AudioChannelSeparate

AudioChannelSeparate[audio] gives a list of Audio objects, each of which represents one channel of audio.

AudioChannelSeparate[audio, channel] returns the specified channel from audio.

Examples

audio = ExampleData[{"Audio", "Apollo11"}];
AudioChannelSeparate[audio]

AudioChannelSeparate[audio, 1]

Please visit the official Wolfram Language Reference for more details.