http://bugs.winehq.org/show_bug.cgi?id=5924
--- Comment #11 from Anders Aagaard aagaande@gmail.com 2009-01-14 12:05:17 --- I dont have a new ventrilo server to test with currently, but earliest known to have this bug, I believe this bug has existed since ventrilo became possible to use in wine.
People work around it by using directsound, which lowers sound quality.