{ "schema": 1, "language": "en", "lang_code": "a", "dialect": "us", "voice": "am_liam", "speed": 0.88, "sample_rate": 24000, "total_duration": 46.465, "media_sha256": "1e29e3bd76f208d4179b3676dd5f957c31f9d3c21a7bf4ee4946c718f2de9576", "media_bytes": 298960, "render_fingerprint": "bfd7ace89d458b3957897fd4503559f83d80de8896eaeda993e75a84a9c8abdc", "render_inputs": { "renderer": "render_all_voices-v4", "lesson": "34_database", "language": "en", "lang_code": "a", "dialect": "us", "voice": "am_liam", "speed": 0.88, "scenes": [ { "narration": "Database Browser inspects large spaCR databases in a bounded, read-only view.", "speech_text": [ "Database Browser inspects large spacer databases in a bounded, read-only view." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "Choose a measurements database or its run folder and open it.", "speech_text": [ "Choose a measurements database or its run folder and open it." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "Select a table after reviewing its purpose and read-only status.", "speech_text": [ "Select a table after reviewing its purpose and read-only status." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "The preview loads a bounded page while reporting the complete row and column counts separately.", "speech_text": [ "The preview loads a bounded page while reporting the complete row and column counts separately." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "Search columns to make wide feature tables readable without changing the underlying rows.", "speech_text": [ "Search columns to make wide feature tables readable without changing the underlying rows." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "Build a structured filter. Column names and operators are validated, and values are bound safely.", "speech_text": [ "Build a structured filter.", "Column names and operators are validated, and values are bound safely." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "The exact filtered count describes the full query even though only one page is drawn.", "speech_text": [ "The exact filtered count describes the full query even though only one page is drawn." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 }, { "narration": "Export the complete current filter and visible-column selection. The source database remains unchanged.", "speech_text": [ "Export the complete current filter and visible-column selection.", "The source database remains unchanged." ], "authored_hold": 0.7, "resolved_hold": 0.52, "speed_multiplier": 1.0, "effective_speed": 0.88 } ], "assembly": { "version": "2026-08-11-natural-sentences-v1", "sample_rate": 24000, "lead_silence_seconds": 0.1, "tail_silence_seconds": 0.18, "sentence_pause_seconds": 0.12, "scene_hold_min_seconds": 0.32, "scene_hold_max_seconds": 0.52, "default_scene_hold_seconds": 0.42, "vad_frame_seconds": 0.005, "vad_peak_ratio": 0.002, "vad_absolute_floor": 2e-05 }, "cadence_profile": { "version": "2026-08-11-af-heart-scene-cadence-v6", "sha256": "4d728d67e73eea7e6203878879992f9050ae4a2677d717efdd68545104eb7812", "bytes": 23008, "enabled": false, "targets": { "slow_wpm": 125.0, "fast_wpm": 145.0, "calibration_wpm": 150.0 }, "safe_multiplier_bounds": { "minimum": 0.68, "maximum": 1.18 } }, "mastering": { "filters": [ 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"ad63ef3f2f18fa92e89f0ec2bde6941e81f83724c8d265414cb659c28077392d" } } } }, "scenes": [ { "scene": 1, "speech_start": 0.0, "speech_end": 5.05, "scene_end": 5.57, "duration": 5.57, "text": "Database Browser inspects large spaCR databases in a bounded, read-only view.", "speech_text": "Database Browser inspects large spacer databases in a bounded, read-only view.", "phonemes": "dˈæTəbˌAs bɹˈWzəɹ ɪnspˈɛkts lˈɑɹʤ spˈAsəɹ dˈæTəbˌAsᵻz ɪn ɐ bˈWndᵻd, ɹˈidˌOnli vjˈu.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 0.0, "speech_end": 5.05, "audible_start": 0.1, "audible_end": 4.87, "duration": 5.05, "gap_from_previous": null, "trimmed_lead": 0.155, "trimmed_tail": 0.445, "text": "Database Browser inspects large spaCR databases in a bounded, read-only view.", "speech_text": "Database Browser inspects large spacer databases in a bounded, read-only view.", "phonemes": "dˈæTəbˌAs bɹˈWzəɹ ɪnspˈɛkts lˈɑɹʤ spˈAsəɹ dˈæTəbˌAsᵻz ɪn ɐ bˈWndᵻd, ɹˈidˌOnli vjˈu." } ] }, { "scene": 2, "speech_start": 5.57, "speech_end": 9.25, "scene_end": 9.77, "duration": 4.199999999999999, "text": "Choose a measurements database or its run folder and open it.", "speech_text": "Choose a measurements database or its run folder and open it.", "phonemes": "ʧˈuz ɐ mˈɛʒəɹmᵊnts dˈæTəbˌAs ɔɹ ɪts ɹˈʌn fˈOldəɹ ænd ˈOpᵊn ɪt.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 5.57, "speech_end": 9.25, "audible_start": 5.67, "audible_end": 9.07, "duration": 3.68, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.385, "text": "Choose a measurements database or its run folder and open it.", "speech_text": "Choose a measurements database or its run folder and open it.", "phonemes": "ʧˈuz ɐ mˈɛʒəɹmᵊnts dˈæTəbˌAs ɔɹ ɪts ɹˈʌn fˈOldəɹ ænd ˈOpᵊn ɪt." } ] }, { "scene": 3, "speech_start": 9.77, "speech_end": 13.77, "scene_end": 14.29, "duration": 4.52, "text": "Select a table after reviewing its purpose and read-only status.", "speech_text": "Select a table after reviewing its purpose and read-only status.", "phonemes": "səlˈɛkt ɐ tˈAbᵊl ˈæftəɹ ɹəvjˈuɪŋ ɪts pˈɜɹpəs ænd ɹˈidˌOnli stˈATəs.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 9.77, "speech_end": 13.77, "audible_start": 9.87, "audible_end": 13.59, "duration": 4.0, "gap_from_previous": null, "trimmed_lead": 0.145, "trimmed_tail": 0.43, "text": "Select a table after reviewing its purpose and read-only status.", "speech_text": "Select a table after reviewing its purpose and read-only status.", "phonemes": "səlˈɛkt ɐ tˈAbᵊl ˈæftəɹ ɹəvjˈuɪŋ ɪts pˈɜɹpəs ænd ɹˈidˌOnli stˈATəs." } ] }, { "scene": 4, "speech_start": 14.29, "speech_end": 19.665, "scene_end": 20.185, "duration": 5.895, "text": "The preview loads a bounded page while reporting the complete row and column counts separately.", "speech_text": "The preview loads a bounded page while reporting the complete row and column counts separately.", "phonemes": "ðə pɹˈivjˌu lˈOdz ɐ bˈWndᵻd pˈAʤ wˌIl ɹᵻpˈɔɹTɪŋ ðə kəmplˈit ɹˈO ænd kˈɑləm kˈWnts sˈɛpəɹətli.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 14.29, "speech_end": 19.665, "audible_start": 14.389999999999999, "audible_end": 19.485, "duration": 5.375, "gap_from_previous": null, "trimmed_lead": 0.155, "trimmed_tail": 0.445, "text": "The preview loads a bounded page while reporting the complete row and column counts separately.", "speech_text": "The preview loads a bounded page while reporting the complete row and column counts separately.", "phonemes": "ðə pɹˈivjˌu lˈOdz ɐ bˈWndᵻd pˈAʤ wˌIl ɹᵻpˈɔɹTɪŋ ðə kəmplˈit ɹˈO ænd kˈɑləm kˈWnts sˈɛpəɹətli." } ] }, { "scene": 5, "speech_start": 20.185, "speech_end": 25.71, "scene_end": 26.23, "duration": 6.045000000000002, "text": "Search columns to make wide feature tables readable without changing the underlying rows.", "speech_text": "Search columns to make wide feature tables readable without changing the underlying rows.", "phonemes": "sˈɜɹʧ kˈɑləmz tə mˌAk wˈId fˈiʧəɹ tˈAbᵊlz ɹˈidəbᵊl wɪðˈWt ʧˈAnʤɪŋ ði ˌʌndəɹlˈIɪŋ ɹˈOz.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 20.185, "speech_end": 25.71, "audible_start": 20.285, "audible_end": 25.529999999999998, "duration": 5.525, "gap_from_previous": null, "trimmed_lead": 0.145, "trimmed_tail": 0.43, "text": "Search columns to make wide feature tables readable without changing the underlying rows.", "speech_text": "Search columns to make wide feature tables readable without changing the underlying rows.", "phonemes": "sˈɜɹʧ kˈɑləmz tə mˌAk wˈId fˈiʧəɹ tˈAbᵊlz ɹˈidəbᵊl wɪðˈWt ʧˈAnʤɪŋ ði ˌʌndəɹlˈIɪŋ ɹˈOz." } ] }, { "scene": 6, "speech_start": 26.23, "speech_end": 33.175, "scene_end": 33.695, "duration": 7.465, "text": "Build a structured filter. Column names and operators are validated, and values are bound safely.", "speech_text": "Build a structured filter. Column names and operators are validated, and values are bound safely.", "phonemes": "bˈɪld ɐ stɹˈʌkʧəɹd fˈɪltəɹ. kˈɑləm nˈAmz ænd ˈɑpəɹˌATəɹz ɑɹ vˈælɪdˌATᵻd, ænd vˈæljuz ɑɹ bˈWnd sˈAfli.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 26.23, "speech_end": 28.310000000000002, "audible_start": 26.330000000000002, "audible_end": 28.13, "duration": 2.08, "gap_from_previous": null, "trimmed_lead": 0.125, "trimmed_tail": 0.27, "text": "Build a structured filter.", "speech_text": "Build a structured filter.", "phonemes": "bˈɪld ɐ stɹˈʌkʧəɹd fˈɪltəɹ." }, { "sentence": 2, "speech_start": 28.43, "speech_end": 33.175, "audible_start": 28.53, "audible_end": 32.995, "duration": 4.745, "gap_from_previous": 0.4, "trimmed_lead": 0.17, "trimmed_tail": 0.435, "text": "Column names and operators are validated, and values are bound safely.", "speech_text": "Column names and operators are validated, and values are bound safely.", "phonemes": "kˈɑləm nˈAmz ænd ˈɑpəɹˌATəɹz ɑɹ vˈælɪdˌATᵻd, ænd vˈæljuz ɑɹ bˈWnd sˈAfli." } ] }, { "scene": 7, "speech_start": 33.695, "speech_end": 38.665, "scene_end": 39.185, "duration": 5.490000000000002, "text": "The exact filtered count describes the full query even though only one page is drawn.", "speech_text": "The exact filtered count describes the full query even though only one page is drawn.", "phonemes": "ði ɪɡzˈækt fˈɪltəɹd kˈWnt dəskɹˈIbz ðə fˈʊl kwˈɪɹi ˈivən ðˌO ˈOnli wˈʌn pˈAʤ ɪz dɹˈɔn.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 33.695, "speech_end": 38.665, "audible_start": 33.795, "audible_end": 38.485, "duration": 4.97, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.42, "text": "The exact filtered count describes the full query even though only one page is drawn.", "speech_text": "The exact filtered count describes the full query even though only one page is drawn.", "phonemes": "ði ɪɡzˈækt fˈɪltəɹd kˈWnt dəskɹˈIbz ðə fˈʊl kwˈɪɹi ˈivən ðˌO ˈOnli wˈʌn pˈAʤ ɪz dɹˈɔn." } ] }, { "scene": 8, "speech_start": 39.185, "speech_end": 45.945, "scene_end": 46.465, "duration": 7.280000000000001, "text": "Export the complete current filter and visible-column selection. The source database remains unchanged.", "speech_text": "Export the complete current filter and visible-column selection. The source database remains unchanged.", "phonemes": "ˈɛkspˌɔɹt ðə kəmplˈit kˈɜɹənt fˈɪltəɹ ænd vˈɪzəbᵊlkˌɑləm səlˈɛkʃən. ðə sˈɔɹs dˈæTəbˌAs ɹəmˈAnz ˌʌnʧˈAnʤd.", "authored_hold_after": 0.7, "hold_after": 0.52, "base_speed": 0.88, "speed_multiplier": 1.0, "effective_speed": 0.88, "sentences": [ { "sentence": 1, "speech_start": 39.185, "speech_end": 43.005, "audible_start": 39.285000000000004, "audible_end": 42.825, "duration": 3.82, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.395, "text": "Export the complete current filter and visible-column selection.", "speech_text": "Export the complete current filter and visible-column selection.", "phonemes": "ˈɛkspˌɔɹt ðə kəmplˈit kˈɜɹənt fˈɪltəɹ ænd vˈɪzəbᵊlkˌɑləm səlˈɛkʃən." }, { "sentence": 2, "speech_start": 43.125, "speech_end": 45.945, "audible_start": 43.225, "audible_end": 45.765, "duration": 2.82, "gap_from_previous": 0.4, "trimmed_lead": 0.145, "trimmed_tail": 0.335, "text": "The source database remains unchanged.", "speech_text": "The source database remains unchanged.", "phonemes": "ðə sˈɔɹs dˈæTəbˌAs ɹəmˈAnz ˌʌnʧˈAnʤd." } ] } ] }