Audio OOS throughout movie

[likwid8]

Trying to encode this AVI source video file which is in sync, but when converting to DVD (mpeg-2), the movie goes out of sync.

I used the audio gap feature in the TMPGenc Authoring Works 4 and it seemed to correct the problem but only in the first 25 minutes of the movie, then it goes out of sync again as if the sync delays are different in selective parts of the movie.

I know the original AVI was perfectly in sync, and I also know my other mpeg2 encoded files worked fine but every now and then I seem to get this issue and was wondering if this has something to do with the build frames inside the avi structure?

Was thinking it might be the framerate but I've converted 25fps -> 29.976fps all the time. Would and could try another program but I doubt its the program as I explained earlier it only happens on a very few avi files, any help is appreciated.

[Taurus]

Maybe your avis got VBR Audio.
I dont know anything about TMPGenc Authoring Works.
To make sure, post a MediaInfo log of an unsynced Avi
and a synced Avi.
Audio is MP3?
Not enough information anyway...

[setarip_old]

@likwid8

Hi! it only happens on a very few avi files

1) What software and procedures did you use to create these problematic "very few avi files"?

2) What software and procedures did you use to create your non-problematic .AVI files?

[manono]

Was thinking it might be the framerate but I've converted 25fps -> 29.976fps all the time.
Then you should know that you don't convert them to 29.97fps but to 23.976fps. The resulting audio should be longer than that of your PAL source, not shorter. Unless your video encoder is doing stupid stuff like converting 25fps to 29.97fps by duplicating or blending frames. Then the answer is different.

Nor have you told us how you created the DVD compliant audio. Unless it was with some TMPGEnc product (none of which I use either).

And I think setarip_old's question is valid as well. We don't look kindly upon downloaded AVIs at this site. In addition, many of the people creating these things don't know the first thing about creating AVIs properly. And who wants to diagnose problems created by idiots?

[likwid8]

Fair enough, I ended up using TMPGEnc Xpress 4.0 and it fixed the problem.

The avi was from a movie trailer I found and I wanted to edit it for a project. I guess I found the solution without having to rip my eyes out, thanks.