don’t know why this is technically happening but whatever, it works like a charm.
So I just shot a 14 min clip with my 3yr old son talking about monsters and such. Captured audio with both the 5D and Zoom H4N.
1. When I play both files straight from the desktop in Quicktime they are in perfect sync throughout the ENTIRE 14 min period.
2. When I load them into FCP after about 4 min I start to notice sync issues. FINAL CUT PRO IS THE CULPRIT !
3. When I simply change the speed of the audio clip to run at 99.9 % of it’s original speed, wahlah, it’s back in perfect sync from 0 to 14 min.
I suspect FCP has got some sort of latency problem occuring ? I’m not that saavy with complex tech issues but the 99.9% speed change has seemed to solve the problem perfectly.