Sync problems

[manny_j33]

hi i convert using tmpgenc plus and im getting a 1 second delay of the audio compared to the video i tryed avi decompressor program but that still gave me the same problem would splitting the audio using avi2dvd solve the problem?

[mats.hogberg]

Probably not. What is your source?
If the offset is constant thru the whole movie, you could try to compensate it in TMPGEnc with Audio delay (can't exactly remember where it's found, but it is there somewhere!). Much easier than trying to get to the bottom with the problem.

/Mats

[sanjayk]

Here it is

[mats.hogberg]

Thanks, sanjayk! Been a while since I use TMPGEnc!

/Mats

[sanjayk]

... Anytime

[manny_j33]

its avi source would that still work? and what other ways are there?

[mats.hogberg]

Yes, it'd work for AVI.
Another way (to fix an already encoded file), is to demux the audio, convert to wav, add some silence/cut some off the start of the audio to compensate for the misalignment, reencode audio back to whatever format it was (mp2?), multiplex back together with video again.

/Mats

[manny_j33]

hmm theres a problem i do alot and they work fine but some divx have audio sync problems near the end of the file so the first hour its usually good then the last 30 minutes its out of sync and its only 1 file
when i play the avi's on pc they run good the whole way through but only when converting they have sync problems the last 30 minutes or so

[mats.hogberg]

That usually indicates some error in the AVI at the point where the audio goes out of sync. Very frustrating task to fix that kind of error, it is!
That an AVI plays fine is no indicator for if it's good or not.

/Mats

[sanjayk]

Usually demuxing the video & audio form the AVI file and converting them separately to required specs and then re-muxing the streams will solve the sync problem.