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#11
@LPDad: My optimal solution was to keep the MMCS service running, as if you turn it off your audio may start cackling/skipping in an annoying fashion. However, I disabled the network throttling component of this service. I believe it's a general audio problem specific to Windows 7 and multiplayer / online games. I don't think the audio card or the drivers make a difference, or at least they didn't in my case.
Leave the multimedia class scheduler service running, but disable its network throttling feature:
- Open regedit
- Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Multimedia\SystemProfile
- There will be an entry for network performance throttling, default value is 10; set it to FFFFFFFF hex (willl look like 0xFFFFFFFF to the right of the entry)
- Reboot
This removed the lag I was experiencing while still enabling me to have normal sound in-game. Specs in profile.
If you disable the MMCS and you still experience glitchy, lag-like behavior (sound glitches like crackles, pops, stutters, and skips are expected when you disable it!) then you almost certainly have a different issue. Another way to troubleshoot is to disable your sound device in device manager and see if you still experience lag spikes. I strongly advise you first try disabling your sound device and testing before messing with the registry, since it's much easier and I don't think it requires a reboot.
@Corpsecrank: You have a different issue. It almost sounds like you need to increase the throttling being done, not remove it. It seems odd to me you're having trouble, since you have a quad-core and stuff. Your audio IS glitching out, but apparently you're not having lag or ping oddities. Therefore you should not disable MMCSS. Try using something to play audio other than creative audio source.
@unrl: Try disabling your sound device in device manager, and see if the lag persists. That will help narrow things down. Also, your processor is bottle-necking that 4850. A faster CPU would probably help you. I suspect you are actually having fps issues. Lag spike != fps drop. Edit: I read your thread, and it appears you are indeed having lag spikes. Disabling the MMCS should have alleviated this, but confirm by disabling your sound device.
I cannot help you guys if you are not clear about what your problems are. Here is an example of a thread where I was able to identify this problem and provide the solution: Counter-Strike Series & Windows 7 = Lag?
Updated original post with current information.
Last edited by pinstripe; 18 Nov 2009 at 17:33.