of her breathing.\n\nA hard cut shifts to a wider, static shot from stage right, revealing tiered seating filled with an attentive audience of varied ages, some wearing lanyards and badges, others holding notebooks or phones. The speaker now appears in profile, continuing her address: \"I always wanted to run.\" As she speaks, her movements grow more animated, hands sweeping outward and inward to punctuate her words. She maintains steady eye contact with the crowd, adding: \"The sitting congresswoman had been in my district since 1992. She had never lost a race.\" The audience reacts with quiet engagement—glasses adjusted, notes glanced at, bodies leaning forward—while the pristine audio remains clean, letting the natural acoustics and her clear, emphatic delivery anchor the scene.","video_1_relative_path":"videos/cfc906d5335f8e6b.mp4","video_2_relative_path":"videos/f7a5191899a39cf2.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/podcast/podcast_1/00000061","text_prompt":"A static medium shot captures a brightly lit classroom or lecture hall, illuminated by even overhead fluorescents that cast soft, natural shadows. Behind a light-grey lectern with cabinet doors and an open compartment holding scattered papers stands an East Asian female presenter with dark hair pulled back, wearing a brown short-sleeved cardigan over a white top. To her left, a large projection screen displays a familiar Windows desktop with a blue abstract wallpaper, recognizable system icons, and a prominent Chinese character in the lower-right quadrant, while a small green chalkboard mounted above the desk bears the word “font” written in white chalk. Speaking into a gooseneck microphone, a calm, measured female voice begins, stating \"The rules that govern us govern our speaking, helping our speaking find its proper cadence.\" She gestures subtly, first raising her right hand near her chest before lowering it toward the lectern, and briefly glances down at her notes before resuming eye contact. Her delivery is clear and instructional, accompanied by a faint electronic hum from the room’s equipment and mild natural reverb that gives the space an acoustically controlled yet open quality. She continues, adding, \"Let’s look at the two expressions here,\" as her hand settles near the lectern surface.\n\nAn abrupt hard cut shifts the frame to a minimalist graphic animation against a solid white background bordered by thin black lines at the top and bottom. Two stylized leafy branches extend horizontally from opposite edges, each featuring three rounded leaves rendered in varying shades of green. Centered between them rests a pale yellow circle containing a bold red dot, all elements remaining perfectly motionless. The presenter’s voice drops away instantly into complete silence, underscoring the visual transition and leaving a quiet, deliberate pause before any subsequent content begins.","video_1_relative_path":"videos/96c0103f63799255.mp4","video_2_relative_path":"videos/eb24a7a358ef204b.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/podcast/podcast_1/00000070","text_prompt":"Cinematic medium shot, static camera, warm spotlight against a dark backdrop with abstract red and blue light beams, a single female presenter stands center-stage. She wears a black blazer over a green top, accented by a silver statement necklace and hoop earrings, holding a yellow-and-black presentation clicker in her right hand. The camera remains fixed, drawing focus to her engaged, professional demeanor as she begins speaking with a calm, academic tone. A soft breath intake precedes her clear, measured voice, which carries a slight upward inflection on proper nouns. She raises her left hand, fingers curled in emphasis, while her gaze shifts naturally between the unseen audience and her notes.\n\nA calm, academic female voice begins mid-sentence, stating \"…for example, Nalini Ambady, a researcher at Tufts University, shows that when people watch thirty-second soundless clips of a real physician interacting with a patient.\" She continues without pause, her eyebrows lifting subtly on key phrases as she lowers and then raises her left hand to punctuate her point. The audio remains pristine, dominated entirely by her voice with only a faint rustle of fabric as her arms move and a barely perceptible ambient reverb suggesting a large auditorium space. The clicker is tapped lightly against her palm but produces no audible sound. As she finishes the sentence, her mouth closes gently, her posture softens, and her hands lower toward waist level. The lighting holds steady, casting soft shadows behind her, while the abstract background lights remain fixed, leaving a clean, authoritative silence as the scene concludes.","video_1_relative_path":"videos/1f2018b6ffe3a74c.mp4","video_2_relative_path":"videos/2c52e91c5d9515fd.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/podcast/podcast_1/00000089","text_prompt":"A locked-off medium close-up frames a blonde female news presenter speaking directly to camera in a live broadcast setting, her head and shoulders filling the vertical frame against a stylized blue backdrop bearing the faint lettering “WH” and “WA.” The lighting is bright, even, and strictly frontal, casting no shadows and rendering her skin in a neutral tone, while the camera remains completely static save for her natural micro-movements—subtle head tilts, deliberate eye blinks, and precise mouth articulation. The atmosphere is tightly controlled and serious, emphasizing the gravity of the political update without visual distraction.\n\nA calm, authoritative female voice with a General American accent delivers the report at a measured, conversational pace, her diction crisp and clear. She states, “Its decision making and whether or not the United States will be directly involved,” before pausing briefly to continue, “In light of that news, I have a message directly from the president, and I quote.” The audio bed remains clean and focused, carrying only her voice and a faint, steady electronic hum from the studio equipment, with no music, ambient noise, or overlapping dialogue to interrupt the delivery.","video_1_relative_path":"videos/2030cbdb206a7fc8.mp4","video_2_relative_path":"videos/870d2238f2de8585.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/voiceover/voiceover_1/00000021","text_prompt":"Cinematic documentary sequence. Natural daylight floods a rural courtyard, captured with a low-angle wide lens that establishes a weather-worn two-storey house with beige walls, blue window frames, and a tiled roof. The earth-tone palette grounds the scene as soft shadows fall across a yard scattered with firewood and debris. Three figures occupy the foreground: on the left, a young woman in a light green sleeveless dress and white sandals sits on a small wooden chair, her hair tied back, gazing downward with hands clasped in a slightly slumped posture. In the center, an older man in a grey short-sleeved shirt squats beside a dark bucket, his right hand working inside while his left steadies himself on a stone block. To the right, a middle-aged woman in a loose blue T-shirt and black trousers bends over a second bucket resting on a bamboo stool, both hands immersed as she prepares ingredients. Red vertical banners frame the doorway behind them, hinting at traditional customs. Over this quiet tableau, a calm, measured male Mandarin voice-over begins, stating \"用稻草反复熏烤，渗出鱼油，晾晒风干，便是最好的增味品。\" The narration is accompanied by a slow, lyrical guzheng melody floating above a faint bed of distant birdsong and rustling leaves.\n\nThe sequence then shifts to an extreme close-up, adopting a high-contrast macro perspective that isolates several small fish skewered lengthwise on thin wooden sticks. The camera executes a subtle lateral drift, keeping the deeply charred, glistening fillets in sharp focus while the background dissolves into a warm bokeh of orange and brown embers. Rendered oil beads on the scales and drips slowly, catching golden highlights against the deep browns and blacks of the char. A subdued synthesized string pad swells gently beneath the continuing guzheng arpeggios, enriching the texture without altering the unhurried tempo. The documentary tone lingers on the tactile, appetizing imagery, allowing the shimmering fish and the trailing acoustic music to hold the frame until the scene naturally fades.","video_1_relative_path":"videos/43db13613fedfc14.mp4","video_2_relative_path":"videos/61582ac765f63747.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_ltx_cross/voiceover/voiceover_1/00000061","text_prompt":"A cultural food documentary unfolds through locked-off close-ups and extreme close-ups, bathed in bright, diffuse lighting that shifts from warm earthy browns to cool pale ivory. The opening shot is a tight, low-angle view of a torrent of light-brown rice husks cascading downward onto a heaped mound within a muted metallic processing chute. Warm, even illumination gives the husks a gentle sheen as they tumble in rapid motion, accompanied by a soft rustling texture and a faint, underlying mechanical hum from unseen milling equipment. A calm, resonant male narrator in Standard Mandarin begins, stating \"After husking, the rice grains are plump and hard, with a clear, bright hue.\" The scene transitions to an extreme close-up of a human hand cupped beneath a steady stream of freshly polished white rice. The grains spill through the fingers like fine sand, each kernel catching the light to reveal a translucent, glassy surface. The camera remains perfectly still, allowing the crisp, dry patter of the cascade to blend with the ambient machinery. A high-angle view then reveals a broad, shallow metal tray being filled by a thick ribbon of rice pouring from above. The pale ivory grains spread across the surface like a sparkling, liquid sheet, gleaming under the bright industrial lights as the flowing sound of the harvest intensifies into a continuous rustle. The sequence concludes with another steady close-up of rice tumbling from a chute onto a growing pile below. Countless individual grains fall in a rhythmic cascade, glinting with subtle highlights as the instrumental score swells slightly but remains subordinate to the narrator’s final, confident declaration: \"This is the finest rice in China.\" The dense, layered rustle of the falling grain merges with the persistent low mechanical hum, painting a vivid portrait of agricultural excellence and culinary heritage.","video_1_relative_path":"videos/864ccbdbc3b03561.mp4","video_2_relative_path":"videos/f03363334aed3464.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/instruments/instruments_1/00000001","text_prompt":"Cinematic fixed shot, eye-level perspective, set in a quiet recording booth whose walls are lined with alternating black-and-white pyramid acoustic foam tiles. Under even overhead lighting that casts soft shadows and catches the glint of the bow, a man with short dark hair sits center frame in a grey sleeveless T-shirt and dark athletic pants. A framed certificate hangs high on the left wall, and an upright double bass rests against the right. He holds a large reddish-brown cello vertically between his knees, left hand poised on the neck, right arm drawing the bow downward from the frog to initiate a warm, resonant low C-sharp. The dry studio acoustics emphasize the instrument’s woody timbre and clear upper harmonics as his fingers press firmly, introducing a subtle vibrato that matches the gentle oscillation of his wrist.\n\nWithout pausing, he drives the bow back up, launching into a flowing legato descent. His torso rocks gently forward on down-bows and backward on up-bows, fully engaged in the phrasing. As the tempo accelerates, bow speed and finger motion quicken, producing a rapid sixteenth-note run that climbs through several octaves. The left hand executes swift position shifts and fluid slides, with faint fingerboard squeaks punctuating the motion, while increased bow pressure brightens the tone and swells the volume. The phrase peaks on a fortissimo high note, the bow drawn forcefully near the bridge, before immediately cascading downward in a rapid arpeggio. The camera remains completely still, tracking the precise synchronization between bow velocity, acoustic resonance, and the performer’s integrated body movement. The piece concludes with a decisive down-bow on an accented low G, held briefly before tension releases. His left hand lifts from the fingerboard, shoulders settle, and the bow rises as the note naturally decays into silence. The frame holds on the musician’s stillness, the room tone lingering in the intimate, unaccompanied space.","video_1_relative_path":"videos/e6e8b86b505511b3.mp4","video_2_relative_path":"videos/71b53a0834144651.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/instruments/instruments_1/00000009","text_prompt":"Cinematic medium shot, static camera, even frontal lighting, and a muted palette centered on a plain light-blue textured wall. A man with short dark hair stands in the frame, wearing a black T-shirt with an orange-and-white graphic print across the chest and shoulders. He holds a large, curved, light-brown ram’s horn horizontally with both hands, arms slightly raised to support its weight. Bringing the mouthpiece to his lips, he puffs his cheeks and purses his mouth, maintaining a steady posture and unblinking, focused concentration. The background remains completely uncluttered, devoid of any objects, decorations, or text, keeping the visual narrative entirely anchored to the performer and his instrument.\n\nAudibly, the scene is defined by a single, uninterrupted shofar blast that begins immediately and sustains a high-pitched, resonant, and metallic tone. Produced by forceful exhalation, the sound carries a dry, close-miked quality with only subtle fluctuations in volume corresponding to shifts in breath pressure, before cutting off abruptly without natural decay. There is no ambient noise, room reverberation, clothing rustle, or incidental handling sound, creating a stark, acoustically dead space that heightens the ritualistic atmosphere. The minimalist composition and clean technical execution emphasize the ceremonial weight of the act, leaving the resonant note to stand alone as a focused, intentional documentation of tradition.","video_1_relative_path":"videos/9a0128eadb5a40fa.mp4","video_2_relative_path":"videos/dfcdc6784df2a926.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/instruments/instruments_1/00000053","text_prompt":"A static medium-close shot frames a seated musician from the chest down against a plain white wall, bathed in even, neutral lighting that casts soft, clean shadows. The performer wears a dark navy short-sleeved T-shirt and black trousers, their face kept out of frame to focus entirely on the instrument and technique. They play a brown wooden BELTUNA accordion suspended by a black shoulder strap, their right hand executing rapid, precise strikes across the piano-style keys while the left hand rhythmically expands and compresses the bellows and presses bass buttons. The audio begins immediately at full volume with a lively, folk-dance melody in a bright major key, driven by an energetic tempo and rich harmonic accompaniment. Every physical movement syncs flawlessly with the sound: the bellows swell and contract in exact time with the musical pulse, finger attacks match note onsets, and button presses coincide with low-register tones. The recording is acoustically dry and close-miked, capturing only the crisp mechanical articulation of the instrument without ambient noise or room reverb. Dynamics naturally swell with the phrasing, never dropping below a vibrant mezzo-forte, as the visible exertion mirrors the volume peaks. The performance builds to a spirited climax before cutting off instantaneously mid-phrase, leaving no decay and preserving the intimate, studio-quality isolation of the solo piece.","video_1_relative_path":"videos/19e762e9f5cd425c.mp4","video_2_relative_path":"videos/ef25186885d01961.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/instruments/instruments_1/00000063","text_prompt":"Cinematic medium close-up, fixed camera, eye-level framing against a uniform light-blue backdrop, bathed in soft, diffused frontal lighting that eliminates shadows and accentuates the warm, glossy wood grain of a four-string ukulele. The instrument bears a black capo across the first fret, and the performer wears a white T-shirt with a yellow cartoon animal graphic visible in the pocket. The left hand grips the neck just behind the capo in a relaxed C-shape, knuckles forward and fingers arched, while the right hand pivots at the wrist, fingers curved for precision plucking. A gentle, bright ukulele tone begins as the thumb strikes the lowest string, immediately followed by the index finger on the adjacent string, forming a crisp two-note motif with a clear attack and soft, natural decay.\n\nWithout pause, the melody ascends as the left hand slides smoothly up the fretboard to the second fret, maintaining contact for a seamless pitch transition. The right hand responds with a flowing arpeggio, thumb, middle, ring, and index fingers striking the strings in succession, their subtle wrist rotation perfectly synchronized with the cascading notes. The tempo holds steady at a moderate pace, driving an even quarter-note pulse with light syncopation and a compact rise-and-fall melodic contour. The timbre remains bright yet mellow, each note ringing briefly before the next arrives, underscored by the occasional faint click of nail against string. As the phrase turns downward, the left hand glides back toward the nut while the right hand alternates between thumb and index strokes, creating a delicate call-and-response texture.\n\nThe final descent resolves gently toward the tonic, the right hand allowing the lowest note to sustain with relaxed finger pressure before hovering momentarily above the soundhole. The resonance fades naturally into a dry, close-mic’d silence with negligible room ambience, the consistent mezzo-piano dynamics shaped entirely by precise finger velocity rather than volume swells. As the last overtone dissipates, the performer’s hands relax and slowly lower just out of frame, concluding the phrase with technical clarity and calm precision. The entire scene remains visually and sonically uncluttered, focusing entirely on the intimate mechanics of the instrument and the smooth, unwavering flow of the solo melody.","video_1_relative_path":"videos/2446342b214add76.mp4","video_2_relative_path":"videos/378aa23ff9a9ded7.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/instruments/instruments_1/00000091","text_prompt":"A static cinematic medium shot frames a young trombonist from the waist up, standing upright behind a black music stand against a soft peach-colored backdrop bathed in warm, directional lighting. A professional microphone hovers just above him as he grips the brass slide with both hands, his posture disciplined and his gaze fixed forward in quiet concentration. The scene opens with a single, resonant trombone tone at a moderate volume, its warm, brassy timbre rich with harmonic overtones and a smooth, gentle attack. As he draws the slide outward, the pitch ascends from the middle register, the physical extension perfectly mirroring the rising fundamental frequency while mild room ambience adds depth to the clean, close-mic capture. The melodic line continues with a brief descending phrase, articulated with a lightly detached touch that creates a subtle rhythmic emphasis. His right hand retracts the slide swiftly, producing a short downward glissando that matches the falling pitch contour, his shoulders relaxed and breathing entirely silent. A new phrase begins, climbing stepwise in a slow, lyrical tempo before resolving downward. Both hands coordinate fluidly, the left guiding the slide through extended positions while the right stabilizes the instrument, subtle wrist rotations ensuring seamless transitions. Each upward glide correlates with a gentle crescendo in pitch, followed by a controlled pull-back that tapers the sound, occasionally catching shimmering overtones and the faint, natural friction of metal on metal. The performance concludes with a held low note, sustained without vibrato. The slide settles into its lowest position, and the performer holds perfectly still as the rich low-frequency content lingers, decaying slowly into pianissimo until the tone fades cleanly into silence, leaving only the quiet resonance of the space.","video_1_relative_path":"videos/a270328175eac4f1.mp4","video_2_relative_path":"videos/3c545e4b474321e9.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/instruments/instruments_2/00000042","text_prompt":"Cinematic wide shot, natural daylight, clean industrial palette: a solitary accordionist stands upright beside a concrete pillar in a vast, empty hall. Natural light filters through high windows, casting soft shadows across the concrete floor and green fencing in the background. The performer’s posture is relaxed, shoulders steady, gaze directed slightly forward-left, as he launches into a brisk, fast-paced melody. His right hand drives a rapid ascending arpeggio across the keys with crisp, staccato precision, while his left arm steadily expands the bellows to maintain a loud, consistent volume. The bright, reedy tone carries a slight nasal resonance, captured in intimate close-mic detail within an acoustically dry space that leaves no echo or ambient noise. As the phrase unfolds, his fingers slow into a smooth legato descent, connecting the notes with continuous bellows motion before settling into a brief, sustained pitch with a subtle vibrato. The motif then returns, mirroring the opening flourish with the same driving tempo and dynamic intensity, before resolving into a final, unwavering note that gradually diminishes as the bellows reach their full extension. The performance concludes with a clean cutoff, leaving only the faint mechanical click of keys and the quiet, focused presence of the musician in the sunlit hall.","video_1_relative_path":"videos/7b27b138b21fff1b.mp4","video_2_relative_path":"videos/02ac00f1470067a8.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/instruments/instruments_2/00000045","text_prompt":"A cinematic, static overhead shot captures a large concert glockenspiel resting on a black metal stand against a plain white backdrop, evenly lit with a clean, high-key palette. Only the performer’s forearms and hands enter the frame, gripping black mallets with round felt heads. The performance begins with a steady, alternating call-and-response motif across the upper rows, each impact producing a bright, bell-like metallic attack that lingers for a second before fading. As the tempo subtly accelerates, the hands launch into rapid sixteenth-note runs and cascading arpeggios, the right hand mirroring the left with staccato accents on the off-beats. The camera remains completely still, allowing only the fluid arcs of the mallets to move across the frame, while the audio stays clean and close-mic’d, with sharp percussive attacks blending into smooth, overlapping decays.\n\nThe passage shifts into a rhythmically complex interlude marked by syncopated accents and firmer strikes that widen the mallets’ arcs, followed by a sustained low note that grounds the texture. A descending legato phrase then unfolds as both hands glide across adjacent bars, blurring individual attacks while preserving the instrument’s characteristic ringing overtone. The energy culminates in a cadential ascent where the right hand climbs quickly to a high, resonant tone while the left punctuates with isolated bass-bar strikes, creating a climactic call-and-response. In the closing measures, the tempo relaxes as the opening two-note motif returns, allowing each note’s resonance to bloom fully. A deliberate double-hit on a mid-register bar yields a richer harmonic stack, after which both mallets hover momentarily above the keyboard before retreating out of frame. The lingering metallic shimmer fades naturally into silence, concluding the technically polished solo performance without abrupt cuts or extraneous noise.","video_1_relative_path":"videos/bfefc4ad852a30d9.mp4","video_2_relative_path":"videos/ef5c07d9910ec80a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/movie/movie_1/00000005","text_prompt":"A tense, fast-paced thriller sequence opens inside a dimly lit industrial garage at night, bathed in harsh yellow-orange overhead light that carves deep shadows across the concrete floor. A handheld, shaky camera tracks laterally as four figures sprint in panic from left to right. In the foreground, a woman with long dark hair, clad in a light grey tank top and white pants, screams with her mouth wide open, while an East Asian man in a tan jacket over a black shirt clutches her shoulder, glancing back in terror. Behind them, two other men in casual shirts flee with tense expressions, passing the hood of a silver car parked at the edge of the frame. The audio is dominated by a relentless, rhythmic cascade of metallic clanking and rattling, layered with a high-pitched electronic whine and a faint mechanical rumble that matches their frantic footfalls. A sudden hard cut shifts to a high-angle, top-down perspective of the same space, now revealing a scene of devastation: scattered tires, three barrels, and motionless bodies strewn across the floor. Two figures in bright orange jumpsuits kneel over an injured person near the center, while another figure in dark clothing crawls away toward the upper left. The camera tilts slightly downward as the chaotic clatter begins to fade, giving way to a low, ominous drone that builds tension in the sudden stillness.\n\nThe edit abruptly shifts to a smoky interior washed in cool blue light, where a Black man with a shaved head and goatee, wearing a beige jacket over a dark T-shirt, grips the steering wheel of a vehicle cockpit from behind. Thick white smoke drifts through the confined space, partially obscuring rows of glowing digital panels that display the words “CREW” and “870” in backlit blue. He glances sideways with alarm as the ambient sound deepens into a heavy engine hum punctuated by intermittent electronic beeps and crackles. A sharp cut isolates a small, translucent yellow capsule rotating slowly against a pitch-black void, its internal mechanics—circular sensors, thin metallic rods, and rhythmically blinking red indicators—revealed in precise detail. Beneath this image, a rising synthetic tone swells to a crescendo. The perspective snaps back to the overhead warehouse view, now crowded with additional casualties and a lone figure in a red jumpsuit standing near the barrels. Blood stains the silver car’s hood as dust motes hang in the air, and a distorted explosion boom erupts, followed by shattering glass and collapsing metal that settles into a heavy, reverberant thud and lingering electrical buzz. The sequence concludes with an extreme low-angle close-up of the East Asian man from the opening shot, lying supine on the concrete. His face fills the frame, eyes wide and staring upward, lips parted in shock, glistening with sweat and blood. As the surrounding darkness isolates him, the low-frequency rumble and distant crackling fade into an abrupt, echoing silence.","video_1_relative_path":"videos/2cd1439e649fb452.mp4","video_2_relative_path":"videos/1c585fc3ca1ef8e3.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/movie/movie_1/00000012","text_prompt":"Cinematic sci-fi sequence, wide high-angle shot, natural sunlight lighting, cool metallic palette against deep space black and Earth’s blue-white curve. The scene opens with the curved horizon of the planet filling the lower frame beneath a star-speckled sky, while a massive, multi-module orbital station drifts slowly through the vista. Its metallic hull catches direct sunlight that carves sharp highlights and deep shadows across interconnected trusses, cylindrical tanks, and angled solar arrays. The camera glides leftward while tilting upward, gradually tightening into a medium shot that emphasizes the station’s imposing scale against the swirling white cloud systems below. As the perspective shifts, a compact, angular secondary craft emerges from behind the main structure on the right, rotating subtly to reveal a green-and-white livery marked with the bold sans-serif lettering “RDA” and “ORPHEUS STAR” on its upper modules.\n\nA continuous, low-frequency synthesized drone anchors the atmosphere, layered with a steady, subtle electronic hum that evokes powered machinery in a vacuum. Faint rhythmic pulses and crisp, sub-second digital beeps punctuate the soundscape, suggesting active telemetry and system sweeps. Over this minimalist electronic bed, a calm, professional male voice filters through a communications channel with a neutral American accent and light static texture, stating, “Sakura One Six, copy your LMS master arm on.” The absence of human presence or environmental noise reinforces the sterile, automated nature of the operation, while the juxtaposition of serene planetary beauty and precise industrial machinery cultivates a tense, technologically charged mood of isolated grandeur.","video_1_relative_path":"videos/63e1bcbec010d9c5.mp4","video_2_relative_path":"videos/e4ec78222b88fd81.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/movie/movie_1/00000043","text_prompt":"A surreal sci-fi fantasy sequence opens on a wide, static shot framed in deep indigo and violet, capturing a starry void scattered with irregular, dark gray floating rock formations. A massive vertical column of swirling luminous energy dominates the left third, pulsing with cyan, turquoise, and magenta light as its ribbons twist upward like ethereal smoke. Diegetic illumination radiates solely from this vortex, casting a cool blue glow across the undersides of the nearest stone islands. The camera initiates a slow, smooth downward tilt, gradually unveiling a layered cosmic landscape before a solitary figure drifts into view from the bottom right. The young traveler, clad in loose, textured robes that read as pale grey under the ambient light, halts with shoulder-length dark hair catching the faint luminescence. Standing still and facing slightly away, he gazes contemplatively toward the swirling energy column, his posture radiating quiet observation.\n\nThe atmosphere is defined by a relentless, synthetic soundscape that blends a pervasive low-frequency rumble with a sharp, rhythmic whir-click pattern, evoking the steady hum of massive turbines or heavy machinery operating within a vast, enclosed dimension. This mechanical drone lacks natural reverb, lending the environment a processed, otherworldly quality that contrasts sharply with the organic drift of the floating rocks and the fluid dance of the light pillar. No footsteps, breathing, or dialogue disturb the silence; the audio remains constant and unfluctuating, reinforcing a profound sense of isolation and the seamless fusion of arcane magic and advanced technology. The visual stillness of the lone observer against the pulsing cosmic machinery creates a meditative, almost sacred moment of witnessing, where the heavy industrial hum serves as the only heartbeat in a silent, neon-drenched void.","video_1_relative_path":"videos/4dd904c6667360b0.mp4","video_2_relative_path":"videos/641d3d24db3d6937.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/movie/movie_1/00000049","text_prompt":"A cyberpunk noir thriller captured in a wide, static shot, drenched in a palette of deep blue, cyan, and crimson. The scene opens on a narrow, rain-soaked urban alleyway at night, where heavy rain falls in continuous streaks, carving ripples into the slick asphalt that mirrors the ambient glow of flickering neon signs and distant street lamps. Industrial facades line both sides, their fire escapes, metal roll-up doors, and graffiti-tagged dumpsters shrouded in a thick, steamy mist that diffuses the light into a hazy, atmospheric haze. From the darkened background, a lone figure sprints toward the camera, a medium-sized dog trotting faithfully at their heels. As they close the distance, overhead lighting and glowing signage gradually pierce the downpour, sharpening their silhouettes while keeping their features obscured by shadow and wet hair. The dog occasionally glances up at the runner, emphasizing their shared urgency as they nearly fill the mid-frame.\n\nThe soundscape opens with a low, ominous electronic drone that establishes immediate tension, soon joined by rhythmic, percussive synth hits that pulse steadily like a frantic heartbeat or distant machinery. A mid-range arpeggiated synth line weaves through the mix, repeating in a steady two-second cycle, while high-pitched metallic percussion layers gradually intensify, mirroring the runner’s approach. Environmental foley grounds the scene: the constant broad-spectrum hiss of heavy rainfall, occasional wind gusts rattling through metal structures, and the hollow splashes of irregular footsteps breaking through shallow puddles. Clothing rustles with each stride, accompanied by the faint, rhythmic panting of the dog and the runner’s short, controlled breaths, all subtly masked by the bass-heavy score. Distant traffic rumbles remain barely perceptible, reinforcing the isolation of the alley. As the figures advance, the music swells in urgency without overpowering the natural soundscape, culminating in a sharp, echoing splash that suggests an imminent transition into confrontation or revelation, leaving the viewer immersed in a tense, sensory-driven pursuit through urban decay.","video_1_relative_path":"videos/29417df773b9d65e.mp4","video_2_relative_path":"videos/1214dd9c7d713b81.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/multitalker/multitalker_1/00000015","text_prompt":"A locked-off medium-wide shot frames a small, warmly lit dining room bathed in soft natural daylight filtered through lace curtains and softened by warm interior fill. The scene holds a conversational, stage-like intimacy, revealing a round table with a light-grey speckled laminate top set against pale green diamond-and-fruit wallpaper and white wainscoting. Seated around it are three figures: on the left, an older woman in her late sixties with short, styled-up hair and a teal ruffled-neck sweater leans forward, smiling broadly and letting out a brief laugh. In the center sits a younger woman, roughly forty, with shoulder-length light-brown hair pulled back loosely and a floral button-up blouse, clutching a white ceramic mug decorated with pink flowers. Her brow is knit and her lips press together as she glances between the others, clearly uneasy. To her right, a middle-aged man in a black polo shirt with grey horizontal stripes maintains a relaxed, attentive posture, offering a gentle smile. The table holds matching mugs, a yellow sugar bowl, a dish of sugar cubes, and wooden shakers on an orange placemat, all contributing to a mid-century American domestic aesthetic rendered in pastel greens and muted earth tones.\n\nThe younger woman begins speaking in a mildly exasperated General American tone with a faint Southern lilt, her voice clear and acoustically dry against the quiet room. She says, “I’m sorry y’all find this funny,” her facial tension growing as she continues, “but this is the first time my mother’s expressed real interest in a man.” As she delivers the lines, her eyes widen and her mouth forms each word deliberately, shifting from embarrassed frustration to earnest explanation. The older woman’s broad smile softens into a knowing half-smile, still looking fondly at the speaker, while the man maintains his gentle grin, occasionally nodding in quiet amusement. The steady camera holds on this subtle comedic tension, capturing the contrast between the younger woman’s discomfort and the older generation’s tolerant warmth, evoking a quiet, reflective mood about romance and loss.","video_1_relative_path":"videos/2d540a151daea8da.mp4","video_2_relative_path":"videos/545cb45218964c9b.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_1/00000023","text_prompt":"Cinematic fantasy sequence, 2.35:1 aspect ratio, shallow depth of field, cool blue and purple landscape tones contrasting with a warm pastel sky streaked in pink, orange, and lavender. The scene opens on a static medium-wide shot of two young women standing face-to-face on an otherworldly rocky plain, where jagged, bluish-black formations recede into a hazy horizon. Tiny white particles drift slowly through the air like floating embers, catching faint highlights in the twilight glow. A soft, slow-tempo orchestral score led by sustained strings and a distant piano underscores the wistful mood, with no environmental sounds to preserve the stylized clarity. The woman on the left, dressed in a black outer robe over a dark garment cinched with a pale green sash, her long hair swept into an elaborate high bun with a single trailing strand, looks directly at her counterpart with a composed, solemn expression. A calm, measured female Mandarin voice begins, stating, \"我想听听你和九惑大人的故事。\"\n\nAs her sentence finishes, the camera executes a barely perceptible push-in, tightening the frame to a waist-up medium shot that maintains the intimacy of the unbroken take. The second woman, wearing layered sheer lavender sleeves over a lighter inner robe with a white belt, stands with her arms loosely folded. Her multi-strand hair is adorned with small pink blossoms and metallic ornaments, and several bracelets glint softly on her wrists. She listens attentively, brows gently knit, before tilting her head fractionally and responding in a slightly higher, gentle female Mandarin voice tinged with light skepticism. She asks, \"为什么呢？\" followed by, \"姐姐可不像那种爱打听的人。\" While speaking, she shifts her weight subtly, causing her translucent sleeves to ripple. The orchestral bed maintains its quiet intensity as the scene holds on their poised exchange, the warm sunset hues of the sky contrasting with the cool blues of the terrain, fading out just as the final words linger in the dreamlike atmosphere.","video_1_relative_path":"videos/da6b13511f66da61.mp4","video_2_relative_path":"videos/6e38c1414acd6cac.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/multitalker/multitalker_1/00000056","text_prompt":"A gritty urban drama unfolds in a locked-off wide shot at eye level, bathed in the diffuse, overcast daylight that casts soft shadows and establishes a desaturated palette of greys, whites, and muted greens across a quiet Japanese street. A white four-door sedan is parked parallel to the curb, its chrome hubcaps catching the pale light. On the left, a man in a dark charcoal suit and black shoes stands with his hands tucked into his pockets, short hair styled upward, posture relaxed yet alert. Opposite him near the car’s rear door, two teenage students in matching light-grey uniforms with dark piping stand shoulder-to-shoulder, heads bowed in respectful silence. The blond student, Ishibashi, grips a black briefcase at his side, while his dark-haired companion, Yoshimura, holds a similar bag. Behind them, a low industrial building with a corrugated metal façade displays a green sign reading “京進商事”, while power lines and a utility pole cut thin diagonal lines across the sky. A calm, authoritative Japanese man in the charcoal suit speaks, stating, \"組の薬を勝手に売りさばいてた。\" The ambient street hush remains minimal, underscoring the restrained tension of the standoff.\n\nThe camera holds its fixed position, framing the trio with deliberate rule-of-thirds composition that leaves the white sedan as a silent bridge between them. After a brief pause where no one moves, the suited man resumes, his voice steady and matter-of-fact: \"金髪の石橋と吉村って高校生にやられたらしい。\" The students remain perfectly still, maintaining their respectful silence as the low room-tone ambience fills the space. The subdued contrast and everyday grit of the setting reinforce a sober, realistic mood, hinting at an underworld conflict without overt action. The scene concludes with all three figures frozen in their original positions, the calm tension lingering in the quiet street as the final syllable fades into the ambient hush.","video_1_relative_path":"videos/bfd6620d77236824.mp4","video_2_relative_path":"videos/af4a7a59f2f3a860.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_1/00000071","text_prompt":"A cinematic domestic scene opens in a steady medium-wide shot, framed in 16:9, with warm, soft key lighting from a table lamp that creates a homely atmosphere and minimal shadows across wood-panelled walls adorned with framed family photographs and a floral print. The colour palette leans into earthy reds, browns, and muted greens, establishing a cozy, nostalgic mood. In the foreground, a red-and-white checkered sofa draped with a multicoloured crocheted throw anchors the composition. An older teenage boy with shoulder-length wavy brown hair reclines comfortably, his right leg crossed over his left knee. Dressed in a light-grey graphic T-shirt, loose blue jeans, and black high-top sneakers, he holds a black TV remote loosely while a white bowl of popcorn rests on his lap. Beside him, a younger pre-teen boy in a blue-green-yellow plaid shirt and dark jeans bends forward, rummaging beneath the cushions and shifting pillows. Only the faint rustle of fabric breaks the quiet as the older boy turns his head, curiosity softening his expression.\n\n\"What are you looking for?\" the older boy asks, his voice calm, mid-range, and lightly teasing. The younger boy straightens up, clutching a folded red blanket, and answers quietly but firmly, \"A brooch.\" The older boy tilts his head, genuinely puzzled, and replies, \"What's a brooch?\" The camera responds with a subtle push-in, tightening the frame around their faces to emphasise the moment of confusion. As the younger boy begins to explain, \"It's a piece of jewelry used to fasten clothes or hold fabric together,\" his voice trails off naturally, leaving the question hanging in the still air. The moderate depth of field keeps both boys sharp while softly blurring the dark wooden hutch and scattered domestic props, reinforcing the quiet generational distance hinted at by the unfamiliar term. No background music plays; the scene rests entirely on their exchange and the gentle, ambient sounds of a quiet afternoon at home.","video_1_relative_path":"videos/207f07aaee0442df.mp4","video_2_relative_path":"videos/04f3ea8c564aacdf.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/multitalker/multitalker_2/00000015","text_prompt":"A tense urban drama captured in a static eye-level medium shot, single continuous take. Warm, evenly spaced bare incandescent bulbs cast a soft yellow glow and gentle shadows across raw, unfinished concrete walls, creating a narrow corridor atmosphere where muted greys contrast with vivid character accents. In the foreground, three figures stand close together. A man in a grey pin-striped suit jacket over a white shirt leans forward, his brows knitted and posture rigid with frustration. His sharp, accusatory Mandarin voice cuts through the quiet space, reverberating lightly off the hard surfaces as he demands, “闭着眼睛买房的吗？” Facing him, a young woman in a pink, black, and white checkered hoodie beneath cream overalls initially looks startled, her mouth slightly parted. She quickly straightens her posture, clutching an open red folder to her chest, and answers in a defensive yet calm, slightly higher-pitched Mandarin, “我自己去的啊。” Beside her, another woman in a bright red oversized top and large circular yellow earrings watches with wide eyes and pursed lips, her silent shock and tension adding emotional weight to the standoff. In the background, a distant figure in dark clothing briefly raises both arms in a fleeting celebratory gesture before turning and walking down the hall, fading into the shadows. The central woman continues her explanation, her tone mixing justification with mild exasperation as she stresses her point in Mandarin, “当时售楼小姐说，这房子虽然是顶楼配电间改的，但是特别宽敞。” The man’s brow furrows deeper in skepticism, while the woman in red remains absorbed in the exchange. The corridor’s ambient acoustics remain clean and minimal, with only faint natural reverberation accompanying the dialogue. No music or extraneous sounds disturb the scene, leaving the confrontation unresolved and the raw, unfinished aesthetic of the space mirroring the unvarnished conflict.","video_1_relative_path":"videos/b517e7a3abb2b94c.mp4","video_2_relative_path":"videos/4b523288f3911555.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_2/00000039","text_prompt":"A locked-off medium two-shot at eye level captures a small American-style diner bathed in even natural daylight, with a shallow-to-moderate depth of field keeping the foreground subjects sharp while gently blurring the background. Red vinyl booths and a dark wooden table dominate the warm-toned space, balanced by cool accents from a light-blue T-shirt and nearby greenery near the large front windows. Two men sit opposite each other: a white man in his mid-thirties with a shoulder-length brown mullet, a small hoop earring, and a white T-shirt bearing yellow “US SWITZER” lettering, and a Black man in his late thirties wearing an afro, trimmed goatee, gold chain, and chunky bracelet. The white man leans forward, fork poised over a plate of pancakes and bacon, and in a curious, conversational tone asks, “Is that true?” A faint room-tone hum and the distant clink of cutlery underscore the quiet atmosphere. Across from him, the Black man answers with playful bravado, raising his right index finger for emphasis as he declares, “Well, we’d have to be talking about one charming motherfucking pig.” His delivery is low-pitched, rhythmic, and mildly amused, drawing a broad grin from his companion as his eyes crinkle with clear entertainment.\n\nContinuing without pause, the Black man adds, “I mean, he’d have to be ten times more charming than that Arnold on Green Acres, you know what I’m saying?” He punctuates the comparison by wagging his finger twice before relaxing his hand toward his chest to seal the point. The white man lowers his gaze to his food, chuckling softly while cutting another bite, his shoulders shaking lightly with suppressed laughter. The camera remains completely still as background patrons—a woman in a pale blouse and an older grey-haired man near the window—stay absorbed in their meals, reinforcing the casual, lighthearted mood. Clean, close-mic’d dialogue carries the scene above the subtle ambient diner noise, with no non-diegetic music, allowing the pop-culture reference and restrained background activity to anchor the relaxed, conversational tone.","video_1_relative_path":"videos/edf08453f777a3ed.mp4","video_2_relative_path":"videos/185d3225cfff2fff.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_2/00000059","text_prompt":"The scene opens inside a vintage-style tram gliding through an urban European city, bathed in soft, even daylight that streams through a large side window. A static medium two-shot frames a young woman with long wavy blond hair, dressed in a light beige T-shirt beneath a brown sleeveless top, seated close to a young man on a wooden bench. Her gaze is fixed on him, lips slightly parted, as a faint, steady low-frequency rumble from the moving vehicle underpins the quiet atmosphere. A soft, contemplative female voice in General American begins, stating, \"Yeah.\"\n\nBeside her, the man—featuring brown shoulder-length hair, light stubble, a black leather jacket over a gray T-shirt—turns toward her with a calm, measured earnestness. As he speaks, he lifts his right hand, extending his index finger before curling it into an OK sign near his chest to underscore his point. His expression is thoughtful and animated, eyebrows raised slightly, while outside the window a red-and-white tram glides parallel on an adjacent track and green trees blur past the urban skyline. A moderate-pitched male voice in General American continues, his delivery slowing for emphasis as he reflects, \"But as far as sexual feelings go, it started with an obsessive relationship.\" The woman listens in steady silence, her unwavering gaze absorbing his words, while the ambient vehicle hum remains constant, focusing all attention on their intimate, vulnerable exchange.","video_1_relative_path":"videos/abda557a209e2782.mp4","video_2_relative_path":"videos/0d0adbed563c652c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_2/00000065","text_prompt":"Cinematic medium-close shot, warm even lighting, shallow depth of field, and a muted domestic palette frame Howard from the chest up in a brightly lit apartment living room that doubles as a study. He has dark, shaggy hair and wears a vivid red corduroy button-down shirt layered over a black turtleneck. Leaning casually against a vertical wooden doorframe with his left arm raised, he gazes slightly to his right toward an off-screen woman, whose blonde ponytail and large silver hoop earring catch the extreme edge of the frame. Behind him, a whiteboard dense with handwritten physics formulas hangs on the wall, while a colorful molecular-model sculpture and a partially visible poster sit softly out of focus in the background. A calm, conversational male voice with a relaxed North American accent begins, stating, \"Applied physics. You may be familiar with some of my work.\" The room remains completely silent, with no background music or ambient noise to distract from his delivery.\n\nMaintaining steady eye contact with the unseen listener, Howard continues his explanation with mild enthusiasm and clear articulation, his eyebrows lifting slightly for emphasis. He adds, \"It’s currently orbiting Jupiter’s largest moon, taking high-resolution digital photographs.\" His expression stays engaged as he finishes the sentence, his mouth closing into a neutral, satisfied look. The camera holds the static composition for a moment longer, preserving the quiet, focused atmosphere of the controlled capture before the scene naturally concludes.","video_1_relative_path":"videos/5c701058a6886b68.mp4","video_2_relative_path":"videos/177258e493a50cee.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/multitalker/multitalker_3/00000034","text_prompt":"Cinematic therapy consultation, static medium two-shot, subdued warm palette with soft indoor lighting and gentle shadows. A tall, segmented beige sculpture stands centered against the back wall, faintly back-lit. At a light-brown wooden desk, a blonde woman in her thirties, dressed in a grey zip-front cardigan over a white top, sits with relaxed yet attentive posture, her shoulders squared toward her companion. She holds a pen loosely, raising it slightly for emphasis as she speaks in a calm, measured voice with a faintly upbeat lilt, “Alternative medicine.” Beside her, a bald, bespectacled man with a moustache, wearing a tan jacket over a plaid shirt, sits perfectly still, his gaze fixed forward with a neutral, stoic expression. The room carries only a soft, intimate indoor hum, keeping the focus entirely on the quiet exchange.\n\nMaintaining steady eye contact, the woman offers a small, encouraging smile as she continues, “I mean, Eastern healing,” her tone carrying a subtle upward inflection that seeks quiet validation. The man’s eyes shift fractionally toward her, though his face remains impassive, heightening the unspoken tension between them. After a brief pause, she adds a gentle nod and a knowing smile, concluding with, “You know, holistic.” The camera holds the static frame as her final word fades into the ambient silence, leaving both figures frozen in their contrasting postures—the woman engaged and explanatory, the man still and reserved—capturing a moment of thoughtful, unspoken divergence in a therapeutic space.","video_1_relative_path":"videos/48f705e8a6fd4a43.mp4","video_2_relative_path":"videos/8567ae6783a99caa.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/music/music_1/00000024","text_prompt":"A medium close-up, static shot captures an intimate, dimly lit domestic scene bathed in warm ambient glow from a floor lamp with a textured cylindrical shade positioned to the right. Seated side-by-side on a light-colored, button-tufted sofa, a young man with shoulder-length dark hair wears a black t-shirt bearing the partial white letters NDHI and steadily strums an acoustic guitar, his gaze fixed on the fretboard as his fingers move rhythmically across the strings. Beside him, a young woman with long brown hair, dressed in a loose grey cardigan over a grey tee adorned with a small silver cross pendant, leans slightly forward, her expression calm and focused as she sings softly, her lips moving in sync with a gentle, melodic vocal line: \"I saw the sparks.\" Between them rests a black fabric item patterned with white skulls, while subtle camera shake grounds the shot in a handheld, documentary-like realism. The soundscape is entirely acoustic and intimate: a warm, resonant guitar progression at a relaxed tempo provides the foundation, layered with the woman’s breathy, emotive vocals and the faint, natural reverb of a modest furnished room. Occasional finger slides and controlled inhalations punctuate the performance, creating a mood of quiet reflection and shared artistic expression, with no background noise or extraneous sounds to distract from the spontaneous, unpolished moment.","video_1_relative_path":"videos/15903bac5522e02a.mp4","video_2_relative_path":"videos/80e3e049dbad8ac6.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/music/music_1/00000071","text_prompt":"Genre: intimate acoustic folk performance. Lens: static medium close-up. Lighting: soft natural daylight from camera left. Palette: muted blue-grey walls, black cotton, and warm wood tones. A single, static medium close-up frames a young woman with long, wavy blonde hair seated indoors against a muted blue-grey wall. She wears a plain black short-sleeved T-shirt and cradles a dark-bodied acoustic guitar with a light wood fretboard marked by dot inlays and a circular pickguard. Soft natural daylight washes over her face and instrument from camera left, casting gentle shadows on the right, while a white headboard, a fluffy pale-blue pillow, and a small framed picture rest softly out of focus in the background. She maintains steady eye contact with the lens, her right hand strumming rhythmically over the strings while her left hand slides smoothly to form chords. Her lips move in precise synchrony with a breathy mezzo-soprano melody, accompanied by subtle eyebrow lifts and soft smiles that underscore an earnest, contemplative mood.\n\nThe soundscape is sparse and dry, capturing only her voice and the steel-string guitar in a quiet, carpeted room with minimal reverberation. She begins singing in a slow, minor-key folk ballad, her voice carrying a light vibrato and descending legato phrasing as she delivers the line, \"And no surprises, now what lies ahead…\" The guitar supports her with gentle arpeggiated chords and open-position voicings, occasionally shifting to a slight crescendo before resolving back to a soft dynamic. Faint finger-slide squeaks on the fretboard, the subtle rustle of her shirt as she adjusts her posture, and controlled breaths between phrases ground the performance in tangible reality. The camera remains completely still throughout, preserving the intimacy of the moment as the final chord rings out and naturally decays into silence.","video_1_relative_path":"videos/ca3bd09a11f8c4a2.mp4","video_2_relative_path":"videos/d741da000f9f6d6f.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/music/music_1/00000072","text_prompt":"A cinematic medium shot captures two young musicians seated on the open tailgate of a black SUV, bathed in bright natural daylight with soft shadows and a clear blue sky visible above the treetops. The man on the left, with light brown tousled hair and a beige button-up shirt layered over a dark graphic tee, cradles a light-wood acoustic guitar across his lap while singing into a black microphone mounted on a stand. His expression is deeply focused, mouth open mid-phrase, eyes occasionally flicking between his fretboard and the space beyond the lens. Beside him, a woman in a teal cable-knit sweater and light jeans mirrors his posture, her blonde hair falling over her shoulders as she plays a matching acoustic guitar with a reddish pickguard, her lips moving in precise sync with the melody. The framing remains completely fixed from a frontal perspective, capturing the subtle sway of their bodies and the intricate fingerwork on both instruments, while the rear interior of the vehicle reveals a laptop on the back seat displaying a waveform monitor. Aurally, the scene unfolds as an intimate, wordless performance anchored by a solo male voice weaving sustained, breathy “ooh” vocalizations in a gentle, legato style with subtle pitch bends. His melody is supported by steady, fingerpicked acoustic arpeggios in a relaxed major key, maintaining a slow, steady tempo with soft-to-moderate dynamics and gentle swells at the peaks of each phrase. The soundscape is meticulously clean, stripped of wind, traffic, or environmental noise, leaving only the organic resonance of the guitars, the faint squeak of fingers sliding across strings, the soft rustle of clothing, and quiet inhalations between vocal lines. All audio sits tightly centered in the stereo field, perfectly synchronized with the visible lip movements and hand motions. Just as the melody reaches its gentle resolution, the image hard-cuts to a solid black screen and every sound vanishes instantaneously, leaving absolute silence without any fade or reverb tail, marking a deliberate, abrupt editorial stop.","video_1_relative_path":"videos/541179f2a85d3342.mp4","video_2_relative_path":"videos/8d9c05d0373e4563.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_1/00000037","text_prompt":"A minimalist, low-key cinematic sequence opens on a solid black frame that gradually fills with white, handwritten-style text appearing letter by letter in the center. Rendered with slight jitter and uneven stroke thickness to evoke a casual, hand-drawn aesthetic, the phrase resolves as “2nd Attempt On The Failure To Finish.” The screen remains otherwise stark and silent, establishing a self-aware, slightly humorous tone before the visual transition.\n\nThe scene cuts abruptly to a static medium shot inside a rustic, unfinished wooden structure, possibly a barn or shed. Natural daylight streams in from the left, casting soft shadows and emphasizing the texture of the dark brown vertical planks and exposed ceiling rafters. In the foreground, a thick horizontal wooden beam anchors the composition, holding a clear plastic water bottle with a white cap and blue label, a small tripod-mounted action camera pointing directly at the viewer, and a light-colored rectangular wooden frame leaning diagonally against the back wall. To the left, a white paper notice with a yellow header band and dense black text is affixed to a vertical post, though its contents remain illegible. The frame is entirely still, yet the audio track reveals subtle off-screen activity: a faint rustling consistent with fabric or equipment being adjusted, followed by a single muted footstep landing on a hard surface. The combination of the quiet, utilitarian staging and the sparse, unexplained sounds creates an anticipatory, understated mood, suggesting a workspace prepared for action just beyond the edge of the frame.","video_1_relative_path":"videos/37def972eaced58b.mp4","video_2_relative_path":"videos/8370377d3a9743ba.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_1/00000042","text_prompt":"Cinematic close-up, fixed slightly elevated angle, clean and clinical lighting with a muted, nostalgic palette. The frame centers on a vintage electric typewriter resting on a work surface within a modest office or study, with out-of-focus background elements—a wooden cabinet with metal handles and draped fabric—lingering softly behind the machine. The composition holds steady, deliberately excluding any face or torso, as a pair of arms enters from the right, clad in off-white sleeves and marked by a silver metal watch on the left wrist. The hands first adjust the paper roller, fingers hovering briefly before settling into a practiced typing posture. The right hand initiates a steady rhythm, each key strike punctuated by a sharp metallic clack and the swift whirring of typebars snapping back to rest. Soon, the left hand joins in, moving independently across the keyboard with occasional pauses that give way to a faster, denser cadence. The soundscape is dry and immediate, captured with close microphone placement that isolates every percussive impact—high-pitched clicks for letters, deeper thuds for the spacebar, and the faint rustle of fabric and barely audible breath beneath the mechanical rhythm. As the typing reaches its peak, the hands pause, then resume before the left hand reaches for the carriage return lever. A pronounced pull triggers a sliding whirr followed by a resonant, low-frequency clunk that cleanly punctuates the sequence, leaving the scene in quiet, tactile stillness.","video_1_relative_path":"videos/511f8e1508da25dc.mp4","video_2_relative_path":"videos/c2e492f038ad597a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_1/00000069","text_prompt":"A cinematic, low-angle close-up in a dimly lit kitchen or service area establishes an intimate, contemplative mood, bathed in warm directional light that catches the brushed steel surfaces, stacked white ceramic plates, and the mustard-yellow button-down shirt of the subject. The frame initially holds on his torso as his hands move with precision, using metal tongs to arrange roasted meat and garnish onto the plating shelf. Each careful placement is accompanied by crisp, syncopated metallic clinks and scraping foley that echo slightly against the hard tiles and glass bottles in the background, grounding the scene in tactile reality. The camera slowly tilts upward to reveal a man with dark hair and light stubble, his expression deeply focused until he finishes arranging the food and sets the tongs down with a soft thud, followed by the faint rustle of his fabric. As he turns his head slightly toward the empty space beside him, his concentration softens into quiet contemplation. Against the sparse, ambient room tone, his voice emerges in a calm, conversational register with a neutral American accent, measured and tinged with quiet resignation: “So Claire, she was my wife.” He holds his gaze downward and off-camera, letting the words hang in the stillness as the shot lingers on his profile, the absence of music and the out-of-focus red and gold string lights amplifying the subtle melancholy of the moment.","video_1_relative_path":"videos/faccff184707dc40.mp4","video_2_relative_path":"videos/07de0bb8e77ad3e8.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/physics/physics_1/00000087","text_prompt":"Cinematic still, high-contrast red and black palette with crisp white typography. A single, unmoving shot fills the frame with a vintage album cover, its slightly grainy, deep-red silhouette of a stylized human face evoking the texture of a scanned photograph. Bold, uppercase sans-serif lettering sits across the upper portion, followed by flowing cursive script beneath it, while a smaller curved phrase arcs gently along the lower edge. Two thin diagonal lines intersect near the center, meeting a pale triangular wedge filled with abstract black shapes. The camera remains completely static, with no shifts in lighting, focus, or framing throughout.\n\nOver this unchanging visual, a brisk and energetic big-band jazz track drives the atmosphere. A full drum kit establishes a swinging ride-cymbal pattern punctuated by sharp snare accents, while a walking upright bass lays a steady foundation. Bright, tightly arranged brass instruments enter together with a punchy, syncopated motif, their harmonies buoyant and celebratory at a fast, propulsive tempo. The recording quality is clear but carries a faint layer of analog hiss, suggesting an archival source. The ensemble builds through a dense, polyphonic arrangement with tight ensemble hits, culminating in a resonant final chord and crashing cymbals before the audio cuts off instantly, leaving absolute silence.","video_1_relative_path":"videos/5c043b4cde56fd43.mp4","video_2_relative_path":"videos/f0a56e37665f0ff8.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_2/00000050","text_prompt":"Open on a tight, slightly high-angle close-up of a small orange tabby kitten standing inside a white ceramic bathroom sink. The camera is handheld and remains mostly static, with only minor tremors suggesting it is being held by a person standing just above the basin. Warm indoor lighting casts soft shadows across the scene, highlighting the deep reddish-brown textured walls behind and the chrome faucet with dual glass knobs that glint faintly under the glow. The kitten’s fur is damp and matted from recent water exposure, clinging to its frame as it faces left with its tail raised stiffly. Its eyes are wide and ears pinned back, radiating agitation or protest. As the moment unfolds, the cat pivots its body toward the faucet, snout dipping briefly near the spout as if investigating residual moisture. Its front paws shift uncertainly on the slick porcelain surface, claws barely catching at the drain cover, before it settles back into a tense, mid-motion stance with its gaze fixed off-frame left.\n\nThe soundscape is stripped down to the raw intimacy of the animal’s distress. A series of four sharp, high-pitched meows erupt in rapid succession, each lasting about half a second and perfectly synchronized with visible mouth openings, quick head flicks, flattened ears, and subtle torso twists. The vocalizations carry a clear attack-decay envelope, peaking in the high frequencies with harmonic overtones that bounce softly off the hard, reflective surfaces of the room. Beneath the cries lies a consistent, very low-level electrical or HVAC hum, typical of an enclosed bathroom, accompanied by mild natural reverberation that follows each meow. Faint incidental sounds emerge only in the quiet moments between vocalizations: the soft rustle of wet fur against porcelain and a barely perceptible metallic click as a claw brushes the faucet base. No music, dialogue, or human presence intrudes, leaving the scene entirely focused on the kitten’s urgent, unfiltered reaction to its damp, unfamiliar surroundings.","video_1_relative_path":"videos/d202a673a2a2d07e.mp4","video_2_relative_path":"videos/46f773b12080956c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_2/00000076","text_prompt":"A documentary-style, daytime sequence opens with a fixed, dashboard-level perspective from inside a moving commercial truck, bathed in bright natural sunlight that illuminates a two-lane rural road. Trees line the left shoulder while open fields and scattered houses stretch to the right, utility poles receding into the hazy distance. A red semi-truck maintains a steady pace ahead in the same lane. The dark dashboard anchors the foreground, its windshield wipers resting at the bottom edge, while a side-view mirror catches the glint of a yellow-orange object. Beneath this steady forward motion, a low, continuous engine rumble blends with the subtle high-frequency hiss of tires on pavement, establishing a quiet, enclosed cabin atmosphere.\n\nThe camera then executes a deliberate pan to the left and downward, shifting focus from the road into the utilitarian cabin. A small black oscillating fan mounted on the dash comes into view, followed by a white control panel studded with circular gauges and switches. A human hand briefly brushes the top-left corner near the fan before the frame settles on the lower passenger-side footwell. There, a red plastic trash bin with a white liner sits beside a red fire extinguisher topped with a green nozzle, surrounded by scattered leaves and dirt on the floor mat. As the camera locks onto these objects, a sharp metallic clank echoes through the cab, immediately followed by a brief scraping sound, implying an unseen hand adjusting equipment nearby. The engine hum persists underneath, gradually softening as the shot holds static on the interior details, closing the scene on a mundane, observational note.","video_1_relative_path":"videos/2deb54301cf4cfd1.mp4","video_2_relative_path":"videos/8fe316b5f63e50c8.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_2/00000080","text_prompt":"Shot on a handheld camera with a slightly high angle, this intimate documentary-style scene unfolds in a softly lit room bathed in even ambient daylight that casts no harsh shadows. The frame centers on an older black-and-white dog resting on a light-colored armchair upholstered in muted floral damask, its coat contrasting sharply against the fabric. To the left, a brown woven rug holds a single small white pellet. The camera maintains a steady but naturally handheld presence as the dog’s head is raised toward the lens, mouth open and teeth visible, while its tail wags gently behind. Two sharp, high-pitched barks ring out in quick succession, loud and percussive, perfectly synchronized with the animal’s animated facial expression and a subtle ear flick.\n\nThe dog holds its direct gaze, ears perked forward and eyes wide, front paws stretching out with claws faintly visible. After a brief, quiet pause that highlights the room’s stillness, a third bark erupts, closely timed to a quick twitch of the dog’s muzzle and momentary jaw clench. The animal then turns its head briefly to the right before snapping back to face the camera, a movement that precedes a fourth bark slightly lower in pitch but equally forceful. The background remains completely static, with no human presence or environmental movement to distract from the canine subject.\n\nIn the final moments, the dog leans its head closer to the lens, mouth agape in a playful, alert expression. A fifth bark follows immediately, the loudest and most resonant of the sequence, filling the acoustic space with a bright, nasal attack and a brief reverberation that hints at nearby hard surfaces. The dog’s tail gives a vigorous wag as the scene concludes, freezing on the image of the expressive animal. Throughout the sequence, the sonic landscape remains deliberately sparse, dominated entirely by the crisp canine vocalizations against an otherwise silent, low-level room tone, creating a focused and intimate portrait of a fleeting burst of communication.","video_1_relative_path":"videos/d095a5e3081fd13d.mp4","video_2_relative_path":"videos/7365b67d93e49ff8.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_3/00000009","text_prompt":"A vertical, static low-angle shot captures a tense, storm-battered landscape under a flat, overcast grey sky. The frame is dominated by a thick, textured palm trunk on the left, its fibrous sheaths ranging from light tan to dark brown, while a smaller palm anchors the lower right. Both trees are caught in a relentless gale, their massive fronds whipped horizontally to the right, leaflets streaming and blurring in perfect synchronization with the roaring wind. The atmosphere is heavy and foreboding, stripped of all human presence or artificial objects, leaving only the raw, elemental struggle between vegetation and weather. Aurally, the scene is immersed in a broad-spectrum rush of wind that fills the stereo field, blending a deep, rolling rumble with sharp, high-frequency hissing. The audio intensity mirrors the visual chaos, surging and receding in subtle, natural fluctuations that reinforce the relentless force of the approaching storm, creating an immersive, visceral experience of nature’s untamed power.","video_1_relative_path":"videos/ff494a7d95025a1a.mp4","video_2_relative_path":"videos/59123f34bc67f3c0.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/physics/physics_3/00000068","text_prompt":"A vibrant, cartoon-style children’s game sequence opens in a wide, static shot under bright, even studio lighting and a saturated primary-color palette of lime green grass, yellow slides, and red play structures beneath a clear blue sky with fluffy white clouds. In the lower left foreground, a red fire truck toy bearing the number nine rests with an animated, expressive face, while a high-pitched female voice with an instructional tone cuts through the quiet, stating, \"Under the water to catch it,\" immediately followed by a sharp, rising electronic chime. A hard cut shifts the frame to a medium shot of Doc McStuffins, a young girl in a crisp doctor’s outfit, standing against a stylized purple background beside a pink and purple toy medical vehicle. A large blue rectangular panel materializes at the center of the frame, displaying a sequential countdown in bold white numerals that flash three, two, one, each change punctuated by a crisp digital tick. As the final number drops, an energetic, fast-tempo synthesized pop track with bright major-key melodies and a steady drum machine beat swells to the foreground, culminating in the word GO! flashing across the panel alongside a sharp whoosh and an emphatic musical hit.\n\nThe scene cuts back to the original playground setting, where the red fire truck animates forward from the left toward the center-right, leaving a faint motion blur trail that suggests quick, playful movement. A glowing green line extends along the lower edge of the frame as the upbeat synth-pop continues to drive the rhythm, its volume dipping just enough to make room for the female voice to return with a cheerful, commanding tone, announcing, \"Ready? Go!\" The audio space remains clean and studio-produced, with the vehicle’s subtle engine hums and the bright, encouraging vocal prompts perfectly synchronized to the visual cues, maintaining an intuitive, game-like momentum that carries the sequence to a crisp, energetic close.","video_1_relative_path":"videos/b01671c3039fffcb.mp4","video_2_relative_path":"videos/02c2d31c5a89f513.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_3/00000071","text_prompt":"Cinematic daylight sequence, captured with a low-angle medium shot, strong midday lighting, and a high-contrast palette, focusing on a glossy black Porsche 911 GT3-style sports car parked diagonally on a sunlit concrete sidewalk beside an asphalt road. The camera looks up toward the front driver’s side quarter panel, where crisp shadows fall beneath the vehicle while gleaming off its reflective paint to highlight a large rear wing, silver multi-spoke wheels, bright yellow brake calipers, and the faint outline of interior roll cage bars visible through the side window. A sliver of a red sleeve flickers at the far left edge of the frame, while the background reveals green grass, scattered trees, and a distant street sign beneath a clear sky. From the very first moment, a loud, high-pitched electronic siren erupts, rapidly alternating in a relentless hi-lo pattern that dominates the entire soundscape without pause or fade.\n\nThe perspective shifts to a static wide shot framed behind a thick tree trunk in a landscaped median, looking across a quiet parking lot where a white pickup truck and a dark SUV sit near standing figures under the bright sun. In the distance, a commercial building with vertical silver columns and a red roofline anchors the horizon. The siren continues at full volume, its pitch and rhythm completely unchanged, leaving the scene visually still aside from the faint, distant movement of people. The view returns to the original angle on the stationary Porsche, now pulled slightly wider to reveal more of the surrounding commercial environment. A gray building behind the car displays a large GOODIES sign in bold white letters, flanked by a blue handicapped parking marker and a red-and-white NO PARKING ANY TIME sign mounted on a curb-side pole. A small white information board rests on the grass verge, and a man in a light shirt walks slowly past the storefront in the background. The camera holds steady on the car’s aggressive, modified stance against the mundane backdrop as the piercing emergency siren maintains its urgent, unbroken intensity until the frame abruptly ends.","video_1_relative_path":"videos/b8d2c4664db3db23.mp4","video_2_relative_path":"videos/83a2763a93b7f00a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_4/00000037","text_prompt":"Cinematic documentary sequence, steady eye-level medium shot, brightly lit engine dynamometer bay bathed in even artificial light that casts soft shadows across white walls and dark flooring. Dominating the center is a high-performance V8 engine mounted on a dyno stand, finished in metallic blue and silver with vivid blue spark plug wires and black intake tubing, while a large black exhaust pipe curves upward toward overhead ducting. To the right, a tall vertical black pipe displays a pressure gauge and a glowing red digital readout, and the background wall features geometric gray panels beneath a bold banner reading “THR DEVELOPMENTS” and “WE MAKE HORSEPOWER.” Over the deep, rhythmic rumble of the idling V8 and a persistent electronic hum from the dyno equipment, a mid-range male voice, slightly distant and neutral in tone, remarks, “We’re gonna need one or two turns and we’ll be done here.” A second male voice, closer to the microphone and agreeable in delivery, replies, “Yeah, just gotta last a minute.” The camera then executes a swift rightward pan, briefly blurring the frame as it sweeps past the engine to reveal the surrounding workshop: a red rolling tool chest, a cluttered workbench scattered with papers and small tools, and additional red storage units lining the wall. As the movement shifts the audio perspective, the engine’s idle softens slightly, masked by the growing ambient noise of the space and the subtle rustle of clothing and equipment as the operator repositions. The scene maintains a focused yet relaxed atmosphere, capturing the authentic soundscape and unhurried precision of a routine performance tuning session.","video_1_relative_path":"videos/37ecbff87ac5f9b9.mp4","video_2_relative_path":"videos/a8ca1d50bccfdadf.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_4/00000047","text_prompt":"Open on a close-up, slightly high-angle shot of a heavy black iron anvil resting on a rough wooden stump outdoors, its base surrounded by dirt, sand, and scattered debris. A glowing orange-yellow metal ring, freshly forged and gripped by tongs, is pressed against the anvil’s conical horn. With each rhythmic hammer strike, bright sparks erupt in sharp bursts while loud, resonant metallic clangs echo through the open air. The camera holds steady with only minor reframing, keeping the focus on the intermittent appearance of gloved hands manipulating the tongs. Natural daylight casts soft shadows, allowing the incandescent heat of the metal to contrast sharply against the dark, weathered iron.\n\nA hard cut then pulls back to a wider, eye-level medium shot, revealing more of the rustic workshop environment. The same workpiece now lies flat on the anvil’s broad face, gradually cooling from a brilliant yellow-orange to a dull red as the camera slowly pans left. Blurred in the background are a yellow-handled sledgehammer, a secondary hammer, and a grinding stand. The hammering continues at a steady, percussive cadence, dominating the soundscape with consistent metallic impacts that gradually give way to faint crackling as the metal loses its thermal brightness. Subtle environmental layers emerge—distant bird calls and a light wind rustling through the space—completing the diegetic audio tapestry. The scene captures the tactile, unadorned rhythm of traditional blacksmithing, where the interplay of light, heat, and sound tells the story of craftsmanship without a single word.","video_1_relative_path":"videos/ae52749f362124de.mp4","video_2_relative_path":"videos/9bb2f12785ae8749.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/physics/physics_4/00000065","text_prompt":"A tranquil, nature-documentary close-up opens on a static frame holding a small chaffinch perched calmly atop a weathered, moss-kissed wooden beam. The camera remains completely fixed, isolating the bird against a softly blurred backdrop of diffused greens and yellows that suggest sun-dappled foliage under an overcast sky. Even, shadowless daylight bathes the scene, highlighting the chaffinch’s warm pinkish-orange breast, gray-brown crown and back, and crisp black-and-white wing markings. The bird stays largely still, occasionally blinking, making tiny head turns, and shifting its posture with subtle feather ruffles, creating a quiet, observational portrait of avian stillness.\n\nAurally, the frame is filled with a rich, immersive chorus of overlapping songbird calls that rise and fall in a natural, polyphonic rhythm. The stereo field carries moderate spatial depth, implying several unseen birds singing just beyond the lens, their chirps, trills, and melodic phrases weaving together without repetition or artificial enhancement. There is no music, wind, or mechanical hum—only the steady, organic presence of the woodland soundscape, maintaining a consistent volume and lively, non-repetitive character throughout. The scene holds this peaceful, meditative tone until a clean, simultaneous cut to black and silence, preserving the raw authenticity of the captured moment.","video_1_relative_path":"videos/2c9c50ec0cf7acc6.mp4","video_2_relative_path":"videos/e042f64699031a35.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/podcast/podcast_1/00000000","text_prompt":"Cinematic medium close-up, static camera, bright even lighting against a textured deep purple backdrop frames a woman standing behind a sleek black podium equipped with two slender microphones. She wears formal academic regalia: a black mortarboard cap with a gold tassel draping to the right, a purple doctoral gown with wide sleeves marked by three black velvet bars on each arm, and a brown velvet hood lined in black resting over her shoulders. A square patch bearing a white emblem on a dark background is pinned to her left chest, while her long blonde hair falls naturally over her shoulders and bold red lipstick accents her features. As she speaks, her hands move expressively from clasped positions at waist level to open-palmed flourishes near shoulder height, her facial expressions shifting between earnestness and playful emphasis before settling into a broad, sustained smile as she finishes her line.\n\nA clear, mid-to-high female voice with a standard American accent begins, stating, “Specific emergency was that you desperately needed to hear a song with a catchy hook and an intensely cathartic bridge section.” Her delivery carries a lively, slightly humorous tone and a subtle reverberation characteristic of a large indoor auditorium. The moment her words conclude, the space fills with an immediate, loud wave of collective cheering, clapping, and scattered whoops from a large audience. The crowd noise rises quickly, sustaining with energetic approval that gradually tapers, leaving no room for music or extraneous sound and focusing all attention on the celebratory humor of the remark and its vibrant reception.","video_1_relative_path":"videos/59b15bc63dd421bc.mp4","video_2_relative_path":"videos/a58708b90a73f591.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/podcast/podcast_1/00000009","text_prompt":"Cinematic medium-wide shot, crisp stage lighting, and a vibrant palette of royal blue and gold open the scene on a brightly lit theatrical stage framed by heavy, pleated curtains. Three Black men in matching royal-blue suits command the space against a white backdrop mounted with three pristine urinals, evoking a satirical tone. The central figure bends forward with his left hand clutching his stomach and his right arm extended outward in a gesture of exaggerated comedic strain, while the two flanking him react with open laughter—one clasping his hands near his chest, the other standing upright with a broad smile. A calm, neutral female English voice-over begins, stating \"I know that listening to one another will not magically solve all problems.\"\n\nA hard cut transitions to a quiet, intimate interior washed in soft, diffused light. In a medium shot, a man with short curly brown hair and a light beard leans casually against a plain off-white wall, dressed in a beige sweater layered over a collared shirt. He holds a slender pen in his right hand and gestures subtly toward a large canvas leaning against the wall, which depicts a figure riding a cow beneath stylized trees under a hazy, earth-toned sky. Facing him, a woman is seen from behind, her dark braided hair swept into an elegant updo, wearing a sleeveless leopard-print top and dangling blue earrings as she listens in silent attentiveness. The female narration continues seamlessly across the cut, completing her declarative thought without pause, while the audio landscape remains entirely stripped of music and ambient room tone, leaving only the clean, close-mic’d voice to anchor the contemplative mood.","video_1_relative_path":"videos/874017ffc1f80050.mp4","video_2_relative_path":"videos/7dc25a255a1e5763.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_1/00000001","text_prompt":"Cinematic documentary-style sequence, wide locked-off framing with a static, observational camera, soft diffuse daylight transitioning to low-angle dusk backlighting, and a color palette shifting from cool greens and misty blues to warm golds and teals. The opening shot reveals an immense mountain valley blanketed in lush greenery, where terraced rice paddies wind down the slopes like shimmering silver ribbons, some basins mirroring the overcast sky while others lie as bare earth. A cluster of dark-roofed houses nestles among the ridges, framed by evergreen trees in the foreground, with distant peaks fading into bluish mist. A calm, measured male Mandarin voice-over begins, stating \"But to cultivate and reap in the boundless ocean, one must possess some other extraordinary skills,\" his clear and steady delivery accompanied by a gentle orchestral underscore built from sustained strings and airy synth pads. The scene cuts to a broad coastal panorama at dusk, where a low sun casts a narrow golden column across still water. Three silhouetted figures stand on a pebble beach—one adult to the right, two children near the center, one crouching and one standing—set against a sky streaked with wispy clouds that fade from pale yellow to teal. The voice-over continues seamlessly, maintaining a reflective and subtly inspirational tone as the camera holds fixed on the tranquil seascape. A closer view reveals several large fishing boats resting motionless on the horizon, rendered as dark shapes against the glowing backdrop, while the sun’s reflection ripples into a luminous path toward the viewer. The orchestral bed maintains its warm, contemplative chord at a slow adagio tempo, with no environmental noise to disturb the clean, studio-quality mix. In the final locked-off shot, a small motorboat drifts slowly from left to right, carrying two silhouetted occupants, one holding a long oar, with a line of anchored vessels stretching into the distance beneath an orange-gold sky that deepens toward the edges. The music sustains its serene harmony until the clip ends, fading naturally without abrupt cutoff, while the fixed camera and gentle boat movement reinforce a documentary stillness that places human presence in humble scale against the vast, reflective beauty of nature.","video_1_relative_path":"videos/8abfb2c46e1dc8cb.mp4","video_2_relative_path":"videos/ab0015dfdcef322a.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_1/00000011","text_prompt":"The scene opens in a dimly lit interior dominated by a saturated, blood-red backdrop that immediately establishes a mood of urgency and peril. A static camera holds a tight close-up on a middle-aged Caucasian man seated on a bold black-and-yellow tiger-striped sofa. He wears a dark suit jacket over a light-blue collared shirt, his face half-sculpted by a warm key light from camera left while the opposite cheek melts into deep shadow. Beads of perspiration glint on his brow as he looks upward and slightly left, his lips parted in a grave, measured delivery. A grave, medium-low male voice in Mandarin speaks with measured gravity, stating, \"与其利滚利，月供至少翻两倍。\" A low, tense orchestral score hums beneath his words, keeping the frame claustrophobic while a shallow depth of field blurs the crimson walls to focus entirely on his anxious expression.\n\nThe shot cuts to a matching close-up of a young Caucasian woman with voluminous curly blonde hair, wearing a sleeveless top and a delicate silver chain necklace. Still against the same crimson background, she lowers her gaze for an instant before lifting her eyes toward someone off-screen to her right, her brows knit in alarm. Her mouth opens wide as she blurts out a shocked question in General American English, her pitch rising sharply with disbelief: \"Two hundred percent on all my loans?\" The warm lighting mirrors the previous shot, maintaining the high contrast and claustrophobic tension, while the orchestral bed sustains the suspense. Clean, foregrounded dialogue cuts through the underscore, emphasizing the devastating weight of predatory lending and personal financial desperation.","video_1_relative_path":"videos/d9dd7b99d6bcc310.mp4","video_2_relative_path":"videos/4c53c4815f1df28c.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/voiceover/voiceover_1/00000037","text_prompt":"Cinematic widescreen 16:9 frame opens in a warmly lit, wood-paneled study reminiscent of a vintage hotel suite, rendered in rich earth tones and bathed in the soft, golden glow of two brass wall lamps with white shades. A dark-haired man in a grey long-sleeved shirt lies prone on a chaise lounge, propped on his elbows as he quietly studies a large open book or sketchpad illuminated by the practical lighting. At the rear of the frame, near a closed wooden door, a light-brown-haired man in a black high-collared shirt stands watching with a neutral, attentive posture. A calm male Mandarin voice-over begins, stating “Peter had already witnessed all of this.” Beneath the hushed atmosphere, a steady, low-level electronic hum underscores the scene as the room remains still, the ambience thick with quiet concentration and unspoken tension.\n\nA hard cut shifts the perspective to a tighter medium close-up of the standing man, where soft key lighting from camera left models his features while casting gentle shadows across his opposite cheek. A measured, slightly questioning male English voice breaks the silence: “Was that Meredith?” Without breaking the frame, he shifts his gaze fractionally downward, his expression tightening briefly before softening into contemplation. A softer, contemplative male English voice murmurs to himself: “Was who Meredith?” Delivered with a rising inflection that conveys mild puzzlement, the line hangs in the sparse audio mix alongside the persistent electronic hum. The camera holds on his thoughtful expression as the image gently freezes, leaving the dramatic focus entirely on his internal realization.","video_1_relative_path":"videos/2c7cee1dd33680c4.mp4","video_2_relative_path":"videos/a7fee6c0c465d1a7.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_2/00000025","text_prompt":"The scene opens as an intimate dramatic confrontation, framed in a fixed medium-close two-shot that holds a symmetrical composition of two women standing face-to-face at close distance. The setting is a dim, warm-toned indoor space resembling a cramped fabric shop, where hanging bolts of patterned and solid textiles contrast with subdued lighting that casts gentle shadows across the characters. A large red artificial flower and scattered green leaf garlands add saturated accents to the background. On the left, a woman with dark hair pulled back wears an olive-green jacket with a visible backpack strap; on the right, a woman with shoulder-length reddish-brown curls wears a bright lime-green turtleneck under a grey tweed blazer with a white lanyard. A soft, low-volume solo piano melody in a minor key begins immediately, weaving quietly beneath the dialogue. A weary, moderate-volume female Mandarin voice with a slight regional accent turns toward her counterpart and states, “再也回不到从前。” The right-hand woman listens intently, eyes fixed, before leaning forward a fraction to answer sharply in a rapid, forceful, and noticeably higher-pitched female Mandarin delivery, gesturing subtly near her chest while asking, “你知道你爸爸的事情有什么事用啊？”\n\nThe left-hand woman’s expression tightens as she steps closer, brows knitted, and retorts in a firmer, louder female Mandarin voice that rises above the piano accompaniment, her tone brimming with indignation and frustration as she declares, “当然有用啊！” The camera maintains its steady framing without movement, capturing every micro-expression as the confrontation escalates. Maintaining unbroken eye contact, she presses on, her elevated voice edged with pain and personal stakes as she stresses, “那是我爸爸的事情。” The right-hand woman remains silent, lips pressed together, absorbing the weight of the words while the piano motif repeats softly in the background. The scene holds on their unresolved tension, the warm, saturated textiles and subdued lighting framing the intimate standoff, leaving the emotional conflict hanging in the quiet, music-drenched space.","video_1_relative_path":"videos/85a49e387a54a488.mp4","video_2_relative_path":"videos/1fab29d1fa73a2e6.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_2/00000080","text_prompt":"Cinematic, dialogue-driven scene, tight close-up, muted greens and browns, soft diffused key lighting, and a low-frequency ambient hum. The clip opens on a middle-aged man in a white lab coat over a light-blue dress shirt and patterned tie, his receding dark hair and weary, concerned expression sharply framed against a softly out-of-focus background of greenish shelving. A calm male Mandarin voice begins, stating \"但是人家店老板也说了，这里并不收治人类病人。\" The camera executes a straight cut to a medium close-up of the man being addressed, who stands framed from mid-torso upward against a solid dark-green wall and a closed door. He wears a beige baseball cap with a small green emblem, a brown jacket, and a light mesh undershirt stained with dried blood across his chest. His eyes are wide and reddened, brows knitted in anxiety as he grips a large translucent plastic water jug near his torso. A deeper, accented English voice responds with slow incredulity: \"This is a medical clinic, isn’t it?\" The delivery is strained, underscored by the faint low-frequency room hum that fills the enclosed space without music or pronounced effects.\n\nThe shot returns to the first man in the lab coat, who listens intently with lips pressed before answering in a polite, matter-of-fact British accent: \"Well, of course it is, sir, but strictly for animals.\" The static camera holds on his subtle facial shifts and slight head movements, maintaining a classic shot-reverse-shot rhythm that focuses entirely on the conversational tension. The ambient hum remains constant as the soft lighting continues to isolate their expressions, leaving the multilingual exchange and the visible injuries to hint at a cross-cultural setting where human patients may be receiving treatment intended for veterinary care, deepening the thematic ambiguity of the facility.","video_1_relative_path":"videos/6b695cc8f873bb4f.mp4","video_2_relative_path":"videos/4fe9c5e9d07da21b.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/voiceover/voiceover_2/00000103","text_prompt":"A tense, naturalistic crime-procedural scene unfolds inside a moving vehicle, captured in a static medium-close shot with a shallow depth of field that isolates the cabin from the blurred streaks of green foliage and pale building façades rushing past the passenger-side window. Natural daylight filters through tinted glass, casting soft, diffuse highlights across the muted grey and black interior while creating a gentle lens flare on the windshield. The camera is positioned just behind the front seats, angled slightly toward the driver’s right, framing the space with an intimate, observational stillness. A continuous low-frequency engine rumble and steady road noise anchor the soundscape, replacing any musical score to heighten the realism and underlying urgency. In the foreground left, the blurred profile of the front-seat passenger remains motionless, head slightly inclined forward. Center-right, the driver—an East Asian man in his late thirties or early forties with short black hair and a neatly trimmed mustache-goatee—wears a dark grey collared jacket over a lighter shirt. His hands grip the upper rim of the steering wheel, his eyes fixed ahead with a faintly furrowed brow, betraying a quiet, investigative tension.\n\nA calm, neutral male Mandarin voice-over begins, stating \"伊队又开始怀疑阿道提前出院的动机。\" The ambient hum persists as the driver briefly glances down at the dashboard, his lips parting as if weighing his next words. He then turns his head fractionally toward the silent passenger, his mid-low pitch clear and measured, laced with quiet suspicion: \"你那兄弟怎么那么着急出院？\" The question hangs in the cabin, leaving the moment unresolved as the car continues its forward motion, the engine’s steady drone underscoring the unspoken weight of the ongoing investigation.","video_1_relative_path":"videos/238021a0721fc5fc.mp4","video_2_relative_path":"videos/dfc1fa8eb56e85f7.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_3/00000029","text_prompt":"A suspenseful crime-drama scene opens on a handheld camera in a tight close-up, bathed in the soft, shadow-free daylight of an overcast sky that casts a muted, cool palette of greys and greens across the frame. The shallow depth of field renders the background into a creamy bokeh of out-of-focus trash bins and roadside refuse, isolating a tense East Asian man in his thirties standing beside a quiet two-lane asphalt road bordered by a grassy embankment. His dark hair is swept upward, his thin mustache and light stubble framing a face etched with apprehension; he wears a dark navy collared shirt beneath a black tactical vest, a white coiled earpiece wire trailing from his right ear. As he stares ahead with knitted brows and parted lips, a calm but urgent male Mandarin voice-over begins, stating “高建翔的心瞬间提到嗓子眼儿。” The ambient hush of the outdoors remains minimal, amplifying the quiet dread of the moment.\n\nHis gaze remains fixed off-screen to the left, jaw tightening with visible tension until he abruptly whips his head further in that direction, eyes widening and posture stiffening in sudden alarm. The handheld camera makes a micro-pan to keep him centered, tracking the shift from apprehension to alertness without breaking proximity. From an unseen source close to the microphone, a slightly higher-pitched male Mandarin voice cuts through the stillness with urgent inquiry: “什么时候报案的？” Before the silence can settle, the same voice answers in a brisk, matter-of-fact tone: “刚刚才报案的。” The man holds his squared shoulders and unwavering stare, his anxious determination locked onto whatever has triggered the sudden tension, leaving the scene suspended in the quiet, unresolved atmosphere of a critical moment on the brink of revelation.","video_1_relative_path":"videos/10c2b7b9d39cfdb0.mp4","video_2_relative_path":"videos/d39761dc393ebc2a.mp4","human_preference_answer":"video 1 is better"}
{"case_id":"ovi_only/voiceover/voiceover_3/00000056","text_prompt":"A dimly lit, static close-up frames a middle-aged man from the mid-chest upward, his plain black crew-neck T-shirt dissolving into a shadowy background. High-contrast chiaroscuro lighting, evoking a noir thriller aesthetic, casts a cool bluish key light from the left, carving deep shadows across his right cheek while highlighting sweat-slicked skin, small abrasions on his forehead and cheeks, and his dark, receding hair. He stares straight ahead with narrowed eyes and a tense jaw, his expression frozen in grim intensity as beads of perspiration glint under the harsh illumination. The scene opens in near silence until a calm, neutral male Mandarin voice-off speaks, stating \"Where do we start?\" His steady, declarative delivery contrasts sharply with the man’s weathered visage, establishing an intimate, confrontational mood entirely devoid of ambient noise.\n\nAs the man’s brow furrows almost imperceptibly and his lips tighten, a low, ominous musical bed fades in, layering sustained synthetic strings over a soft, pulsing bass that slowly swells to underscore the rising tension. Riding just beneath the emerging score, a female commentator with a General American accent interjects in a slightly mocking, incredulous tone, remarking, \"Why every wacko in the country is gonna be after those bums now, wouldn’t you say?\" The suspenseful score maintains its quiet, brooding presence, neither swelling nor fading, keeping the focus entirely on the emotional weight of the performance and the subtext of the exchange. The clip concludes abruptly as her rhetorical question finishes, leaving the man locked in his intense stare while both picture and sound cut cleanly to silence.","video_1_relative_path":"videos/41d1d97b87918a0a.mp4","video_2_relative_path":"videos/b91437ba9ae390cf.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_3/00000077","text_prompt":"A cinematic period drama set in a warmly lit Qing-dynasty court interior, rendered in a palette of deep purples, charcoals, and muted browns. Shot in a single continuous take at eye level, the frame opens on a steady medium close-up of a dignified middle-aged man standing slightly left of center. Soft, diffused key light from camera left gently models his face against a darker, atmospheric background. He wears a dark charcoal-grey silk robe with a subtle sheen, detailed with black embroidered swirls around the collar and front placket, fastened by ornate brass frog buttons. His hair is neatly tied back, his expression calm yet resolute. In his right hand, he raises an aged parchment document framed by a blue-and-red border and topped with bold red seal-style characters reading “奉天承运,” alongside dense vertical columns of black calligraphy. As he holds the scroll aloft, a measured, resonant male voice in Standard Mandarin begins, stating “而贵为王爷的僧格林沁，哪能咽下这口气？” A faint orchestral underscore of low strings sustaining a tense chord underscores the gravity of the statement. Behind him, half a dozen attendants in earth-toned robes watch in silent concern or stoic approval, while at the extreme right edge, a younger man in a pale-blue patterned tunic tilts his head upward, eyes fixed on the speaker.\n\nThe camera executes a barely perceptible leftward drift, widening the frame to reveal an older gentleman stepping into view from the left. This newcomer, distinguished by a thin mustache, wears a black brocade robe and a matching cap adorned with a small gold emblem, with a long beaded necklace and carved pendant resting against his chest. He fixes his gaze forward, lips pressed, awaiting his turn. As the first speaker lowers the document fractionally but keeps it visible, a deeper, gruffer male voice in Standard Mandarin follows, stating “银票实在太普通。” His tone conveys sharp scorn and impatience, dismissing ordinary silver notes as beneath royal dignity. The younger man on the right blinks slowly, absorbing the exchange, while the purple drapery and dark wooden beams remain static, reinforcing the formal, court-like atmosphere. The subdued, ominous drone of the orchestral score continues, leaving the tension to linger in the heavy stillness as the scene concludes.","video_1_relative_path":"videos/0156a95de54b26d5.mp4","video_2_relative_path":"videos/55fab603d4dfd2c9.mp4","human_preference_answer":"video 2 is better"}
{"case_id":"ovi_only/voiceover/voiceover_3/00000107","text_prompt":"A static medium close-up frames a warmly lit, intimate restaurant interior, bathed in soft tungsten tones that cast gentle shadows across rich reds and golds. Shallow depth of field isolates a man with dark, wavy hair, dressed in a deep-red velvet jacket, white dress shirt, and black tie, seated opposite a blonde woman in a dark strapless top. She leans slightly forward, her hands resting gently over his on the tabletop, her expression tender and concerned as he keeps his gaze lowered with faintly knit brows. Against this quiet, bokeh-dappled backdrop of out-of-focus fairy lights and blurred patrons, a calm, neutral female Mandarin voice-over begins, stating \"Most importantly, he is quite dedicated.\" The ambient restaurant murmur remains low and indistinct, keeping the focus entirely on the unspoken tension between the two.\n\nThe man slowly lifts his head, turning toward the woman as his eyes widen and his mouth parts in earnest surprise. She maintains steady eye contact, her face soft but attentive, as a clear, mid-range male voice with a standard American accent speaks directly to her with polite but firm urgency: \"Excuse me, Vanessa, I think I need to step away for a moment.\" His lips move in sync with the words, breaking the quiet intimacy, while she continues to watch him with quiet concern. The camera holds steady on their exchange, allowing the subtle shift in his expression and the faint, lingering restaurant ambience to carry the emotional weight until the scene concludes.","video_1_relative_path":"videos/00a4b7559ccfd84e.mp4","video_2_relative_path":"videos/8b54f46e4af59faf.mp4","human_preference_answer":"video 1 is better"}