strange audio problem

[aldaco12]

Hi. I found this strange problem. I say 'strange' because this problem doesn't seem linked to the use of MP3 VBR compression instead of MP3 CBR.

This is the problem:
- I have an AVI which, apparently, is perfect. A/V is in sync but, when I perform in VirtualDub 'File___File information', I see that the video is 1:33:42.20 long, but the audio is 1:33:26.28 (that is, 16' less!).
The result is this: if, for testing, I create a MPEG-1 from that AVI (well, exetly loading the video part from that AVI and loading , as 'audio input', the uncompressed WAV I made from that AVI), the sound is out-or-sync of a constant amount (but 'by ear' I can feel it is some thousands of milliseconds, not 16 seconds).

Is there a way to detect exatly (and not 'by ear') the A/V delay which will be created, so I can correct it by using some audio encoder?

Thanks.

[tebasuna51]

Try to open the original avi with AviMuxGUI. Select, Append video and select audio in bottom window. See at right side the delay.

[aldaco12]

Thanks.