{
  "version": 0,
  "output": { "width": 1280, "height": 720, "fps": 30 },
  "source": { "path": "sample.mp4", "proxy": null },
  "cuts": [{ "in": 0.0, "out": 20.0 }],
  "overlays": [],
  "audio": {
    "bgm": { "path": "bgm.mp3", "gain_db": -18, "ducking": true },
    "narration": [
      {
        "id": "n-0001",
        "path": "out/narration/n-0001.mp3",
        "t": 2.5,
        "gain_db": 0,
        "script": "こんにちは、AKARI Videoです。",
        "reading": "こんにちわ、あかりびでおです。",
        "provenance": {
          "provider": "voicevox",
          "engine": "voicevox-0.25.2",
          "voice": "speaker:3",
          "credit": "VOICEVOX:ずんだもん",
          "generated_at": "2026-07-20T09:00:00+09:00"
        }
      },
      {
        "id": "n-0002",
        "path": "out/narration/n-0002.mp3",
        "t": 10.0,
        "provenance": {
          "provider": "human",
          "generated_at": "2026-07-19"
        }
      }
    ]
  }
}