Audio sync problem in Avidemux

I’m using an external AC3 audio source and selected Build VBR Time Map, but still getting bad sync. Is there anything more I need to do?

Thanks in advance.

Have you tried the resultant file in another PC/standalone player … your codecs might be messed up, and only affects playback on your PC :slight_smile:

The obvious setting to change is the video frame rate, make sure it matches the source. Most sync problems I’ve had in avi-demux, that solves the problem.

However, even with the correct video frame rate setting, I’ve still had problems with audio sync on avi-demux, so I’ll be watching this thread.

I’m an amateur, so take what I say with a grain of salt, but the problems I’ve had here are mainly with DVD ripping scenarios, and I think it may have somethig to do with the use of variable frame rates on certain DVDs.

Perhaps someone can confirm or dispute this, but that just a theory. I don’t even know what tool I would use to analyze a file to confirm this.