http://bugs.winehq.org/show_bug.cgi?id=29585
--- Comment #40 from Mateusz Stachowski mateusz.stachowski@wp.pl 2012-02-19 10:18:17 CST --- The results were to big so here is an alternative link: http://ubuntuone.com/7k2SMByx5aK6BuanZveLeP [tests on wine-1.4-rc4 (with 4 patches) mmdevapi render and games]
Next round of tests this time on wine-1.4-rc4 with patches by Andrew Eikum. I've first tried how it will go when using only patches (without HACKS), but there still was very bad sound quality in games. Then I've compiled Wine again with HACKS. Unfortunately the sound quality didn't improve at all. I've also found more games affected by this problem:
Q.U.B.E. Demo (it's on Steam, but it needs .NET 4.0 which can be installed with the newest winetricks from svn) Mass Effect 3 Demo (it's on Origin)
I've also upgraded my OSSv4 to the newest version (with commit "Fixed reporting of AFMT_FLOAT as a supported format").
Running mmdeavapi render tests produces audible sine waves, but when the vmix is disabled the output often becomes not clear.