• # play test.wav

    Input File     : 'test.wav'
    Sample Size    : 16-bit (2 bytes)
    Sample Encoding: signed (2's complement)
    Channels       : 2
    Sample Rate    : 16000


    1) is it the default behavior that uuid_record record with 2 channels
    2) is it reasonable that FS can record to 2 channels but cannot playback?
    3) do I need to set RECORD_STEREO=false before uuid_record?


    Thanks for help.