{
  "reference": "SMPTE示例参考",
  "rows": [
    {
      "peak": 0,
      "relative_db": null,
      "reference_dbfs": null
    },
    {
      "peak": 0.1,
      "relative_db": -20.0,
      "reference_dbfs": -40.0
    },
    {
      "peak": 1,
      "relative_db": 0.0,
      "reference_dbfs": -20.0
    },
    {
      "peak": 10,
      "relative_db": 20.0,
      "reference_dbfs": 0.0
    }
  ],
  "analog_output_measured": false,
  "null_means": "零幅度对数为负无穷，不是已测零分贝"
}