This may be a known bug, see http://audacity.sourceforge.net/download/release-notes -- "Recording in full duplex (playing existing tracks while recording) on some systems causes mono recordings to sound distorted or low-pitched. To work around this problem, set Audacity to record in stereo."
This may be a known bug, see http:// audacity. sourceforge. net/download/ release- notes -- "Recording in full duplex (playing existing tracks while recording) on some systems causes mono recordings to sound distorted or low-pitched. To work around this problem, set Audacity to record in stereo."