[Freeswitch-users] dp tools record to 1 channel but uuid_record record to 2 channels which cannot been playback

[seven]

# 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.
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