{ "schema": 1, "language": "en", "lang_code": "a", "dialect": "us", "voice": "af_river", "speed": 0.88, "sample_rate": 24000, "total_duration": 45.285, "media_sha256": "618a13959f9ec84c0b03ef94f49ca1c85837d5c25795c306046defff94d0ac5e", "media_bytes": 279736, "render_fingerprint": "a10c6f4b513c37fd19e7a912962348e1dce9d5fd7af5d74908b43b852b9100c6", "render_inputs": { "renderer": "render_all_voices-v4", "lesson": "34_database", "language": "en", "lang_code": "a", "dialect": "us", "voice": "af_river", "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": 4.99, "scene_end": 5.51, "duration": 5.51, "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": 4.99, "audible_start": 0.1, "audible_end": 4.81, "duration": 4.99, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.45, "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": 5.51, "speech_end": 9.135, "scene_end": 9.655, "duration": 4.145, "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": 5.51, "speech_end": 9.135, "audible_start": 5.609999999999999, "audible_end": 8.955, "duration": 3.625, "gap_from_previous": null, "trimmed_lead": 0.15, "trimmed_tail": 0.4, "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": 9.655, "speech_end": 13.52, "scene_end": 14.04, "duration": 4.385, "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": 9.655, "speech_end": 13.52, "audible_start": 9.754999999999999, "audible_end": 13.34, "duration": 3.865, "gap_from_previous": null, "trimmed_lead": 0.15, "trimmed_tail": 0.41, "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": 14.04, "speech_end": 19.205, "scene_end": 19.724999999999998, "duration": 5.684999999999999, "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": 14.04, "speech_end": 19.205, "audible_start": 14.139999999999999, "audible_end": 19.025, "duration": 5.165, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.45, "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": 19.724999999999998, "speech_end": 24.894999999999996, "scene_end": 25.414999999999996, "duration": 5.689999999999998, "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": 19.724999999999998, "speech_end": 24.894999999999996, "audible_start": 19.825, "audible_end": 24.714999999999996, "duration": 5.17, "gap_from_previous": null, "trimmed_lead": 0.16, "trimmed_tail": 0.42, "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": 25.414999999999996, "speech_end": 32.025, "scene_end": 32.545, "duration": 7.130000000000006, "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": 25.414999999999996, "speech_end": 27.394999999999996, "audible_start": 25.514999999999997, "audible_end": 27.214999999999996, "duration": 1.98, "gap_from_previous": null, "trimmed_lead": 0.12, "trimmed_tail": 0.275, "text": "Build a structured filter.", "speech_text": "Build a structured filter.", "phonemes": "bˈɪld ɐ stɹˈʌkʧəɹd fˈɪltəɹ." }, { "sentence": 2, "speech_start": 27.514999999999997, "speech_end": 32.025, "audible_start": 27.614999999999995, "audible_end": 31.844999999999995, "duration": 4.51, "gap_from_previous": 0.4, "trimmed_lead": 0.18, "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": 32.545, "speech_end": 37.605000000000004, "scene_end": 38.12500000000001, "duration": 5.580000000000005, "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": 32.545, "speech_end": 37.605000000000004, "audible_start": 32.645, "audible_end": 37.425000000000004, "duration": 5.06, "gap_from_previous": null, "trimmed_lead": 0.165, "trimmed_tail": 0.45, "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": 38.12500000000001, "speech_end": 44.76500000000001, "scene_end": 45.28500000000001, "duration": 7.160000000000004, "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": 38.12500000000001, "speech_end": 41.86500000000001, "audible_start": 38.22500000000001, "audible_end": 41.68500000000001, "duration": 3.74, "gap_from_previous": null, "trimmed_lead": 0.15, "trimmed_tail": 0.435, "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": 41.98500000000001, "speech_end": 44.76500000000001, "audible_start": 42.08500000000001, "audible_end": 44.58500000000001, "duration": 2.78, "gap_from_previous": 0.4, "trimmed_lead": 0.135, "trimmed_tail": 0.385, "text": "The source database remains unchanged.", "speech_text": "The source database remains unchanged.", "phonemes": "ðə sˈɔɹs dˈæTəbˌAs ɹəmˈAnz ˌʌnʧˈAnʤd." } ] } ] }