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Mystery of stuttering frames after render?
Although my AE project is built entirely out of Illustrator and Photoshop assets, and and every composition uses the same standard DV settings, and the RAM preview can play the entire file perfectly clean and smooth, my renders always come out with a slight framerate stutter during different moments. Here’s a link to the video so you can understand what I’m looking at:
https://cardwelltest.com/moonfire-video/
Although this is an FLV, the appearance of dropped/stuttering frames from time to time is visible in every type of file I’m exporting. Any tips on how to solve this problem?
Here’s the information about my project settings: NTSC DV | 720×480 | D1/DV NTSC (0.91) | 29.97 fps
(there are quite a few comps within comps that all share these same project settings, if that amounts to anything) -
20 Replies
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Are you exporting using interlaced settings? If so, is the field dominance set to upper or lower?
KennethGreen.net
Redefining Fine Art to Fine Wine. -
I currently was not, should I be?
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No, you shouldn’t have to export interlaced. BUT, try to export in interlaced mode and tell us if this still happens.
Also you can try this: if you have Premiere, import your AE project into Premiere and try exporting it there.
KennethGreen.net
Redefining Fine Art to Fine Wine. -
Rendering with lowerfields still gave the same stuttering problem, and I’m currently trying to export from Premiere.
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Premiere Pro’s exported version still has the jittery look at the same sort of moments, and included interlacing. Any ideas what it will take to remove the jittery stuff? Thanks for your time…
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If you step through the export frame-by-frame, is there a pattern to the stuttering? Like every fourth frame repeated, or once every second? (It’s hard for me to tell looking at the web movie on this side.)
“THE LOST SKELETON OF CADAVRA” –
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There doesn’t appear to be, no. I’m not seeing anything in the frame-by-frame that would be throwing it off. I think my next step is to burn it on a DVD and watch how it plays back on a television.
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I would also like to add that if I put the exported file into iTunes and have it converted to a different format, such as iPhone or AppleTV versions, it also carries the stuttering with it. Which is a reason why I believe it is embedded in the file, although going through frame-by-frame doesn’t show any signs of it….
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Now then I’m stumped, if the stuttering is only on playback no matter how encoded, but frame-by-frame movement smooth. I’d almost have to look at a Quicktime clip to give my .02 (flash is too uncontrollable). Anyway, I’ll keep a mind out for what this might be! Cheers…
“THE LOST SKELETON OF CADAVRA” –
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A recent development that’s most curious to me is when I tried pre-rendering the project. The Pre-render appeared on my desktop (as expected) as well as in my library (also expected). The stuttering is still obvious when I play the file on my desktop through Quicktime – but completely smooth within After Effects when simply previewing that same file from my library.
VLC, iTunes, etc all play it with inconsistent stuttering, and iTunes and YouTube both keep the stuttering when converting it for its own purposes, but somehow After Effects is able to play it flawlessly when its inside the program. As soon as it leaves the doors it seems to go bonkers.
Very odd, and thanks for keeping it in your thoughts, by the way.
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