Virtualdub audio sync problem

Are you using files that are compatible with at least one of the codecs, and are you experiencing the problem with each?

Ok, sorry, try this: Open vdub, and open your video file. Then go to the audio tab and select "Full Processing Mode". Then go to File -> Save Wav. Now go open Besweet (if you don't have it yet go ) When installed BeSweet use it to convert the wav file to an mpeg4 compatible audio file (that's what you want right?). Then try encoding with your encoder using the new audio file..

Thx. But sorry, I still don't get why I should encode the audio outside VirtualDub. What do you mean by "MPEG4 compatible audio"? MPEG4 is a video standard. How can audio be "compatible" with it? Also, are you suggesting that VirtualDub's audio encoding has some sort of problem?

video includes audio, you can separate these two, mpeg4 has different a different type of audio then mpeg2 why don't you try this , and see if you get the same problem..

I have been interested in trying about the same operation, I think. I want to extract the audio from a MPEG2, PCM and convert it to AC3. I have an AC3 encoder included with DVDit but I'm sure sure exactly the steps I need to take. Can You advise me? Also are there special steps to take to be sure of synch? Thanks for any help!

Well, do you have TmpgEnc? (Download ) Open it Go to File -> Mpeg Tools -> Simple De-Multiplex Select your mpeg2 at input, make the box "Video" empty (or else it will take much more time, and you only want a wav) you'll get a mp2, you can convert this to wav first (recommended) or directly to ac3..

I've also noticed that full processing (either downsampling or stereo to mono conversion of either AC-3 or MP2 and encoding (with Fraunhofer's MP3, in my case) of audio in VirtualDubMod creates desync. I can use BeSweet to transcode and mux the audio via VirtualDubMod just fine, though.

Just another way to demux. Instead of simple demux and having to uncheck the movie box, choose demux and double click the audio stream and that is all you will get.

Ok, i get it..

You're always welcome! :D I'm glad it worked