Audio and video out of sync in MPC

[KitKat]

I wonder if anyone else has been having this problem. I like to play all my .mkv files in media player classic, because I like it better than vlc, and sometimes vlc likes to randomly crash on me which doesn't make for good anime watching. However, lately I've been noticing that when I'm watching certain .mkv files in mpc, the audio and video will become progressively more out of sync. It will start out fine, but be pretty atrocious by the end. I can fix it if I stop it and restart it at the place where I want to pick up, but it's getting annoying. Any ideas on what's causing this and what I can do to fix it?

[Paulyboy]

Oooh! I can help you with this one, used to happen to me.

http://ffdshow-tryout.sourceforge.net/


This helped me alot, but if the beta is not good for ya, use the older stable version

http://sourceforge.net/projects/ffdshow

Now with the whole VLC crashing problem, you may have to uninstall VLC and take it out of registry then install again.

Hope that helps.

[Board of Command]

It could be that your computer isn't fast enough to decode the video, so the video runs slower with respect to the sound.

What H264 decoder are you using?

[Ryllharu]

When I had the same issue, it was entirely because my computer was too slow.

When I switched to CoreAVC (http://www.coreavc.com/) (and later paid for it) the problem disappeared. When you're dealing with h264, it helps a lot if you are using a more efficient codec.

[Kraco]

There are also some bad encodes around, especially from less known groups. Like encodes with a (redundant) fps of 119 or so, which may perform quite poorly indeed. I've also encountered some encodes, which showed desync only during the last half a minute (preview), having played pretty much perfectly before that. I never could figure out what caused that. To continue the list I've encountered SD encodes that played poorly (despite normal fps) though normally I've little troubles playing 720p. I think some groups are simply experimenting with their encoding settings and producing less than stellar results, which may be partially incompatible with either ffdshow or CoreAVC (or even both).