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high speed filter causes field problems
hi!
I am editing some HDV PAL material, 1080i in Premiere Pro CS3.
When I add a speed effect, with the basic speed tool (not time remapping), usually a 800% or 600% effect (very high speed) some clips play jerky.
I activate the frame blending checkbox. The strangest thing is that some clips play awesome and some others (taken by the same camera, and played at the same 800% speed) play jerky, as having the fields order inverted. (Only where the speed effect is applied.)
Of course, i´ve tried the reverse field dominance option, as wel as the deinterlace or flicker removal, with no luck.
Any ideas?
Thanks in advance,Xabier
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4 Replies
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It could be the disk (high speed requires higher disk performance) or the CPU (decoding the HDV long GOP frame structure at high speeds). I would try forcing a render, or exporting the original clip to a non-long GOP format and speeding that up.
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Thanks for your answer, Eric.
Unfortunately, the problem appears in the rendered clips. Also exporting to DV, to DVD, etc.
Xabier
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Could you post the clip somewhere so we can see the jerky look?
If you are just speed/duration alting upto 800, have you tried to use the timeremapping to do it? That should look much better.
– Jon 🙂How many editors does it take to change a light bulb?
http://www.jonbarrie.net -
Thanks for your answer, Jon.
The jerky look appears only on a TV monitor, not in computer screen.
Even if I upload the clip you wont see the jerky effect.I´ll try Time remapping instead of regular speed up. Thanks for the tip. I´ll report the results.
Xabier
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