http://bugs.winehq.org/show_bug.cgi?id=29841
--- Comment #2 from Michael Hampton error@ioerror.us 2012-02-09 00:19:08 CST --- Oops! I forgot one thing.
The reason I think this is a Wine issue is that the aplay command works correctly.
aplay -Dpulse /usr/share/sounds/KDE_Startup_new.wav
plays perfectly, free of distortion.