[Bug 16052] New: wwiionline (Battleground Europe): bad fps drops when playing certain sounds

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=16052

           Summary: wwiionline (Battleground Europe): bad fps drops when
                    playing certain sounds
           Product: Wine
           Version: 1.1.8
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: directx-dsound
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: rasto at ns.ksp.sk


The game suffers very bad fps drops (from ~60 to 0.5-0.2 for few seconds) when
certain sounds are played with hardware sound selected. This occurs in all wine
sound configurations. 

Soundcards tested: 
1) Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
2) E-mu 0202 USB

To reproduce:
Install wwiionline (download from ftp://downloads.wwiionline.com/). 
Run WW2_sse2.exe (or any other executable) to go to offline training. 
Select a two-engined bomber/transport aircraft, for instance the C47. 
Start engines with "e". Wait a few seconds until the aircraft starts to roll
slowly. Now turn the engines off with "e" again. The problem is most pronounced
when turning the engines off like this, but appears (often to lesser extent)
often, making the game unplayable with sound. 
Seems to be present with sound both "hardware" and "software" but not with
sound "disabled".

Occurs in all wine versions tested, from 1.1.3 to 1.1.8. OS is Debian, wine
built from sources.


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