Hi all.

I'm using Snes9x 1.5.3 on Mac OS X Lion 10.7.3, on a late 2011 Mac Mini i7 2.7GHz, so plenty fast for Snes9x.

I noticed that when I leave the frame skip to "auto", sometimes the sound will jump, kind of like missing a note.

So I tried setting frame skip to "0" and noticed something weird with the frame rate: The frame rate then varies between 57--58 FPS, but under "FPS" there is a small "60/60" that appear, and my sound skips even more.

With turbo I get over 900FPS, so I don't think it's a power issue

the issue likely is trying to force 60 exact frames through a 59.94 vertical refresh.

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VBA-M Forum, NGOHQ

Try different buffer length values, 16, 32, 48, 64, etc all the way up to 210ms. I use 112ms and it stops all the crackling on my end, so try each value if you want.

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Set frame skip to 'auto' and try to modify sound settings in Preferences dialog.