Discussion:
16:9 frame aspect ratio with D1/DV NTSC Widescreen (1.2) pixel aspect ratio?
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b***@adobeforums.com
2006-07-11 18:02:02 UTC
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In AE 6.5, how can you set a frame aspect ratio of 16:9 with the D1/DV NTSC Widescreen pixel aspect ratio preset (720 X 480)? It does not give you the option of setting a frame aspect ratio. With the described preset from above, AE sets the frame aspect ratio to be 9:5. What am I doing wrong? The setting I want is a preset in Premiere: DV-NTSC Widescreen 48kHz, so why isn't it available for AE? All I want is to take the AVI I will create from AE and put it into the video I have created in Premiere. This should be simple, what am I overlooking?
T***@adobeforums.com
2006-07-11 18:20:24 UTC
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Use the NTSC DV Widescreen preset in After Effects, which matches the setting from Premiere. Don't worry about the frame aspect ratio, it's correct.

(The frame aspect ratio of NTSC widescreen is actually 1.8:1, or 9:5, close to but not exactly 16:9. That's normal, as NTSC DV standards are a little weird. For example, NTSC standard is 27:20, not 4:3.)

All that is important is that you use the correct pixel dimensions and pixel aspect ratio. In this case, 720x480 and 1.2 PAR, which is the standard for NTSC widescreen.
J***@adobeforums.com
2006-07-18 17:16:06 UTC
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Hello,

I don't believe this is true. After Effects says it's only a 9:5 ratio. So when I choose Widescreen 1.2 in After Effects, then take that into Premiere Widescreen 1.2 16:9, my ratio is NOT the same. It distorts all movies, text and pictures.

I'm looking for someone who knows how I can take a widescreen render from After Effects and able to burn the movie to DVD without all the distortion I'm getting :O(

Jay
R***@adobeforums.com
2006-07-19 12:25:27 UTC
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When you use the presets there is no distortion. DV Widescreen has 480 lines while NTSC has 486. DV just throws away the top 2 and the bottom 4 lines. This is why the screen ratio is reported as 9:5

Don't worry about this... you're still getting 16:9 ratio, you're just missing 6 scan lines, but that's OK because they are never seen.

The way to check for any screen ratio is to create a circular object an the comp window then rotate it. If it doesn't wobble when rotated then it isn't distorted, even if it looks like an egg. It shouldn't look like an egg on a TV, but it will on your computer unless you have activated pixel aspect ratio correction.

Jay,
Use the presets, make sure your Premiere settings are the correct and that the footage you render in After Effects is properly interpreted in Premiere, and your distortion will go away. Hundreds of thousands of people do this every day.
J***@adobeforums.com
2006-07-20 16:07:59 UTC
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Thanks for the reply :O)

I must be doing something wrong so I'll double check my work.

In After Effects 6.5, I'm using the preset for NTSC Widescreen (1.2) and then I render to uncompressed .avi. I then take that into Premiere 1.5 and also use the NTSC Widescreen (1.2) preset. But when I hit play when the video is brought it, you can even see the stretching in the preview window, even before I burn it to DVD :O(.

So, obviously, I don't know what's going on. heh.

Jay

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