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Klay · 06-21-2012, 08:07 AM

I am Win7 32-bit using "suggested settings" for a few years and update system, drivers and programs regularly. This computer really doesn't do anything else but WMC. All formats play smooth, fine and in sync to a Sony panel through Media Center using a GeForce 9600 card through HDMI and digital audio. Except MKVs. The audio is almost always slightly behind then will try to catch up. When it tries to sync, the image jerks ahead. Back and forth, in and out of sync and skipping. I have not fiddled with any audio settings although a +6dB gain from FFDShow audio would be nice.

Shark007 · 06-21-2012, 08:12 AM

On the Audio TAB, use the button to [disable LAV audio]
and check the box directly below that for normalization

Klay · 08-01-2012, 10:06 AM

(06-21-2012 08:12 AM)Shark007 Wrote: On the Audio TAB, use the button to [disable LAV audio]
and check the box directly below that for normalization

I have been changing settings and here's what I use so far:
Reset
Suggested
Disable LAV
Enable Normalization
Configure FFD audio-check all off.
Add Delay in FFD. Add 20ms to each output for better lip sync.
Disable AC3 filter

This results in very good, smooth MP4 playback and I will choose this file format over the MKV. However, MKV playback is still jittery at times, skipping frames and such. I'd like to use MKV because of the greater resolution but I'm OK for now with the smaller file size d/l.

Any ideas are welcome.