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Settings for exporting media: 23.976fps vs 25fps
Hello,
I have a 2-min video sequence in Premiere Pro CC which is mostly comprised of 23.976 fps video shot on Canon DSLRs, timelapse footage put together using LRTimelapse and some 50fps / 60fps aerial video footage from a DJI Inspire 1 quadcopter that I pulled down to 24fps in Premiere.
I am rendering at Maximum Depth and using the Maximum Render Quality.
My “Format” for export is H.264, but I’ve been playing around with different Presets, with the below results:
a) HD 1080p 23.976fps: some of the aerial footage is visibly jerky;
b) HD 1080p 25fps: whole video is smooth;
c) Match Source – High bitrate: within the “Video” sub-menu, 25fps has been automatically selected by Premiere as the Frame Rate. Video is smooth;
So I guess my question is as follows: if the majority of my source footage was 23.976fps (and I’ve kept that frame rate the same), why does exporting with that exact frame rate not give me the best end result? The exported .mp4 file appears smoother to me at 25fps than it does at 23.976fps – colour me confused 🙂
Cheers,
Patrick
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4 Replies
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It’s quite weird… Did you look at how your 23.976 footage appear in the source monitor? Is it smooth? Are you sure you edited a 23.976 timeline? If you export “same as source” it should be 23.976, not 25…
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Did you experiment with shutter corrections?
https://helpx.adobe.com/premiere-pro/using/rolling-shutter-repair.html
Here is something relevant about frame blending. A sort of frame by frame transition to make the flicker less noticable.
https://help.adobe.com/en_US/AfterEffects/9.0/WS3878526689cb91655866c1103906c6dea-7d43a.html
Also have you deinterlaced all footage or checked it for type?
Adrian D\’Alessio aka; Fluxstringer
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Ciao Pierpaolo!
Ne sono d’accordo, ma sono anche sicuro che la grande maggioranza della mia sequenza e’ composta di filmato a o 23.976 fps (creato con una fotocamera Canon) o 24.00 fps (esportato usando LRTimelapse)
Il filmato a 23.976 fps ed a 24.00 fps va benissimo su entrambi i monitor Source e Program in Premiere, nessun problema visible
Rimango confuso della scelta di 25 fps da parte del software quando va scelta l’opzione Preset “Match Source – High bitrate”
Ti ringrazio,
Patrick
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Adrian
Many thanks for the links, I will check those out
I have neither de-interlaced, nor checked for type, but I will add those two things to my long list of things to learn 🙂
Cheers,
Patrick
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