FORUMS: list search recent posts

29.97 to 23.98

COW Forums : Apple Final Cut Pro Legacy

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Spencer Iervolino
29.97 to 23.98
on Mar 30, 2012 at 9:17:52 am

Hello there, thank you in advance for any feedback-

I have just received all of my raw footage to begin editing an hour-long multi-cam live show for a client, which will eventually go to broadcast, dvd and iTunes. Usually when I edit for this client, they shoot in 23.98. This project was shot in 29.97 1080i. When I edit in 29.97 I get mixed cadences, and I've been in this position before, iTunes QC will reject it no matter what if it's not 23.98 or 29.97 with a perfect 2:3:2:3 cadence.

What is my best option here, to convert all footage to 23.98 via compressor (best) before any editing? Then a final show at 23.98 can easily be converted to any delivery format. But 7 hours of footage might take just under 9 years to convert.

Hardware conversion? It might be in the budget but probably not.

Can I edit in 29.97 with mixed cadence and somehow convert just the final show when it's locked and eliminate mixed cadence?

Am I missing anything?


Thank you again for any advice.


Return to posts index

Dave LaRonde
Re: 29.97 to 23.98
on Mar 30, 2012 at 5:29:05 pm

[Spencer Iervolino] "What is my best option here, to convert all footage to 23.98 via compressor (best) before any editing? "

Sorry, but the answer to this question is "yes". There really isn't any way around it.

The reason is something you've already experienced: mixed cadences. Yes, your 1080i footage would look fine in a 29.97 timeline. But it is 99.99% guaranteed that upon conversion to 23.976, all -- or almost all -- the cuts would happen in the wrong spots, and it wouldn't pass anybody's QC.

Since you need progressive for delivery, you should start with progressive before the edit begins. This wasn't your mistake, it was someone else's. But you'll have to be the bearer of the bad news and the unusually-large fee for that mistake.

This particular topic of converting interlaced 29.97 (1080i) to 23.976 (aka 23.98) via Compressor has been covered before, and there are quality-preserving and time-saving steps you can take. I urge you to do a search on this forum to find them.

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


Return to posts index

Spencer Iervolino
Re: 29.97 to 23.98
on Mar 30, 2012 at 7:12:57 pm

Thanks for your response Dave, much appreciated. I'm informed enough to figure this out.


Return to posts index


Jesenko Fazlagic
Re: 29.97 to 23.98
on Mar 31, 2012 at 12:12:37 am

Being that your footage was shot at 29.97i (presumably PsF, really), why wouldn't it work for you to edit at that frame rate?
Native camera 29.97i has no cadence, and PsF is basically progressive frames, just split into fields.
Are you saying that iTunes will ONLY accept 29.97i if it's cross-converted with proper cadence from a 23.98p master?
Unless you need to mix the two frame rates, it seems to me you'd be just fine editing in 2997i.
Converting 7 hours of footage 30->24 is crazy...

//Jesenko


Return to posts index

Dave LaRonde
Re: 29.97 to 23.98
on Mar 31, 2012 at 4:44:38 pm

[Jesenko Fazlagic] "Converting 7 hours of footage 30->24 is crazy..."

Not unless you need progressive video for the web, which is precisely the problem here.

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


Return to posts index

John Heagy
Re: 29.97 to 23.98
on Mar 31, 2012 at 6:23:42 pm

[Spencer Iervolino] "This project was shot in 29.97 1080i. When I edit in 29.97 I get mixed cadences,"

You're sure this was shot 23.98p/29.97i in camera? You are seeing 3:2 in this footage? It's odd to shoot a live switched event in 24p/30i. If it is 30i native then you should edit in that format. If it is 24/30i then you will need to reverse telecine it to 24p.


Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2017 CreativeCOW.net All Rights Reserved
[TOP]