How to add/fix audio skew in VirtualdubMod?

[neomaine]

I've got an mpeg2 video with ac3 audio created with vob2mpeg. The mpeg plays perfectly in sync. However when converting to divx with VirtualDubMod it adds an audio skew at the start of the resultant avi.

Does anyone know how to:

- Avoid the audio skew in the first place
or
- Change a setting in VDM to offset the audio to have aud/vid sync (the auto option doesn't work...)
or
- Demux, add skew to audio, remux

[manono]

Change a setting in VDM to offset the audio to have aud/vid sync (the auto option doesn't work...)

Streams->Stream List->Right-click the audio->Interleaving->Delay audio track by xxx ms.

Demux, add skew to audio, remux

DelayCut can do that.

However when converting to divx with VirtualDubMod it adds an audio skew at the start of the resultant avi.

How do you know that? How do you know there wasn't already a delay in the MPEG that wasn't taken into account when you converted to DivX? If you are incorrect in your assumption that the conversion to DivX was responsible, then:

Avoid the audio skew in the first place

Find out the initial delay. One way is to open the MPEG in DGIndex and Save Project File. The resulting AC3 audio will have the delay as part of its name. Add that same delay to the DivX audio, or use DelayCut to get rid of it entirely.

[neomaine]

manono,

Perfect on all counts! I'll use the delay from DGIndex file name in VDM....