avi (divx aud+vid) => tmpgenc VCD audio outta synch

[buzzinhornets]

damn... encoded a bunch of tv episodes to VCD with tmpgenc... using powerdvd, everything looked fine... then i watch some on the tv and the mouths don't match words... i think this has to do with the audio being encoded in divx also... in the past, when the audio is compressed with xvid or mp3 or divx, i usually decompress the entire audio in virtualdub b4 encoding in tmpgenc...(that usually works), but since i have a ton of .avi files, that would take up too much drive space...

do you think frameserving from vdub to tmpgenc would solve the problem? is there some other way to avoid the audio fallin out of synch?

[buzzinhornets]

so i've read these forums, and one thing i was gonna try is usse vdub to fix the 2sec delay... BUT, the problem doesn't show up in vdub??!! it plays fine... it's only outta synch when the file becomes a .mpg i tried using vdub to save a .wav then encode the video and audio sepearately, but still outta synch.... although the .avi and .wav have the same time length... why can an .avi play normally, but the encoder doesn't encode it normally? (the audio is .mp3 by the way)

[mats.hogberg]

Playing and encoding isn't the same thing. A player can overlook difficulties in decoding the source, just skip ahead, an encoder can't do that. Is the MP3 audio CBR or VBR?
Is it out of sync by the same amount all the way, or does it change at some point, or does it slowly drift out of sync?

/Mats

[buzzinhornets]

CBR, it is out at first, then slowly in, then out... or maybe it's out all the way...

[mats.hogberg]

Sounds like bad/undecodable frames in the AVI - did you check it with VirtualDub MP3 Freeze?
Do you encode to the same frame rate as the source?

/Mats