Sound desyncs over time

radarridr · 06-23-2014, 11:42 AM #1

I was playing Guitar Hero: Warriors of rock on dolphin, and after playing any song for about a minute or so, the sound would get ahead of what was being displayed on the screen. I tried multiple things to fix this, downloading the newest version of the emulator, trying all possible audio backends, but the desync still happens. I don't know if it's an issue with just this game or if it's happening in others as well.

**DJBarry004** · 06-23-2014, 11:44 AM #2

Try with single-core mode.

radarridr · 06-23-2014, 11:55 AM #3

(06-23-2014, 11:44 AM)DJBarry004 Wrote: Try with single-core mode.

That didn't help, after about a minute or so i noticed the sound was ahead of the visuals again.

Gir · 06-23-2014, 12:45 PM #4

Sound ahead of visuals is likely cos Dolphin is running NTSC Games too fast e.g. 60 FPS
and not at the NTSC Field rate, 59.940056 or 60000/1001 .

PCSX2 Emulator does this right.
https://code.google.com/p/pcsx2/source/detail?r=4925

**mbc07** · (This post was last modified: 06-23-2014, 12:58 PM by mbc07.)

Try DSP LLE...

(06-23-2014, 12:45 PM)Gir Wrote: Sound ahead of visuals is likely cos Dolphin is running NTSC Games too fast e.g. 60 FPS
and not at the NTSC Field rate, 59.940056 or 60000/1001 .

PCSX2 Emulator does this right.
https://code.google.com/p/pcsx2/source/detail?r=4925

Hm, no. Dolphin already fixed that some time ago (it was right before the transition to GitHub I think)...

Gir · (This post was last modified: 06-23-2014, 01:02 PM by Gir.)

(06-23-2014, 12:54 PM)Jhonn Wrote: Try DSP LLE...

(06-23-2014, 12:45 PM)Gir Wrote: Sound ahead of visuals is likely cos Dolphin is running NTSC Games too fast e.g. 60 FPS
and not at the NTSC Field rate, 59.940056 or 60000/1001 .

PCSX2 Emulator does this right.
https://code.google.com/p/pcsx2/source/detail?r=4925

Hm, no. Dolphin already fixed that some time ago (it was right before the transition to GitHub I think)...

It was fixed but was never merged.
https://code.google.com/p/dolphin-emu/source/list?name=NTSC5994

radarridr · 06-23-2014, 01:23 PM #7

(06-23-2014, 12:54 PM)Jhonn Wrote: Try DSP LLE...

I've been using DSP LLE this whole time.

**JMC47** · 06-23-2014, 01:43 PM #8

Possibly related - http://code.google.com/p/dolphin-emu/issues/detail?id=7222

Gir · 06-23-2014, 04:09 PM #9

PAL-60 and EuRGB60 also run at the NTSC Field Rate.

**mbc07** · 06-23-2014, 05:06 PM **#10**

From comments in issue 7222, NTSC Field Rate has nothing related to this audio issue...