View Full Version : convert from 24 to 30 fps?

04 April 2002, 05:49 AM
anyone know how to do this in premiere, combustion, or afterfx? I've got a scene rendered out in pics at 24 fps, but would like to re-render it at 30 fps, while maintaining the same speed. Is this possible, or do I need to re-scale my animation and re-render?

04 April 2002, 10:03 AM
well, the simplest way to do it is by doing a 3-2 pull-down.

in this process, every 4th frame is printed twice, but to mask this effect of blatantly duplicate frames, a process called field integration is used. if it's possible, the 3-2 process can take one field from the 4th frame, and the opposite field from the next frame, and make the extra in-between frame instead of making a direct copy. it makes it much smoother.

i'm not sure how to do this yet in premiere. i haven't had to deal with 24 fps before, yet. everything's been for video. but, i'll open up premiere and look around a bit. if i find anything i'll post again.

04 April 2002, 10:34 AM
Thanks very much Lyon; appreciate the info thus far. I'll look into it myself too.

04 April 2002, 10:50 AM
maybe it's not that simple.

well, all i can suggest until i can ask the digitial video instructor here is to search for how to create a 3-2 pulldown and see what you find. but it may be better to adjust your timeline and rerender at 30fps.

why did you animate/render in 24fps?

04 April 2002, 01:04 PM
Why? Because it was what I was used to/trained to do. :) On my school's equipment, we could animate/render at 24, and use a seperate piece of software to do a film speed/30 fps conversion that worked flawlessly. Oh well..

04 April 2002, 02:20 AM
In premier if your Project settings are the correct frame rate for your images (24) then when you export select the new frame rate (30) I think that will do it.

04 April 2002, 01:59 AM
by gum I think you may be right squash. I'll give it a try

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