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Exporting and Aspect Ratios
Hey everyone,
So I created a sequence that has the settings of DVC PROHD 720p with a pixel aspect ratio of HD Anamorphic 1080 (1.333). When i add my footage to the timeline, it looks perfect. However i notice when i export the footage, my quicktime player (or any player) displays the footage as distorted. The width of the video is somewhat shrunk. The height is still fine. I’m guessing its something to do with the aspect ratio… However, when take the exported video, and import it to premiere pro, it looks fine again! Why is this happening? I read that this might be due to the device its played on. For example, a TV might properly display this, but on a computer, it wont??? Would I need to export it as a square pixel ratio. Personally I think all pixels should be square!
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6 Replies
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If you are exporting HD for a computer media player, make sure you set your export settings to 1280×720 or 1920×1080 square pixels.
For SD 16:9, you should use 854×480, again square pixels.
Vince Becquiot
Kaptis Studios
San Francisco – Bay Area -
Ok thanks. Although my footage resolution is 960 by 720. However for now, i just did standard 720 by 480 at square pixels. It seems still slightly squished, but much better than the other ones. My question though is why would it show properly in premiere and not on regular playback from a computer media player?
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The media player is assuming square pixels, it doesn’t know your video file is made using a non-square pixel aspect. So, we adjust the frame size to look proper with square pixels, problem solved.
Jeff Pulera
Safe Harbor Computers -
Your footage looks fine in the Sequence window, but actually some of it not showing. Click on the word Motion in the Effects controls and notice that the bounding box in the Sequence window is wider that the frame…720 square pixels is about 10% wider than 720 .89 PAR pixels.
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No it looks fine, even when i click on motion. The footage still fits fine. Although I noticed now even when export it which square pixel aspect ratio, its still slightly distorted.
So i exported it a DV1/DV NTSC (0.9091) aspect ratio and now the footage looks fine. However…. now you see black bars running along the top and bottom of the footage, like the height isnt tall enough to fit this ratio. What the heck! I should go back to web design!
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record something that is square with measurements on it (a5 paper with rules). check the raw captured file. measure it. do it 5 second clip for all your versions.
I have a similar issue with my Canon xl2.
if i export as DV widescreen PAR it is squished, and if I export with 1.0 PAR it has black bars (interestingly so does the raw captured file).
However at 1024×576 1.0 PAR it looks bang on. even if the raw file is 720×576, wish I knew what the PAR was on the raw file.sto pro veritate
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