enableSeparateRecognitionPerChannel property
This needs to be set to true explicitly and audio_channel_count > 1
to get each channel recognized separately.
The recognition result will contain a channel_tag field to state which
channel that result belongs to. If this is not true, we will only
recognize the first channel. The request is billed cumulatively for all
channels recognized: audio_channel_count multiplied by the length of the
audio.
Implementation
core.bool? enableSeparateRecognitionPerChannel;