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Here’s a baffler…
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[Lee Berger] “Have you tried recapturing the media to see if the problem happened during the capture?”
I considered doing that Lee, but since I don’t know which of the two cameras is the culprit, it meant possibly recapturing both. So, I decided to forge on with the edit, resyncing the multicam everytime things drifted. Probably a mistake on my part cuz it was taking forever. I’m trying a recapture now.
THNX,
DavidDavid Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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[Matte] “Global Warming.”
Damn, I knew I should have called in Al Gore intead of William Shatner. Shatner was no help at all.
David Roth Weiss
Director/Editor
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY™
A forum host of Creative COW’s Business & Marketing, and Indie Film & Documentary forums.
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David…two things…
Are you sure the tapes were recorded at 48k? If you capture 32k audio using the 48k preset, you may have sync issues.
Also…if you have a capture card with analog audio inputs, try capturing analog audio instead. Whatever sampling rate voodoo is going on should be eliminated that way.
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Ok, So after reading this entire thing, I’ve come to offer a solution.
You’r all F’n Crazy. The audio is probably fine. Take a break from work. Check it when you’ve slept a decent amount (as in not walking your dog at 1 am and waking up at 7)
Your audio should sync now.
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DR,
You get “The Longest Thread Without a Solution” award of the month. Sorry bro.
Personally, I would recapture.
Have a wonderful day.
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Could one of the cameras not been set to locked audio? Or possibly worse 32k?
Warren
Warren Eig
O 310-470-0905
C 310-560-6245email: warren@babyboompictures.com
website: https://www.babyboompictures.comhttps://www.atomfilms.com/af/content/knitwits
https://www.atomfilms.com/film/family_xmas.jsp -
I don’t know the QT internals as well as I did AVID, but I know that it was very possible to have some sync issues if you had some dropouts/error correction, difficulty etc during capture.
It had to do with the way avid calculated timecode– (I think it still works this way) It doesn’t lock the timecode to the media frame by frame, but grabs the starting timecode, and then simply offsets the current frame and voila, you get timecode from the current frame. When I was having cap & sync problems with Adrenaline 1.0, this was the problem.
I know QT supports timecode, but QT may internally be doing exactly the same thing– And streamclip wouldn’t have a problem if QT didn’t KNOW it was had ‘missing frames’ every so often.
You wouldn’t get “long frames” (I don’t think) if it was having issues with error correction (DV has robust error correction, obviously, and we rarely know it’s going on)
Whichever one is BEHIND is probably the tape (camera?) that is WORKING, as the other tape (camera?) might be generating corrupt frames that get dropped during error correction… Or FCP isn’t detecting long frames in this instance..
If you want to debug it more (after you finish) and your audio is very similiar on the cameras, you could try to find the place where it first starts running adrift by looking for the audio samples to diverge… (have no idea what your audio setup was…)
Just a guess..
Cory
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I have seen audio drift on DV capture before. If there is any drop in audio where there is no signal recorded to tape then the audio will drift in Final Cut. It usually has happened to me at either camera starts and stops or at the end of the tape. It only takes a frame or two. The audio is fine on the DV tape but Final Cut will drift sync on capture. If you capture in chunks without the bad frames everything will be in sync. i’ve also seen issues with worn heads causing sync drift but when its bad heads you hear audio distortion intermittently which you won’t if its signal loss.
Hope this helps.
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[David Roth Weiss] “. I think this will wind up being charity work at a time when I need the money. “
Maybe it’s time to add a caveat in your rate sheet for non genlocked camera edits.
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QuickTime works just like Avid in this regard
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