http://bugs.winehq.org/show_bug.cgi?id=17056
--- Comment #3 from Zachary zacharyjwelch@gmail.com 2009-01-21 21:05:26 --- trying to create a local server game (offline) produces the same results.
I don't suspect an Audo/hardware problem because all my other audio applications work perfectly except Ventrilo and only the mic is affected.
when I load tf2 all the music works fine, sound effects work fine. I even had Pandora.com running in the background without any issues on one of the attempts. Dealt with mashing both sets of audio no problem.