{
  "id": "C05-N06",
  "title": "宣传片背景音乐有、人声没有，怎样核对多声道下混",
  "schema_version": "1.0",
  "evidence_kind": "合成输入与协议；非现场测试结果",
  "tool_versions": {
    "generator": "Python 3.12.4",
    "ffmpeg": "8.0.1（仅实际媒体生成与解码）"
  },
  "required_delivery": "逐声道报号样片和目标音频路径的声道矩阵",
  "input": {
    "layout": "5.1",
    "sample_rate": 48000,
    "segments": [
      {
        "channel": "FL",
        "frequency_hz": 400,
        "start_seconds": 0
      },
      {
        "channel": "FR",
        "frequency_hz": 500,
        "start_seconds": 1
      },
      {
        "channel": "FC",
        "frequency_hz": 600,
        "start_seconds": 2
      },
      {
        "channel": "LFE",
        "frequency_hz": 700,
        "start_seconds": 3
      },
      {
        "channel": "BL",
        "frequency_hz": 800,
        "start_seconds": 4
      },
      {
        "channel": "BR",
        "frequency_hz": 900,
        "start_seconds": 5
      }
    ]
  },
  "expected": {
    "segment_count": 6,
    "real_audio_path_tested": false
  },
  "measurement": null,
  "unmeasured": [
    "实体播放硬件",
    "显示刷新相位",
    "现场拍摄",
    "实际Windows目标机配置"
  ],
  "record_fields": [
    "segment_index",
    "source_channel",
    "tone_hz",
    "endpoint_id",
    "physical_speaker",
    "audible",
    "downmix_rule"
  ]
}