chromium/third_party/tflite_support/src/tensorflow_lite_support/metadata/python/tests/testdata/input_audio_tesnor_default_meta.json

{
  "subgraph_metadata": [
    {
      "input_tensor_metadata": [
        {
          "content": {
            "content_properties_type": "AudioProperties",
            "content_properties": {
            }
          },
          "stats": {
          }
        }
      ]
    }
  ]
}