sox -c1 -r44100 -sw /usr/share/sounds/pop.wav -tossdsp /dev/audio && wine winamp
has the problem, but
sox -c1 -r44100 -sb /usr/share/sounds/pop.wav -tossdsp /dev/audio && wine winamp
is unbelievably good. How could it be? I should find out if it's something is wrong with my system or something else.
Only one of my sound cards suffers from the problem when the format of primary buffer is 22050 samples per second, 8-bit stereo. The other is OK. It appears to be a big challenge for me. And I am a little curious about how many peoples would have such experience. I submitted a new patch, please test it.