*wav file r rather big, 1 min of default setting wav file can take up to 15mb of ur phone space
*amr only took up to 60kb of the same length of time
*awb only took to max 240kb of the same length of time
Difference between Polyphonic and True tones is that In True tones u can play real sounds, like ur own recording, animal sounds, etc. But in polyphonic its not possible...