AGK audio/video sync problem

[TakuSkan]

I'm pretty new at video work, so forgive me if this is a common question. I've searched through the forums, and haven't been successful at resolving this issue.

I'm having audio/video problems with some AVI capture files I've compressed with with AGK. I have and old ATI All-In-Wonder 128 Rage card on a system running WinXP. I have a large uncompressed 15GB AVI I captured with the ATI software that came with the card, and when I ran it through AGK, the A/V in the resulting file was out of sync.

However, after running a number of tests in the past few days with software I've downloaded from Doom9, I've found that I don't have the same problem if I 1st capture the video with VirtualDub. A/V in it ends up synced properly after compressing w/AGK.

I'm more interested in finding out if there's some way I can fix the problem with that 15GB AVI than I am with figuring out why it's happening, tho' both would be nice. I blindly (ie: not really having much of an idea what I was doing, and what I was doing it with) ran an app called Video Fixer on a test AVI captured with the STI software. But it didn't resolve the problem.

Any thoughts or feedback would be greatly appreciated.

Thx,

TS

[jggimi]

Moving to analog capture forum...

[CWR03]

It's not a problem you are going to correct easily - it's very common with files captured with ATI cards to lose synch since they use the PC's audio hardware to capture sound. In order for the two separately-captured parts to remain in synch, something would have to interact between them to control it, but instead it relies on the PC's clock. There will always be A/V drift when you capture with the ATI software.

[TakuSkan]

- Moving to analog capture forum...Wow... you guys are on your toes! Impressive.

- it's very common with files captured with ATI cards to lose synch since they use the PC's audio hardware to capture sound.Okay... thanks for explaining that CWR03. I was hoping I could salvage that old captured AVI, but I guess I'll just axe it and start over with VirtualDub.

I've been very busy with tests and researching all of this since my post in the Newbies forum. I had minimal success using TMPGEnc to get a bit better the video quality when compressing captures before burning them to DVDs, but nothing earth very shattering. But I am slowly getting a better grasp on these processes.

TS