Video and audio lengths don't match

RickD wrote on 12/13/2008, 7:27 PM
This is a problem that I have quite often with Vegas. Can anyone provide some insight?

I have a video clip that is one minute long. It plays fine in Windows Media Player or any other application that plays or edits videos. G-Spot says nothing wrong.

When I load this clip into Vegas the audio track is one minute long as it should be, but the video part is only ten seconds. Nothing I try in Vegas will correct the problem. What's going on?

Comments

ushere wrote on 12/13/2008, 8:32 PM
what format is the clip?
RickD wrote on 12/14/2008, 8:49 AM
mpg

video codec = MPEG2
audio codec = AC3
Former user wrote on 12/14/2008, 11:16 AM
The problem is the AC-3 audio. Vegas (and most other editors) cannot handle AC-3 audio source. AC-3 is designed as a delivery type, not an editing type.

Dave T2
RickD wrote on 12/14/2008, 11:20 AM
I don't really need the audio - I'm just loading it into Vegas to get still photos from the video. Even if I delete the audio - either in Vegas or before loading it (i.e. with a video splitter application) the video still does not show up correctly.
rs170a wrote on 12/14/2008, 7:04 PM
Rick, the only time I've had this problem is when I tried to import a student's video that was shot with a Panasonic DVD camcorder that recorded to DVD-RAM.
I gave up after a day of trying and told him to shoot miniDV instead.

Mike
johnmeyer wrote on 12/15/2008, 7:34 AM
I assume that this is not just MPEG-2, but is actually a VOB from an existing DVD. This is a known problem. Search for my user name and "Womble" and "DVD Shrink" for a solution.

You can put the MPEG-2 onto the Womble timeline and do a no-loss copy to an MPEG-2 file. The DVD Shrink method is free, but only works some of the time (a lot depends on the AC-3 file and how it was encoded -- Vegas handles embedded AC-3 sometimes, but not always).

Demuxing and remuxing is another option. Once the MPEG-2 is in a VOB file, you cannot rely on Vegas to read it correctly without doing something like what I suggest in other threads.