Audio out of sync when capturing with IUVCR...

[kidfob]

Hello all. I am using IUVCR on my XP machine to serve as a digital VCR. I've run into problems with audio/vidoe sync. It's pretty bada as the lips don't match the dialogue. When I use AVI_IO to capture the sync is perfect. I would just use AVI_IO but the developer has been unable to get the channel tuning to work with XP's WDM capture drivers.

I'm at a loss. Does anyone know if it's possible to fix this issue? It appears to be a software problem rather than an IRQ/motherboard issue since one application works and another doesn't. Thanks for listening.

[CogoSWSDS]

What frame rate are you using with IUVCR? I had horrible sync problems with VirtualDub until I realized that NTSC video is 29.97fps not 30fps; I was trying to capture 15fps and my audio was always 0.5sec out of sync; lowering the capture rate to 14.99fps fixed it. If you're trying to capture at 30fps, try changing it to 29.97fps and see if this fixes your sync problem.

CogoSWSDS

[kidfob]

Yes, I capture at 29.97. Thanks.

[dubie]

kidfob,

what do you have your audio settings at? When I'm capturing at 29.97fps, I have my audio at 16khz, 16-bit stereo and it works decently...hope this helps..