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Mixed frame rates / res in a project?
Just curious about a couple of things I have not found info on in the docs I can find online.
How does the current Premiere Pro CS5.5 handle mixed frame rates in a project? I.E. what happens if you need to mix 23.98 in a 59.94 timeline? Is there any provision for adding 3:2 pull down to 23.98 in a timeline?
Same basic question for frame size. What happens when you want to use HD in a SD project or vice versa? Do you have full control of size? Is it a forced render or is it real time play back.
Thanks for the info?
Jef
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8 Replies
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Actually I’ve just had this experince outputting 23.98 in a Matrox 59.97df timeline. The great news is that 3:2 pulldown is added automatically by the Matrox drivers to HD-SDI. There is a bit of glitch in CS5.5 where 23.98 is directly output as 29.97NDF. The workaround is to render out the 23.98 timeline to an intermediate code, import it, and interpret it as 24. Then when it’s dropped into a 59.97DF timeline it will play out at the right DF duration.
David
AllinOneFilms.com -
I was wondering about this as well,
coming from fcp and having the horrible pd –
hopefully pp does it better. -
Hi David,
I think you may have misunderstood my question.
I am wondering about a MIXED frame rate timeline. By that I mean a timeline with both 29.97 AND 23.976 fps material whose sequence frame rate is 29.97.
Thanks,
Jef
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It’s no problem mixing the 2 frame rates on one timeline. But you may find that you have to re-interpret the 23.98 material to 24 to get it running at drop frame durations.
David
AllinOneFilms.com -
Well I just played with this in Premeire from CS3. And putting 23.976 into a 29.97 timeline looked just like FCP – a repeated frame every 5th frame rather than a 3:2 pulldown.
I realize this is much older software than current.
Jef
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If you drop a 23.976 clip into any old 29.97 sequence, it will repeat frame 4 and 5. If you drop the same clip into a pre-made sequence with the word NTSC in it (like DV-NTSC), Premiere will automatically apply 3:2 pulldown with excellent results. You can modify the NTSC preset to match your HD specs, and the pull-down remains. I used this method to create a bunch of custom HD 30fps presets.
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Great trick Chris. Exactly what I was looking for.
Thanks!
Jef
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Chris – How do you modify the existing sequence with NTSC? I am trying but the frame size is locked and the pixel aspect ratio choice is only rectangle. thanks
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