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29.97 PROGRESSIVE to 23.98

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Frank Ruggiero
29.97 PROGRESSIVE to 23.98
on Jan 27, 2012 at 10:07:13 pm

Hi Experts.

I am trying to take a spot that is 1080p 29.97 and cpnvert it to 23.98. I have read numerous recipes to do this in After Effects. Does anybody know if the source footage must be interlaced? Can this be done with progressive footage natively in After Effects?

Any info would be great. Thank you.

Frank


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Darby Edelen
Re: 29.97 PROGRESSIVE to 23.98
on Jan 27, 2012 at 11:39:29 pm

You can do it with progressive footage. The resulting quality will depend largely on what method you use to change the frame rate. Re:Vision FX's Twixtor as well as The Foundry's Kronos are both top notch retiming plug-ins.

If you don't have access to those then you're stuck with frame blending or Timewarp.

I'll also mention that retiming techniques that use pixel motion vectors to generate frames can be either amazing or horrible depending on the amount and type of motion. For a 29.97 to 23.976 conversion I'd recommend comparing the results of a simple Frame Mix frame blending, or even no frame blending (every 5th frame is dropped... I often prefer this personally but your client may demand otherwise), to the more advanced pixel motion vector techniques (Timewarp, Twixtor & Kronos).

Darby Edelen


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Chris Wright
Re: 29.97 PROGRESSIVE to 23.98
on Jan 28, 2012 at 1:12:57 am

AE has kronos built in, renamed as timewarp.

1. optically retime(i made a quick example how to do it)
ae cs3 aep 1080p 29p to 23.976p
http://www.mediafire.com/?4gbid2d11877b1p

2. optically retime
apple's cinema tools set to best


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Frank Ruggiero
Re: 29.97 PROGRESSIVE to 23.98
on Jan 28, 2012 at 1:51:46 am

Thank you. Thank you. Thank you.
I'll test it out tomorrow.

Much thanks.
Frank


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Darby Edelen
Re: 29.97 PROGRESSIVE to 23.98
on Jan 28, 2012 at 7:08:19 am

[Chris Wright] " AE has kronos built in, renamed as timewarp."

My understanding is that Timewarp is a much older engine than the current version of Kronos.

Darby Edelen


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Chris Wright
Re: 29.97 PROGRESSIVE to 23.98
on Jan 28, 2012 at 11:02:48 am

from the trial, as far as I can remember, it added a little preset for different dv color types and gpu acceleration.


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