Audio Drift Mystery at DVinfo.net

Alfred Diaz · February 19th, 2008, 03:26 PM

I just read about a half-dozen threads of people who have the same problem I have. A long concert that is in synch at beginning but off at the end (in my case about a full second).

This should not be happening. When I watch the clip in QT, it is perfect. So why is FCP having a problem with it.

I don't think it's a camera issue. I use the XL2. I also edit in Premiere Pro. I did other concerts in PP and it never did this. And as I mentioned, why can I still watch the clip perfectly in synch in QT?

Sounds like a FCP problem, not an XL2 problem.

Any true solutions out there? At this point I refuse to adjust the length of the video to match the audio.

Thanks.

Alfred

Mike Barber · February 19th, 2008, 04:15 PM

Is your footage in 24 or 30fps? I can't recall if the XL2 did 24fps or not. I have had issues of sound sync in FCP (but not in QTP) when I had 24pA footage on a 30fps timeline... even after changing the timeline to 24fps the issue remained because you have to make those changes before you insert the clips onto the timeline.

Alfred Diaz · February 20th, 2008, 06:50 PM

It is 24p. But I did all of the above mentioned. Still, I will set the sequence settings and place the clip again. Just to make sure. I know I had the setting right while capturing, but I can do that again, though I don't want to.

Al

February 19th, 2008, 03:26 PM	#1
Alfred Diaz Regular Crew Join Date: Mar 2006 Location: Washington State Posts: 88	Audio Drift Mystery I just read about a half-dozen threads of people who have the same problem I have. A long concert that is in synch at beginning but off at the end (in my case about a full second). This should not be happening. When I watch the clip in QT, it is perfect. So why is FCP having a problem with it. I don't think it's a camera issue. I use the XL2. I also edit in Premiere Pro. I did other concerts in PP and it never did this. And as I mentioned, why can I still watch the clip perfectly in synch in QT? Sounds like a FCP problem, not an XL2 problem. Any true solutions out there? At this point I refuse to adjust the length of the video to match the audio. Thanks. Alfred

February 19th, 2008, 04:15 PM	#2
Mike Barber Major Player Join Date: May 2006 Location: Toronto ON Canada Posts: 731	Is your footage in 24 or 30fps? I can't recall if the XL2 did 24fps or not. I have had issues of sound sync in FCP (but not in QTP) when I had 24pA footage on a 30fps timeline... even after changing the timeline to 24fps the issue remained because you have to make those changes before you insert the clips onto the timeline. __________________ Mike Barber "I'm laughing to stop myself from screaming."

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February 20th, 2008, 06:50 PM	#3
Alfred Diaz Regular Crew Join Date: Mar 2006 Location: Washington State Posts: 88	It is 24p. But I did all of the above mentioned. Still, I will set the sequence settings and place the clip again. Just to make sure. I know I had the setting right while capturing, but I can do that again, though I don't want to. Al