Joining AVI's with synch audio, creates AVI with asynch Audio in only 2nd half

[alfredska]

I have two halves of a movie (GoNY) encoded with Divx 5 and AC3 audio into AVI container. Note that this movie originally comes from two DVDs as it is 2:50 in length. I have attempted to rip and encode these two discs in two methods, both resulting in asynch audio.

1) DGIndex - When loading all VOBs from DVD1 and DVD2, and then creating a project file, the resulting full length movie is out of synch with audio for only the second half.

2) Nandub - After encoding each half of the movie separately, each with AC3 as their audio source, I used Nandub to join them. The resulting movie was out of synch with audio for only the second half.

Reading some others posts about similar problems, but using mpeg, I assume my audio and video are of different lengths for at least the first half of my movie. If this is correct, and I'm not interested in chopping frames from the movie (unless its only a few), can anyone make a suggestion about how to extend/chop the audio so that it is in synch?

I could be incorrect about the problem from the start, if you have any advice, it would be appreciated.

BTW, GKnot 0.35 used to encode and the full length movie is about 2.5GB in size after either method of joining. (Does the AVI 2.0 spec allow >2GB files?)

[ammck55]

Please read the Announcement located at the top of the Newbies Forum Homepage.

Thread closed.

[alfredska]

I attempted to use Doom9's VirtualDub guide, but perhaps I'm doing something incorrectly. For the case where both halves of the movie have been encoded already, and note that they both play synchronously with audio, I tried to open each with VDubMod and set "Select Range" to the first and last keyframe with the option of extending or chopping audio. Then after saving each file individually, I tried to join them. Same problem, the first half of the movie is in synch, and instantaniously when the second half of the movie is reached the audio becomes very out of sych.

[alfredska]

I just wanted to try to bump this one last time in case anyone can help. If none, I'll leave this thread for the bottom dwellers.

[mimungr]

Process the two disks separately with DGIndex, then join them in avisynth using AlignedSplice.

[manono]

This post gives other solutions to the problem:

http://forum.doom9.org/showthread.php?p=352858#post352858

[alfredska]

These replies are very releavant and I'm surprised I didn't find them in my searches. I'll try the solutions out tonight. Thanks much for your help.