"Sync game to audio" creates motion sututtering (SVN945)

[treepeach]

I get the same. 3570k, AMD 7950 HD - annoying stutter with "sync game to audio", with any combinations of settings including disabling audio. Same results with either a sound card (X-fi using OpenAL) or onboard (DS or XAudio2). DPC latency checker reveals less than 100 microseconds latency at all times (usually around 40). I can replicate this in all the machines in my house. Afterburner's 2.3.0 fps counter that updates many times a second never dips below 60fps, yet the visuals stutter.

 

IDK if it's because I'm highly sensitive to frame dropping or not but I assume there are others out there with the same problem. Could you please take another look at this/suggest a fix? Without sync game to audio I get fps problems - the games run about 5fps too fast, and it's noticeable.

 

P.S Regarding frame buffers, is there a reason why 2 frames is the minimum? I don't have anyone to help me A/B but Rhythm heaven feels pretty different depending on what the buffer is set to. Not complaining, just curious.

[Squall Leonhart]

is your display running at 65hz?

 

if not it should vsync to 60fps.

 

Its still not reproducible on this end, though I have found with certain other emulators that the switching from 3d clocks to low power clocks can make it appear to stutter.

 

Try forcing the drivers to specify max performance when running the emulator.

[treepeach]

my display runs at 120z which is probably why the most reliable speed setting i have is audio sync. i've just tried forcing 3d clocks as you suggested but the frame skips are still there.

 

i'm getting a new sound card in the next few weeks, will come back and report if anything's changed.