| Name | Type | Description | Notes |
|---|---|---|---|
| audioEncoding | AudioEncoding | [default to null] | |
| sampleRateHertz | integer | [default to 16000] | |
| speakingRate | integer | [optional] [default to null] | |
| pitch | integer | [optional] [default to null] | |
| volumeGainDb | integer | [optional] [default to null] |