Hi Doug, Thanks for the suggestion! The speech is recording fine. And play back is fine too (if perhaps a lil scratchy). Here's the code arecord -d 15 -r 48000 FILE.wav Recording... WAVE 'FILE.wav' : Unsigned 8 bit, Rate 48000 Hz, Mono aplay FILE.wave Playing WAVE 'FILE.wav' : Unsigned 8 bit, Rate 4...