VHS Conversion - Audio Out Of Sync

[Vance]

I am attemtping my first home movies conversion from a VHS tape and while the video quality is quite good, the audio is out of sync. All the video has been capture in .avi format and it seems that the further I get into the VHS tape, the worse the audio is getting.

Where can I go to learn how to correct this? Can anyone suggest a particular "how to" article? Is this something that can be fixed by a newbie or am I just going to have to live with it?

Thanks,
Vance

[reboot]

It can be fixed, but we need a lot more info.
What are you using to capture, what codec(s)?
How have you hooked up the VHS to the computer?

[DRfrankenpimp]

if you have virtual dub,load the movie in virtual dub,select video, frame rate and select change so video and audio match.this usually fixes the problem in vhs. if that does not work try under audio the interleaving and change the audio delay,play with the settings and see if you can sync it.there are several avi audio sync programs that do it for you but vd usually fixes it.select direct stream copy and make a new copy of the avi.the frame rate may be different from the original but if you encode to vcd or dvd that usually d oes not cause a sync problem in the mpeg.if that does not work i might have a sync program that will do it for you.

[Capmaster]

Are you using a timebase corrector? You should for tape captures.

[Ward River]

To eliminate progressive sync issues like the one you describe you should capture with VirtualVCR and use the resample audio dynamically option on the AV Sync tab in settings. The only thing you might have to compensate for at that point is the delay that is inherent of a PC-based capture. Most machines have them and depending on hardware configurations the size of the delay offset used to correct will vary, but once you find the offset for your particular machine just enter it in the AV Sync tab in settings and you'll most likely not have to worry about audio sync problems again - save for really bad tapes that result in loads of dropped frames durring capture. That's really when you need a time base correct device like mentioned previously. If you aren't dropping an excessive number of frames when capturing then you dont need to worry about a TBC unit, in my opinion.