CreateMpeg
JSON formatted value with optional bitRate and jointStereo.
e.g. { "bitRate": "192", "jointStereo": false }
This parameter object is optional. If it is present, the audio content of the WAVE file will be encoded as MPEG Layer 2.

bitRate: Bit rate in kbit/s. Valid values are 192, 160, 128, 112, 96, 80, 64, 56, 48, 32 for mono, and 384, 320, 256, 224, 192, 160, 128, 112, 96, 64 for stereo. The field is optional, default is 192.

jointStereo: Either true or false. If true, and you have a stereo encoding, the encoder will use "Joint Stereo" mode. The field is optional, default is false.

Notes:
MPEG encoding is only possible, if the output graph has not more than 2 channels, and its sample rate is valid for MPEG Layer 2 (32000, 44100 or 48000).
Possible values:
Default value: