[Bug 28284] New: HoverAce: audio becomes distorted then it cuts out during races (Alsa=emulation)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=28284

           Summary: HoverAce: audio becomes distorted then it cuts out
                    during races (Alsa=emulation)
           Product: Wine
           Version: 1.3.26
          Platform: x86
               URL: http://www.fileplanet.com/82880/80000/fileinfo/HoverRa
                    ce-Demo
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: winmm&mci
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: gyebro69 at gmail.com
                CC: hoehle at users.sourceforge.net
   Regression SHA1: c7d0c093e5bc29da6163d2ef66542562ae7bafc2


Created an attachment (id=36240)
 --> (http://bugs.winehq.org/attachment.cgi?id=36240)
terminal output

HoverAce is an arcade racing, released in 2003 by GSC Game World.

Symptom: after starting a race, audio begins to crackle (both music and sound
effects). This usually happens right after starting a race, but sometimes I was
able to play the game for 1 minute and the problem came up then. The crackling
audio issue usually lasts for 5-10-15 seconds, afterwards all audio playback
goes away and the game continues running silently.

The issue is only reproducible when Alsa is set to 'emulation' and it is still
present in the current git (wine-1.3.27-270-gb7ea631).
The problem doesn't happen in Wine-1.3.25 and the result of the regression
test:

c7d0c093e5bc29da6163d2ef66542562ae7bafc2 is the first bad commit
commit c7d0c093e5bc29da6163d2ef66542562ae7bafc2
Author: Jörg Höhle <hoehle at users.sourceforge.net>
Date:   Wed Jul 27 19:32:02 2011 +0200

    winmm: Functions that take an open HWAVE don't need StartDevicesThread.

:040000 040000 237c4f2af36c22141a26170c4771092e7bce8b5f
733f8497b9e900585455bd46f17e59762d08196b M    dlls

The patch can be reverted cleanly on wine-1.3.27-270-gb7ea631, and that fixed
the problem.

The demo for the game is a so called compatibility test and it differs from the
full game in several aspects, but the audio problem is reproducible in it.

Steps to reproduce the problem in the demo:
1) After a successful installation launch the demo by tntShell.exe (ignore the
error message, related to directplay).
2) In the menu choose 'Begin new championship', then click on <Create Game>,
<Start>.  When the countdown ends, audio goes away.

Fedora 15 x86
Kernel 2.6.40.3-0.fc15.i686.PAE
Alsa 1.0.24
Audio device: nVidia Corporation MCP61 High Definition Audio (rev a2)

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