http://bugs.winehq.org/show_bug.cgi?id=28679
--- Comment #15 from Alexey Loukianov mooroon2@mail.ru 2011-10-13 16:39:35 CDT --- Well, sad to report but I was too quick to state this patch fixes the sound to the level it was before commit b0652dd8.
With emulated win version set to Windows 7 I've got extremely noticeable sound stutter in RAGE even after the patch from commit 9d29d9f7. In WinXP mode sound seems to be _almost_ normal. Listening to it carefully makes me come to a conclusion that there's slight distortion introduced which sounds like "very slight clipping". This distortion might be a result of a lot of tiny (1-2 samples) underruns occurring non-stop.