Very weird ASync audio problem

[The Daishi]

I can't seem to get this right!

Ripped a DVD with GKnot, set it all up according to the Doom9 guide.
I've done this all before, it all works fine.

Except this time.

DVD2AVI read the audio delay as 0ms

I encoded it, the audio starts of at ~240ms earlier than the video. I tried to correct this using Nandub. It appears fine until you skip to the end of the vid. The audio is a full quarter second async again!

The only solution I've come up with is re-sync it the best I can, split the avi into it's respective 700Mb chunks and re-sync the second half :(

This minimises the problem, but it's still crap...

Any ideads?

Ta,

Jim.

[jggimi]

You may have synch problems if you 1) use MP3 audio and 2) use a bitrate below 128kbps. LAME downsamples 48khz dvd audio to 44khz by default below 128kbps.

If that's your trouble, use --resample 48 and the problem will go away. For example: --alt-preset 96 --resample 48

[The Daishi]

Nope, I used --alt-preset 192, 2CD rip

I think it's just a really poorly authored DVD, even real DVD players have problems with the audio sync, Especially the PS2...

Could it be anything to do with the interleaving options? I have it set at 500ms and 2 frames.

This is so annoying...

ta,

Jim.

[rolonzos2]

I'm sure someone will want to hang me fore this, but try using HeadAC3he.
It might just be able to pick up the right delay time from the AC3 file.
If not, you can manually enter in a good delay time since you know about how much the audio file is off.

Once again, someone will hang me for this, but I never use interleaving. I disable it. All my DivX end up fine, and I can edit them without issues too.

[Ookami]

@The Daishi

Check the Avisynth forum, there is a audio sync script (something like that, haven't tested it)... Maybe it'll help.