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View Full Version : Help with bad mp3 audio track in avi file


Roscoe62
27th June 2009, 23:26
Hi,

I have a TV episode in an avi file. The video is xvid and the audio is mp3 - VBR I think. When I try to play the file on my player PC (using zoomplayer) I get video, but no audio.

In an effort to try to find the problem I threw the file into mkvmerge to convert it to an mkv file (not because that's what I wanted, but just to see how mkvmerge coped with it. It ended up throwing up this message in the output window:
"This MPEG audio track contains 104 bytes of non-MP3 data at the beginning. This corresponds to a delay of 2ms. This delay will be used instead of the garbage data.

Additionally, I get multiple messages in the Warnings window:
"Warning:<filename> track 1: This MPEG audio track contains <various numbers> bytes of non-MP3 data data which were skipped. The audio/video synchronization may have been lost."

Indeed the resulting file has major sync problems. Also, trying to work out what delay value to use doesn't seem to work either because what I end up with is audio in sync at the beginning and out of sync at the end.

I've also tried feeding the file through a number of "one-button avi fixing applications" to no avail.

This is one episode of a series. All the other episodes are fine, but this one is problematic, and I don't have another source for this particular file.

Can anyone tell me how I can get this file into a good working order? It doesn't matter if it takes a lot of work (I'm kinda resigned to the fact that this IS going to take some work) but I REALLY need to get this file working properly.

ANY help is appreciated!

setarip_old
27th June 2009, 23:59
Hi!I don't have another source for this particular file.If you don't have another copy of the .AVI that you made, simply re-rip the original DVD containing this episode...

Roscoe62
28th June 2009, 01:36
Hi!If you don't have another copy of the .AVI that you made, simply re-rip the original DVD containing this episode...

Sorry, can't do. I got this episode from the net as this program doesn't air here.

Roscoe62
28th June 2009, 01:57
I know you can use a program like avisynth / vdub to sync the audio with the video at multiple points. i.e. manually try and sync up the audio every x frames.


OK - this sounds like it could work. I guess I just do a search for syncing audio via avisynth/vdub?

Is the audio file the exact same length as the video, if not maybe you have stretch / shrink it until it is. Again I'm pretty sure you could this with avisynth / vdub.

Sounds like another search coming up...I don't know if it's the exact same length - guess I'll have to demux it somehow and check somehow. Any recommendations for tools to do this?

setarip_old
28th June 2009, 03:31
@Roscoe62I got this episode from the net

OOOOPS!