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5D 24p and Zoom audio drifting in Final Cut Pro

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Ryan Downer
5D 24p and Zoom audio drifting in Final Cut Pro
on May 14, 2010 at 9:59:47 pm

Alright so I thought this issue was fixed, so maybe this is just user error?

Shot 1080 24p (23.98) on a 5D Mk II and recorded 48kHz 24 bit. Got it into a timeline in Final Cut Pro with these settings: Apple ProRes HQ, 23.98, 48kHz/24bit.

For some reason I'm getting drift at around 2 minutes in. I can fix it by shifting my zoom audio to the left. I also put this footage into a 24p timeline and nothing changed. Thanks for your help!


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Noah Kadner
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 14, 2010 at 11:04:08 pm

Yeah it's potentially unavoidable as you've got two audio sources with no crystal sync and no way to jam to each other. Just have to live with it on long takes or consider moving up to a more high-end audio recorder with timecode.

Noah

Check out my book: RED: The Ultimate Guide to Using the Revolutionary Camera!
Unlock the secrets of 24p, HD and Final Cut Studio with Call Box Training. Featuring the Sony EX1 Guidebook, Panasonic HVX200, Canon EOS 5D Mark II and Canon 7D.
Watch Formosa- My indie movie shot with the SDX900 and finished with Final Cut Studio.


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Ryan Downer
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 14, 2010 at 11:09:31 pm

You mean that's the way it is? I thought this was fixed with the 23.976 firmware update? What's the best production process for this set up?

Also, in post do I use a 24p timeline or a 23.98? Thanks.


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Michael Sacci
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 15, 2010 at 1:51:06 pm

You should almost never be using 24p for video, the camera is shooting 23.98.


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Noah Kadner
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 14, 2010 at 11:16:59 pm

the least expensive audio recorder I know of with SMPTE timecode is the Tascam HD P2:

http://www.amazon.com/gp/product/B000YZ3TK4?ie=UTF8&tag=cowcreative-20

Noah

Check out my book: RED: The Ultimate Guide to Using the Revolutionary Camera!
Unlock the secrets of 24p, HD and Final Cut Studio with Call Box Training. Featuring the Sony EX1 Guidebook, Panasonic HVX200, Canon EOS 5D Mark II and Canon 7D.
Watch Formosa- My indie movie shot with the SDX900 and finished with Final Cut Studio.


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cowcowcowcowcow
Ryan Downer
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 15, 2010 at 6:18:16 pm

FOUND AN ANSWER***
Found out something interesting about importing audio in Final Cut Pro that happens behind the scenes. You MUST have your easy setup set to your current framerate you want to use with your audio BEFORE importing your audio. FCP transcodes your audio to that framerate ON IMPORT!

I originally had mine set to 24p and then dragged my audio into my Bin. There was my problem. Later, I deleted my zoom audio, set my easy setup to 23.98 and reimported my audio. Wallah! Everything was in sync. Crazy weird issue, but that's how FCP does it.

Apple please give us that option on import of audio!! Thanks.


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James Basire
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on Feb 22, 2014 at 3:12:56 pm

Thanks for posting the answer! A much cheaper solution than going out & purchasing more expensive recording gear as recommended by others.


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Bouke Vahl
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on May 16, 2010 at 9:32:53 am

It will be cheaper in the near future.
I'm now building a software based BWF recorder.
Add a piece of hardware of your choice to a small laptop, and you're done.
A decent IO box (usb, 4 channels) is about 150 - 200 USD.
I'm assuming you bring a laptop in all cases to offload the stuff you shoot, and my software will be less than 50 bucks.

So you're done quite cheap, but of course a laptop and external box ain't the most practical for run and gun shooting, but that's not what these cameras are for anyways.



Bouke

http://www.videotoolshed.com/
smart tools for video pros


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Eric von Doymi
Re: 5D 24p and Zoom audio drifting in Final Cut Pro
on Jun 2, 2010 at 9:10:10 pm

Go to
http://www.sounddevices.com/download

grab a free copy of wave agent beta. Import your files.

Then you can edit the metadate to be any framerate you wish. Hit save. Reimport in FCP and bam!!!!

I just discovered this after a morning of tearing my eyes out.


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