{
  "schema": 1,
  "language": "en",
  "lang_code": "a",
  "dialect": "us",
  "voice": "af_sky",
  "speed": 0.96,
  "sample_rate": 24000,
  "total_duration": 50.355,
  "media_sha256": "4cf8503ccd51546cba3eee42d4b07d0608fd6acece9edf5e87ef60b966ce51aa",
  "media_bytes": 314452,
  "render_fingerprint": "5a9a75d0bac4bc2fb7a74ee9357cd5c2dc52cb3ad6e985c1a23ad0de5c8a1b12",
  "render_inputs": {
    "renderer": "render_all_voices-v4",
    "lesson": "06_api",
    "language": "en",
    "lang_code": "a",
    "dialect": "us",
    "voice": "af_sky",
    "speed": 0.96,
    "scenes": [
      {
        "narration": "Import spaCR and print its version to confirm that the active Python environment can use the package.",
        "speech_text": [
          "Import spacer and print its version to confirm that the active Python environment can use the package."
        ],
        "authored_hold": 0.7,
        "resolved_hold": 0.52,
        "speed_multiplier": 1.0,
        "effective_speed": 0.96
      },
      {
        "narration": "Run spacr-run with the list option to see the available pipeline entry points, including mask, measure, annotate, classify, and report.",
        "speech_text": [
          "Run spacer run with the list option to see the available pipeline entry points, including mask, measure, annotate, [classify](/klˈæsəfI/), and report."
        ],
        "authored_hold": 0.7,
        "resolved_hold": 0.52,
        "speed_multiplier": 1.0,
        "effective_speed": 0.96
      },
      {
        "narration": "Start a module with spacr-run, the module name, and an exported settings file. spaCR validates paths, channels, workers, and hardware options before work begins.",
        "speech_text": [
          "Start a module with spacer run, the module name, and an exported settings file.",
          "spacer validates paths, channels, workers, and hardware options before work begins."
        ],
        "authored_hold": 0.7,
        "resolved_hold": 0.52,
        "speed_multiplier": 1.0,
        "effective_speed": 0.96
      },
      {
        "narration": "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data. Fix every reported problem before submitting unattended work.",
        "speech_text": [
          "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data.",
          "Fix every reported problem before submitting unattended work."
        ],
        "authored_hold": 0.7,
        "resolved_hold": 0.52,
        "speed_multiplier": 1.0,
        "effective_speed": 0.96
      },
      {
        "narration": "Remove --dry-run only after the plan and pre-flight checks pass. Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow.",
        "speech_text": [
          "Remove --dry-run only after the plan and pre-flight checks pass.",
          "Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow."
        ],
        "authored_hold": 0.7,
        "resolved_hold": 0.52,
        "speed_multiplier": 1.0,
        "effective_speed": 0.96
      }
    ],
    "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": [
        "loudnorm=I=-16:TP=-3:LRA=11",
        "loudnorm=I=-16:TP=-5:LRA=11,alimiter=limit=0.7:attack=5:release=50:level=disabled",
        "loudnorm=I=-16:TP=-5:LRA=11,alimiter=limit=0.5:attack=5:release=50:level=disabled"
      ],
      "codec": "aac",
      "bitrate": "48k",
      "channels": 1,
      "maximum_decoded_true_peak_dbfs": -1.0
    },
    "pronunciation": {
      "role": "pronunciation_profile",
      "version": "2026-08-11-en-natural-v6",
      "sha256": "1fbaa615cfa904094bdef5cba963539f0e8bec5927192a76b0d503e90c4bb83e",
      "bytes": 13263
    },
    "synthesis_runtime": {
      "model": {
        "repository": "hexgrad/Kokoro-82M",
        "snapshot": "f3ff3571791e39611d31c381e3a41a3af07b4987",
        "config": {
          "role": "kokoro_config",
          "name": "14a726edd3718279eac426630879ff743955b16a",
          "bytes": 2351,
          "sha256": "5abb01e2403b072bf03d04fde160443e209d7a0dad49a423be15196b9b43c17f"
        },
        "weights": {
          "role": "kokoro_weights",
          "name": "496dba118d1a58f5f3db2efc88dbdc216e0483fc89fe6e47ee1f2c53f18ad1e4",
          "bytes": 327212226,
          "sha256": "496dba118d1a58f5f3db2efc88dbdc216e0483fc89fe6e47ee1f2c53f18ad1e4"
        }
      },
      "voice_pack": {
        "role": "kokoro_voice_pack",
        "name": "c799548aed06e0cb0d655a85a01b48e7f10484d71663f9a3045a5b9362e8512c",
        "bytes": 523351,
        "sha256": "c799548aed06e0cb0d655a85a01b48e7f10484d71663f9a3045a5b9362e8512c",
        "tensor_sha256": "4435255c9744f3f31659e0d714ab7689bf65d9e77ec1cce060f083912614f0b9",
        "loaded_tensor_sha256": "4435255c9744f3f31659e0d714ab7689bf65d9e77ec1cce060f083912614f0b9"
      },
      "software": {
        "kokoro": "0.9.4",
        "misaki": "0.9.4",
        "torch": "2.6.0",
        "soundfile": "0.14.0",
        "python": "3.12.4",
        "implementation": "cpython"
      },
      "inference": {
        "device": "cuda"
      },
      "mastering_tool": {
        "version": "ffmpeg version 6.1.1-3ubuntu5+esm10 Copyright (c) 2000-2023 the FFmpeg developers",
        "version_output_sha256": "92dfb2468e6f5f06919b5433c0f14459ac19b81b1bc2d9fdceb83c6ad42e37b5",
        "executable": {
          "role": "ffmpeg_executable",
          "name": "ffmpeg",
          "bytes": 342488,
          "sha256": "ad63ef3f2f18fa92e89f0ec2bde6941e81f83724c8d265414cb659c28077392d"
        }
      }
    }
  },
  "scenes": [
    {
      "scene": 1,
      "speech_start": 0.0,
      "speech_end": 6.5,
      "scene_end": 7.02,
      "duration": 7.02,
      "text": "Import spaCR and print its version to confirm that the active Python environment can use the package.",
      "speech_text": "Import spacer and print its version to confirm that the active Python environment can use the package.",
      "phonemes": "ˈɪmpˌɔɹt spˈAsəɹ ænd pɹˈɪnt ɪts vˈɜɹʒən tə kənfˈɜɹm ðæt ði ˈæktɪv pˈIθˌɑn ənvˈIɹənmᵊnt kæn jˈuz ðə pˈækɪʤ.",
      "authored_hold_after": 0.7,
      "hold_after": 0.52,
      "base_speed": 0.96,
      "speed_multiplier": 1.0,
      "effective_speed": 0.96,
      "sentences": [
        {
          "sentence": 1,
          "speech_start": 0.0,
          "speech_end": 6.5,
          "audible_start": 0.1,
          "audible_end": 6.32,
          "duration": 6.5,
          "gap_from_previous": null,
          "trimmed_lead": 0.335,
          "trimmed_tail": 0.29,
          "text": "Import spaCR and print its version to confirm that the active Python environment can use the package.",
          "speech_text": "Import spacer and print its version to confirm that the active Python environment can use the package.",
          "phonemes": "ˈɪmpˌɔɹt spˈAsəɹ ænd pɹˈɪnt ɪts vˈɜɹʒən tə kənfˈɜɹm ðæt ði ˈæktɪv pˈIθˌɑn ənvˈIɹənmᵊnt kæn jˈuz ðə pˈækɪʤ."
        }
      ]
    },
    {
      "scene": 2,
      "speech_start": 7.02,
      "speech_end": 15.75,
      "scene_end": 16.27,
      "duration": 9.25,
      "text": "Run spacr-run with the list option to see the available pipeline entry points, including mask, measure, annotate, classify, and report.",
      "speech_text": "Run spacer run with the list option to see the available pipeline entry points, including mask, measure, annotate, [classify](/klˈæsəfI/), and report.",
      "phonemes": "ɹˈʌn spˈAsəɹ ɹˈʌn wɪð ðə lˈɪst ˈɑpʃən tə sˈi ði əvˈAləbᵊl pˈIplˌIn ˈɛntɹi pˈYnts, ɪnklˈudɪŋ mˈæsk, mˈɛʒəɹ, ˈænətˌAt, klˈæsəfI, ænd ɹəpˈɔɹt.",
      "authored_hold_after": 0.7,
      "hold_after": 0.52,
      "base_speed": 0.96,
      "speed_multiplier": 1.0,
      "effective_speed": 0.96,
      "sentences": [
        {
          "sentence": 1,
          "speech_start": 7.02,
          "speech_end": 15.75,
          "audible_start": 7.119999999999999,
          "audible_end": 15.57,
          "duration": 8.73,
          "gap_from_previous": null,
          "trimmed_lead": 0.345,
          "trimmed_tail": 0.325,
          "text": "Run spacr-run with the list option to see the available pipeline entry points, including mask, measure, annotate, classify, and report.",
          "speech_text": "Run spacer run with the list option to see the available pipeline entry points, including mask, measure, annotate, [classify](/klˈæsəfI/), and report.",
          "phonemes": "ɹˈʌn spˈAsəɹ ɹˈʌn wɪð ðə lˈɪst ˈɑpʃən tə sˈi ði əvˈAləbᵊl pˈIplˌIn ˈɛntɹi pˈYnts, ɪnklˈudɪŋ mˈæsk, mˈɛʒəɹ, ˈænətˌAt, klˈæsəfI, ænd ɹəpˈɔɹt."
        }
      ]
    },
    {
      "scene": 3,
      "speech_start": 16.27,
      "speech_end": 26.92,
      "scene_end": 27.44,
      "duration": 11.170000000000002,
      "text": "Start a module with spacr-run, the module name, and an exported settings file. spaCR validates paths, channels, workers, and hardware options before work begins.",
      "speech_text": "Start a module with spacer run, the module name, and an exported settings file. spacer validates paths, channels, workers, and hardware options before work begins.",
      "phonemes": "stˈɑɹt ɐ mˈɑʤul wɪð spˈAsəɹ ɹˈʌn, ðə mˈɑʤul nˈAm, ænd ɐn ˈɛkspˌɔɹTᵻd sˈɛTɪŋz fˈIl. spˈAsəɹ vˈælɪdˌAts pˈæðz, ʧˈænᵊlz, wˈɜɹkəɹz, ænd hˈɑɹdwˌɛɹ ˈɑpʃənz bəfˈɔɹ wˈɜɹk bəɡˈɪnz.",
      "authored_hold_after": 0.7,
      "hold_after": 0.52,
      "base_speed": 0.96,
      "speed_multiplier": 1.0,
      "effective_speed": 0.96,
      "sentences": [
        {
          "sentence": 1,
          "speech_start": 16.27,
          "speech_end": 21.18,
          "audible_start": 16.37,
          "audible_end": 21.0,
          "duration": 4.91,
          "gap_from_previous": null,
          "trimmed_lead": 0.28,
          "trimmed_tail": 0.335,
          "text": "Start a module with spacr-run, the module name, and an exported settings file.",
          "speech_text": "Start a module with spacer run, the module name, and an exported settings file.",
          "phonemes": "stˈɑɹt ɐ mˈɑʤul wɪð spˈAsəɹ ɹˈʌn, ðə mˈɑʤul nˈAm, ænd ɐn ˈɛkspˌɔɹTᵻd sˈɛTɪŋz fˈIl."
        },
        {
          "sentence": 2,
          "speech_start": 21.3,
          "speech_end": 26.92,
          "audible_start": 21.4,
          "audible_end": 26.740000000000002,
          "duration": 5.62,
          "gap_from_previous": 0.4,
          "trimmed_lead": 0.28,
          "trimmed_tail": 0.325,
          "text": "spaCR validates paths, channels, workers, and hardware options before work begins.",
          "speech_text": "spacer validates paths, channels, workers, and hardware options before work begins.",
          "phonemes": "spˈAsəɹ vˈælɪdˌAts pˈæðz, ʧˈænᵊlz, wˈɜɹkəɹz, ænd hˈɑɹdwˌɛɹ ˈɑpʃənz bəfˈɔɹ wˈɜɹk bəɡˈɪnz."
        }
      ]
    },
    {
      "scene": 4,
      "speech_start": 27.44,
      "speech_end": 39.11,
      "scene_end": 39.63,
      "duration": 12.190000000000001,
      "text": "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data. Fix every reported problem before submitting unattended work.",
      "speech_text": "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data. Fix every reported problem before submitting unattended work.",
      "phonemes": "ˈæd dɹˈIɹˌʌn tə ɹəzˈɔlv sˈɛTɪŋz, pɹˈɪnt ði ˌɛksəkjˈuʃən plˈæn, ænd ɹˈʌn pɹˌiflˈIt vˌælɪdˈAʃən wɪðˈWt pɹˈɑsɛsɪŋ dˈATə. fˈɪks ˈɛvəɹi ɹəpˈɔɹTᵻd pɹˈɑbləm bəfˈɔɹ səbmˈɪTɪŋ ˌʌnətˈɛndᵻd wˈɜɹk.",
      "authored_hold_after": 0.7,
      "hold_after": 0.52,
      "base_speed": 0.96,
      "speed_multiplier": 1.0,
      "effective_speed": 0.96,
      "sentences": [
        {
          "sentence": 1,
          "speech_start": 27.44,
          "speech_end": 34.69,
          "audible_start": 27.540000000000003,
          "audible_end": 34.510000000000005,
          "duration": 7.25,
          "gap_from_previous": null,
          "trimmed_lead": 0.34,
          "trimmed_tail": 0.36,
          "text": "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data.",
          "speech_text": "Add --dry-run to resolve settings, print the execution plan, and run pre-flight validation without processing data.",
          "phonemes": "ˈæd dɹˈIɹˌʌn tə ɹəzˈɔlv sˈɛTɪŋz, pɹˈɪnt ði ˌɛksəkjˈuʃən plˈæn, ænd ɹˈʌn pɹˌiflˈIt vˌælɪdˈAʃən wɪðˈWt pɹˈɑsɛsɪŋ dˈATə."
        },
        {
          "sentence": 2,
          "speech_start": 34.81,
          "speech_end": 39.11,
          "audible_start": 34.910000000000004,
          "audible_end": 38.93,
          "duration": 4.3,
          "gap_from_previous": 0.4,
          "trimmed_lead": 0.285,
          "trimmed_tail": 0.265,
          "text": "Fix every reported problem before submitting unattended work.",
          "speech_text": "Fix every reported problem before submitting unattended work.",
          "phonemes": "fˈɪks ˈɛvəɹi ɹəpˈɔɹTᵻd pɹˈɑbləm bəfˈɔɹ səbmˈɪTɪŋ ˌʌnətˈɛndᵻd wˈɜɹk."
        }
      ]
    },
    {
      "scene": 5,
      "speech_start": 39.63,
      "speech_end": 49.835,
      "scene_end": 50.355000000000004,
      "duration": 10.725000000000001,
      "text": "Remove --dry-run only after the plan and pre-flight checks pass. Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow.",
      "speech_text": "Remove --dry-run only after the plan and pre-flight checks pass. Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow.",
      "phonemes": "ɹəmˈuv dɹˈIɹˌʌn ˈOnli ˈæftəɹ ðə plˈæn ænd pɹˌiflˈIt ʧˈɛks pˈæs. hˈɛdləs ʤˈɑbz sˈAv ðə sˈAm ˈWtpˌʊts, sˈɛTɪŋz, vˈɜɹʒən ɹˈɛkəɹd, ænd lˈɔɡz æz ðə dˈɛsktˌɑp wˈɜɹkflˌO.",
      "authored_hold_after": 0.7,
      "hold_after": 0.52,
      "base_speed": 0.96,
      "speed_multiplier": 1.0,
      "effective_speed": 0.96,
      "sentences": [
        {
          "sentence": 1,
          "speech_start": 39.63,
          "speech_end": 43.635000000000005,
          "audible_start": 39.730000000000004,
          "audible_end": 43.455000000000005,
          "duration": 4.005,
          "gap_from_previous": null,
          "trimmed_lead": 0.335,
          "trimmed_tail": 0.285,
          "text": "Remove --dry-run only after the plan and pre-flight checks pass.",
          "speech_text": "Remove --dry-run only after the plan and pre-flight checks pass.",
          "phonemes": "ɹəmˈuv dɹˈIɹˌʌn ˈOnli ˈæftəɹ ðə plˈæn ænd pɹˌiflˈIt ʧˈɛks pˈæs."
        },
        {
          "sentence": 2,
          "speech_start": 43.755,
          "speech_end": 49.835,
          "audible_start": 43.855000000000004,
          "audible_end": 49.655,
          "duration": 6.08,
          "gap_from_previous": 0.4,
          "trimmed_lead": 0.31,
          "trimmed_tail": 0.335,
          "text": "Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow.",
          "speech_text": "Headless jobs save the same outputs, settings, version record, and logs as the desktop workflow.",
          "phonemes": "hˈɛdləs ʤˈɑbz sˈAv ðə sˈAm ˈWtpˌʊts, sˈɛTɪŋz, vˈɜɹʒən ɹˈɛkəɹd, ænd lˈɔɡz æz ðə dˈɛsktˌɑp wˈɜɹkflˌO."
        }
      ]
    }
  ]
}