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XDCAM HD422 files to Pro Res embedded timecode drift

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Jean Davis
XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 21, 2013 at 7:03:49 pm

Hello There -

I'm hoping someone might be able to steer me in the right direction here.

I received my files and they are in the XDCAM HD422 1080p24 codec. My mixer wants them in Pro Res.
I"ve tried exporting these files to Prores 422 a number of times and I keep getting the same timecode drift when comparing the two files in QT7 and comparing my TC burn in on the pro res file. The two pops and first frame of picture are spot on but shortly into the reel my XDCAM file will hang on a frame longer on the shot than the Pro Res version and by the end of the reel it's about a second difference. The clips are the same length though and when I bring them into final cut all matches up and looks well.

Any Ideas on the issue?

thanks in advance.


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Dave LaRonde
Re: XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 21, 2013 at 8:06:14 pm

Sounds like a frame rate mismatch. Double-check the frame rates of everything you mentioned, both sequences AND footage. Report back with any discrepancies and what's wrong with what.

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Jean Davis
Re: XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 21, 2013 at 8:12:37 pm

Thanks for replying Dave.
I double checked source files, exports, sequence settings, export settings, I've got everything at 23.98.

When I bring the Pro res export back into final cut and split screen it with the XDcam everything lines up perfectly, I'm wondering if it's a QT7 issues?


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Dave LaRonde
Re: XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 21, 2013 at 10:01:51 pm

It sure sounds like it.

Tell you what: Send the file but also send along the precise timing from FCP of what it SHOULD be. If it matches, you're good and you haven't lost any time.

Dave LaRonde
Former Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Rafael Amador
Re: XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 22, 2013 at 9:20:24 am

[Dave LaRonde] "Tell you what: Send the file but also send along the precise timing from FCP of what it SHOULD be. If it matches, you're good and you haven't lost any time."
As Dave says.
If they work OK in FC, don't worry about QT Player.
rafael


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Jeff Meyer
Re: XDCAM HD422 files to Pro Res embedded timecode drift
on Mar 22, 2013 at 2:20:53 am

This sounds like a task for the Media Manager to me. You converting externally?


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