audioFormat property
File format for exported audio file.
Currently only in telephony recordings. Possible string values are:
- "AUDIO_FORMAT_UNSPECIFIED" : Unspecified. Do not use.
 - "MULAW" : G.711 mu-law PCM with 8kHz sample rate.
 - "MP3" : MP3 file format.
 - "OGG" : OGG Vorbis.
 
Implementation
core.String? audioFormat;