{
  "id": "C06-N09",
  "title": "同步网络加延迟和丢包后画面怎样变化：做一组受控实验",
  "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": "隔离实验环境的扰动参数、恢复过程和样本录像",
  "input": {
    "trials": [
      {
        "id": "baseline",
        "delay_ms": 0,
        "loss_percent": 0
      },
      {
        "id": "delay",
        "delay_ms": 50,
        "loss_percent": 0
      },
      {
        "id": "loss",
        "delay_ms": 0,
        "loss_percent": 1
      },
      {
        "id": "recovery",
        "delay_ms": 0,
        "loss_percent": 0
      }
    ],
    "synthetic_counts": {
      "sent": 1000,
      "lost": 10
    }
  },
  "expected": {
    "observed_loss_percent": 1,
    "production_network_touched": 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": [
    "trial",
    "tool_version",
    "interface",
    "direction",
    "delay_ms",
    "jitter_ms",
    "loss_percent",
    "sent",
    "lost",
    "recovery_seconds",
    "capture_id"
  ]
}