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Exporting Quality Issue
Hello, I’m having trouble maintaining quality while exporting a video in Adobe Premiere Pro 2.0. Here’s what I got…
I copy my original AVI file from my ‘Canon Powershot SD800 IS’ onto my hard drive. The original looks good. I bring it into Premiere and deinterlace each clip and export to .WMV with the following settings:
640 x 480 (29.97 fps)
64 kbs, 48 KHz, stereo (a/v) CBR
Compressed, VBR, 2 Pass, Audiences 1, Avg Video BR 2,000 kbps
Pixel Aspect Ratio: Square Pixels (1.0)
Video Codec: Windows Media Video 9Here’s the export I got:
https://www.twisted-fate.com/clip01.wmvThe quality is rough – the carpet looks blurred and the lines on her sweatshirt look jagged as do her eyebrows. Does anyone know what I can do to improve the quality of this? Thanks in advance…
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11 Replies
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Well, of course, you don’t want to look at it full screen. Windows media usually does a terrible job at upscaling (version 11 does get a lot better)
There is still some scaling going on I think, however. You could try being picky and export at 648×480, since that’s the exact pixel ratio for 720×480 and see if there is some improvement. I can’t see the original footage so it’s hard to compare here.
In the end, I have a feeling that what you are really seeing is a a loss of resolution after Premiere has converted your interlaced footage to progressive (am I right here ?) I sure looks like a case of field interpolation.
Vince
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Oops, I also missed the fact that this was from a still camera, that would probably explain it too. I have the same (older) model. Good for still pictures, not really designed for use as descent camcorder. My previous recommendations do apply though.
Vince
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Vince, you also said “interlaced footage to progressive (am I right here ?) I sure looks like a case of field interpolation.”
I’m not sure, how can I check this? Could this also be a codec issue?
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If you are not using one of the two inexpensive Motion JPEG codecs, that could be one problem. The Motion JPEG codec is only around $20 at MainConcept or Morgan Multimedia
Another problem could be that your project is set up for DV AVI at 720X480 and you should be using a custom desktop project set for 640X480.
Steven
https://www.stevengotz.com -
Steven, the clip that is linked above was exported using the ‘Desktop 640×480’ setting
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The interpolation happens everytime you de-interlace with Premiere.
What you are basically doing is removing one field. And although it is a little more involved than that, you pretty much losing half the resolution. Premiere fills in the blanks, but you can see what that means here.
There are many ways to de-interlace, and many application handle these differently. Here’s a link if you want to dig in further.
Cheers,
Vince
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Damn, I’m really strapped for cash right now so I can’t try out that codec.
And Vince, I checked that link but that page on deinterlacing is soooooooo long I really didnt know where to look. I skimmed through it but can’t seem to find a good solution. I’ve used these same settings on some .MOD files that were ripped from an 8mm camcorder and they turned out great. Not sure what else to try but our site is launching in a couple weeks and I need to get this figured out or I’ll end up uploading some low-qualtiy vids.
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Sorry, I really don’t have any real answer here. Codec issues are one thing, de-interlacing is an additional loss in quality. You may find out that the smaller size makes those visible artifacts go away. Have you tried using the interlaced version?
My only advice would be to shoot progressive on future projects, but for these current videos you may be stuck with what you have on hand.
Vince
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Damn, I really don’t know enough about video to answer those questions.
One other question… is there a way to bring .MOD files into Premiere Pro? Says unsupported file type when I try now. Any tricks?
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