Low Quality when speed less than 100% on Matrox LE MAX

[ksduded]

I have a Matrox LE MAX with Adobe Premier 6.5

When I lower the speed of the clip to 50% etc. the frame starts to give a lot of flicker. The frame jumps up and down, which damages the overall feel of the clip.

I am using the M-JPEG compressor...

any reply will be very helpful

[jez666]

try using uncompressed

[Gavin Gration]

I wrote some tips a while ago for the Matrox RT2X00 cards but most of it applies to the DigiSuite.

http://www.zenvideo.co.uk/editing_tips.htm

Here's the bit about slo-mo.

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Smooth slow motion
Real time slow motion is possible with cards like the RT2000/2500 using Adobe Premiere. But the results are so jerky that they're useless. There have been a number of suggestions on how to improve the quality of slow motion video, such as offsetting a second duplicate layer of video by one frame with 50% transparency applied, or outputting a clip as a series of stills, then importing them as an image sequence and reducing the speed. By far the simplest method is as follows.

Right click on the clip you want to slow down - choose the desired speed (say 50%) then drag & drop the "Brightness" filter (from Video/Adjust/Brightness & Contrast) onto the clip. The result renders very quickly and gives very smooth slow motion.

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Hope this helps.

Gavin