[Bug 6144] New: Distorted sound with ALSA 1.0.12

Wine Bugs wine-bugs at winehq.org
Mon Sep 4 20:19:55 CDT 2006


           Summary: Distorted sound with ALSA 1.0.12
           Product: Wine
           Version: 0.9.20.
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P5
         Component: wine-directx-dsound
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: elton at schiert.net

When I use ALSA-driver version 1.0.12 or 1.0.13rc1 the sound in wine-apps gets
distorted. I tried several games including Diablo II, Baldurs's Gate II, Heroes
of Might and Magic V,... and they all behaved the same: The sound kinda' plays
but there are lots of little cracks every second. All games have acceptable
sound-quality when running ALSA 1.0.11

Switching Hardware Acceleration from Full to Emulation changes nothing, but
enabling Driver Emulation helps: I think the sound is not exactly as good as
with 1.0.11 but it's definitely a lot better than without Driver Emulation
(Note: What does Driver Emulation do anyway?).

All this only happens when using Wine's ALSA-driver. Using the OSS-driver the
sound is the same as before (Note2: I don't have any OSS drivers installed on my
system, just ALSA's built-in OSS-emulation). 

I don't really know if this is a Wine-bug at all. I tried other native ALSA-apps
like mediaplayers and as far as I can tell Wine is the only application that
shows this kind of sound distortion. Anyway, here's some info on my system:

Fujitsu-Siemens M3438G Laptop
Realtek/Intel High Definition Audio, chip: ALC880
Kubuntu Dapper 6.06 LTS, kernel 2.6.15-26-686
ALSA-driver module: snd-hda-intel

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