| Parameter | Type | Description | Example |
|---|---|---|---|
| object | The information about audio streams. This parameter is valid only if the value-added image processing or video transcoding feature is enabled. | ||
| duration | string | The duration of the audio stream. Unit: seconds. | 7704.573000 |
| bit_rate | string | The bitrate of the audio stream. Unit: bit/s. | 129280 |
| code_name | string | The audio encoding mode. | aac |