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Frustrating Screen Ratios – Need 720×480
Hello,
Using Vegas 11 Platinum.
Set up Project as 720×480 NTSC; Preview 720x480x32; Video as-shot is 640×424. All these are at 1.5 ratio.
But “Display” is at 1.36XX ratio, no matter what measured size it is, and further the rendered video output comes out in 1.36XX ratio.
(The “Display Adapter” indicates a 1366×768=1.778 ratio)
Using the as-shot (1.5 ratio) video, I am forced to “fill” with black the top and bottom of the picture, which is undesirable.
I want the rendered output to be the standard 720×480 (or 1.5) ratio, and also the “Display” that I am working with to be the standard 720×480 (1.5) ratio, not this strange 1.36xxx ratio.
What am I doing wrong, and how can I fix it?
thank you
John -
5 Replies
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Not sure where you are getting this 1.5 ratio but that’s not “standard” for anything.
NTSC 720-480 will be .909 for standard or 1.21 for widescreen.
Where are you getting the original files from?
With a mess like this I would have the project at 720 x 480 1.21 PAR and crop every file to “match output ratio”
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Sorry, I did not explain very well. The ratio of width to height of a picture is what I meant. 720 divided by 480 = 1.5
I get the original at 640×424, which can then properly fill the screen because it is the same ratio as 720×480. No problem there.
But… the Display above the timeline is taller than the standard ratio, i.e. it is not “720×480” even though the program is set up for this figure. It is 1.36, for example 741×543, or 515×378, or 756×553, all the same, strange 1.36 ratio.
This leaves letterboxing at top and bottom. You can’t stretch to fit, because it distorts faces. The output is also at this strange width-to-height ratio.
Something is wrong with the program?: I set it for “720×480” NTSC yet it works at an equivalent (keeping the 720 figure) at 720×527. It’s too tall!
I can’t figure out what I’m doing wrong.
Thank you,
JohnJohn23GR
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[John Gregoriades] “The ratio of width to height of a picture is what I meant. 720 divided by 480 = 1.5”
That would only be true if the pixels were square but as Joe pointed out, they are not. Standard Definition NTSC pixels are 0.9091 in width (NTSC DV). So you must multiply 720 x 0.9091 and get 654.552. In reality, what you perceive to be 720×480 is really 655×480 which is 1.3645 ratio.
What camera produced 640×424? This is a non standard format and there is no way to fit it into any broadcast standard format without cropping or letterboxing.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
That would only be true if the pixels were square but as Joe pointed out, they are not. Standard Definition NTSC pixels are 0.9091 in width (NTSC DV). So you must multiply 720 x 0.9091 and get 654.552. In reality, what you perceive to be 720×480 is really 655×480 which is 1.3645 ratio.
Aha, I was not aware of this, and now I understand! However, it does not “solve” my problem of the needed letterboxing. Is there a way adjust the Vegas settings to avoid this?What camera produced 640×424? This is a non standard format and there is no way to fit it into any broadcast standard format without cropping or letterboxing.
This is a Nikon DSLR D5100, which (according to its manual) produces three sizes of video: 1920×1080, 1280×720, and 640×424, stated as “frame size in pixels.”John23GR
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At least in the future use the 1280×720 as that will produce real 16×9 widescreen format for use in any output resolution you will require.
What is the destination for these files once completed and we can give you the best option of what can be done. You may get lucky and this “border” will be out of the scan area on a TV. If it is going on YouTube or the like you will have to bite the bullet and make a call.
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