Odd Vegas audio behavior

farss wrote on 5/10/2004, 7:00 AM
Don't even know really if this is a Vegas oddity or not but here goes.
Making archives of clients work by copying .avi files to DVD. One of them had a problem when we captured from tape, nasty 8 frame head clog. ASked client for tape back but she said she also had backup from FCP on CD.
So after I renamed the FCP backup files to .avi and loaded onto new track on original project and trimmed off the handles and removed the Vegas little fade at the cut all looked and sounded exactly like what I'd captured from tape. Wow, imagine that! Vegas and FCP living in harmony. Hope for the planet yet!

Anyway, just to check that the audio was the same I inverted original track and mixed the two at the same level, should get nothing out right. We'll I got a very little bit out maybe -40 and no bottom end, kind of what I'd expected, maybe something got very slightly out of whack in the process. So I went backup the TL and played out another section and got nothing, I mean like VU meter not moving a pixel nothing. Hmm, do I have a minute phase shift along the track, are the clocks out a smidge. So I went along a bit further, and back comes 'leaking' sounding audio. But go back to where I'd started and there no sound at all. Just seems to come and go, once it's there it's there for the whole track, once it's gone, it's gone for the whole track.

Very strange, sort of like a singularity in physics. Far from a show stopper, I only need to substitute 8 frames of video and I'm done but I'd still like to hear any theories as to why this is happening!

Comments

farss wrote on 5/10/2004, 7:05 AM
OK,
so here's another clue. If I play it out with both tracks on cancellation is 100%. If I then mute 1 track, get full sound (as I should) but then unmute the track I get the 'leaky' audio. Maybe it has something to do with how Vegas locks the samples together?