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“Jumpy” picture
I give up.
I edit on Media 100, and a I have a few clips that I need to utilize in AE. I am an AE novice, but know enough to get the clip in there and add the stuff that I need. The problem comes when I “make movie”.
The quality of the resulting video looks good, but every few seconds, the video will “twitch” — it looks like the image quickly jumps to the right. It happens at random intervals, and only lasts a split second. I’ve tried making changes to the frame rate (30 vs. 29.97) and nothing seems to solve it completely.
Should frame rates be at 30 or 29.97?? Should field order be top or bottom? Does the problem lie elsewhere?
I’m at my wits end. I don’t know if this can even be addressed here without having more info.
Thanks!
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6 Replies
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The frame rate should be the same as your video. If it’s for broadcast/tape/DVD, it should be 29.97.
I believe that if your Media 100 is 640×480 (older), then you should be rendering upper field first. If it is 720×486 (or DV), you should be rendering lower field first. If Media 100 uses “odd” or “even”, you’ll have to do a test. I can’t remember if odd is upper or whatever.It doesn’t sound as if field order (not dominance!) is your problem. If it were reversed, your video would jerk back and forth on every frame where there is motion.
Your comps should be 29.97.
Render at 29.97 with no fields. Test on a broacast monitor.
Render at 29.97 upper first. Test on a broacast monitor.
If you still have issues, find the frames where it happens. Go back to the comp and find those frames. Select all layers and hit U to reveal keyframes. Look for keyframes at those points. You may have unexpected keyframes there.Let us know.
Anybody else?
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If your footage is 720×486 then you should be rendering at lower field first. Make sure your footage is also interpreted correctly in your project window. Select footage in project window and go to file interpret footage and make sure fields are set to lower as well. Frame rate should be 29.97 and non-square pixels. Use the Comp presets from the new comp window drop down menu and they should set you up pretty well. It sounds like your having either a field issue or you may be rendering out a 720×480 comp and then importing into Media 100 which needs 720×486. (I’m assuming your working at 720×486)
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did you check the info on your clip inthe project window? are you using the render queue? YOu should see both frame rate and field order in the project window and they should match in the render settings. if the clip is not separating fields by it’s self then you should figure out the field order and fix the interpretation. (file-interpret-main)
The output module should be set to the media 100 codec that matches the one you used to capture or a losless one like animation.
if you drag a clip to the new composition icon at the bottom of the project window you will get a perfectly setup composition.
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I agree with Sam; don’t use Make Movie, use the Render Queue.
– The Great Szalam
(The ‘Great’ stands for ‘Not So Great)No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.
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When you wrote “don’t use Make Movie“, did you mean “don’t use export” or “use composition>add to render queue“?
Steve 🙂
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Ahem, er, yes.
– The Great Szalam
(The ‘Great’ stands for ‘Not So Great)No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.
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