Another "audio sync creep" question

[BagOfSnoo]

This one's driving me crazy.

I made an AVI, which is all in sync, the whole time. I used MP3 compression at 22kHz and when I convert to MPEG, the audio is slightly slower than the video. It starts out in sync, but slowly drags behind. Any of the sync fixes I have seen assume it's all lined up together, just offset by a few ms.

I tried extracting the sound with VirtualDub (save as Wav) but when I encode from the two different sources the same thing happens.

Any way I can fix this? Capturing it all over again would be a pain, and I wouldn't know if I fixed it until I got way late in the game anyways.

[Lextorite]

At what frame per minute did you capture the avi file ??

Best captures are 29.97 for NTSC and 25 for PAL/SECAM.

Don't bother capturing at other settings cos your audio will be f**ked and picture will be choppy.

[BagOfSnoo]

I recorded at 29.97 fps. Unfortunately the default was 320x240 so I didn't quite get the right screen size.

I used Indeo 5, and the encoding was solid enough so I got average 30 fps while running.

[bugster]

when you convert to mpeg do you also encode at 29.97fps cos if not that could be your problem

[BagOfSnoo]

Yes, I've tried TMPGenc, with the default templates and with "unlocked" tweaking.