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Adobe Premiere CS4 QUALITY LOSS… please reply if you know about video editing quality loss ;)
i did a Video Tutorial Screen Capture…
(the raw footage looks good on a 32 inch plasma TV hooked up to my laptop)==========
Raw footage information:
Image Size: 840 x 478
Pixel Depth: 32
Frame Rate: 30.00
Average Data Rate: 298 KB / second
Pixel Aspect Ratio: 1.0116
==========I imported the footage to Premiere CS4, and added a few layers,, (Logo, titles, etc)
..then I Exported using Adobe Media Encoder. (i have tried almost all the options, and for some reason there is still a definite quality loss from the original Raw footage).
the best export quality I found was using H.264 on its Widescreen DV setting… (though its still about 20% less quality than my original footage). it just seems a tad blury and not as sharp.
– on the original Raw footage, I can read the text and see the mouse-motion perfectly, but something is happening in premiere that is losing essential quality)
its for a presentation, so I need it to be as good as the Raw captured footage
i will be showing the final movie using my laptop, hooked up to the plasma TV.
any suggestions what I can export as? or is there something I have to do to my footage to stop it loosing quality? (i tried permutations of interlace,de-interlace-progressive, single & double VBR pass), nothing seems to solve it!!)
any comments are really welcome,
Marc
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2 Replies
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I would use an Mpeg2 before the H264. Your file size will be smaller with the H264 but unless you crank up all the other settings you will have the quality loss that you explained.
Try an Mpeg2, you can type in those pixel dimentons if they are not already in a preset, and remember 30 FPS is actually 29.97 on export.
I never shoot with those dimentions but if it is a widescreen frame size then you will of course have to click the widescreen option.
I also always capture and export as “progressive” you might try one version of that as well.
How long is this video? plus if it’s going onto a dvd you might as well just export it as standard definition settings.
If it’s really short in length then I would export as an AVI with no real quality loss.
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If you want the export to remain as sharp as the original then you will need to export with at least the same frame dimensions (which don’t conform to any TV standard). DV will conform SD TV standards which is either 720×480 (NTSC) or 720×576 (PAL). Both are smaller than the original dimensions of your recording, which will result in downscaling and merging of pixels which can have a softened look.
What are you hoping to use the final product for? TV, DVD, Web?
Upscaling to fit to HD 1280×720 will also make a stretching of the original pixel frame dimensions which again will cause some softening.
The other problem with using a DV preset is that it is not square pixel as any screen recording would be. DV uses anamorphic pixel aspect ratio (PAR) to stretch a 4:3 image out to 16:9 as this is the process 16:9 SDTVs used. HD is square and so is the web.
One option could be to forfeit some of the outer edges of the recording to maintain the pixel for pixel (100%) sharpness in a 16:9 square pixel sequence and export as such. For NTSC SD you will need to make a Custom Seq that holds the dimensions of 864×486.
Any up or down scaling from that will be miles better than working in a DV widescreen (anamorphic) sequence.
Hope this helps 🙂
– Jon Barrie
Jon Barrie
aJBprods
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