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Basic Export in AE CS3 gets stretched horizontally

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jojo galanBasic Export in AE CS3 gets stretched horizontally
by on Jun 6, 2010 at 6:39:52 pm

Hello,
Newbie here. HELP!
I have a panasonic dvx100b camera and am shooting Standard Definition 720 x 480. When I put a file in a DV Composition in After Effects CS3 and then export with no effects, my video is still 4:3 but it's stretched. Can someone please help?
Thank You.
jojo


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Steve RobertsRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 6, 2010 at 8:30:28 pm

It appears stretched in the computer. It would not be stretched on a TV. If you just want to play back on a computer, use a square-pixel comp preset.

Look up "non-square pixels" and "pixel aspect ratio" in the help.



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Shahin GhahremaniRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 6, 2010 at 8:49:05 pm

Hi Jojo,
OK, I think you set the footage aspect ratio to 4:3 but is the Pixel Aspect Ratio also set to SQUARE PIXEL or it is set to something else?
The footage ratio can be chosen or set on the format presets box from the export format settings, I think you should set it to NTSC DV 720x480, but make sure the pixel aspect ratio is also set to D1/DV NTSC (0.91) or if it didn't work set it to SQUARE PIXEL!
Hope this can help you.
Good luck.

Shahin

P.S. If you couldn't get the right result from the advice above, please provide some more information about the original footage ratio and pixel ratio and also your composition settings in reply! thank you.


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jojo galanRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 3:08:12 am

According to After effects The video has specs of:
720x480 (0.91) separating (lower)
23.976 fps 3:2 removal (http://WWWSW) - 24p Advance

What is the best timeline/composition to edit in?
I am currently using a DV Timeline 720 x 480 - 3:2

The 24P advanced video is at 0.91 but it seems like I have to use a square pixel aspect ration on the timeline for the video to look right. Is this correct?

Also, should I have the timeline at 23.976 or 29.97?
Pros and cons of either?

Why does the original video with an aspect ratio of 0.91 look fine, but when I export, it HAS to be 1.0 square pixel to look right on my computer monitor and HDMI TV?

Thank you for the help.


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jojo galanRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 3:10:38 am

Can a non-square 0.91 and a square 1.0 video be in the same composition timeline?


According to After effects The video has specs of:
720x480 (0.91) separating (lower)
23.976 fps 3:2 removal (http://WWWSW) - 24p Advance

What is the best timeline/composition to edit in?
I am currently using a DV Timeline 720 x 480 - 3:2

The 24P advanced video is at 0.91 but it seems like I have to use a square pixel aspect ration on the timeline for the video to look right. Is this correct?

Also, should I have the timeline at 23.976 or 29.97?
Pros and cons of either?

The output video seems to have interlace lines as well.

I tried a lot of different settings, read the dvx100 book by barry, and also read my manual for after effects, but still am a bit lost.
Please advise.

Thank You DVXuser community. You rock!


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Steve RobertsRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 4:28:21 pm

"Thank you DVXuser community"?

Busted for a cross-post! Bad internet etiquette to cross-post!



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jojo galanRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 5:04:05 pm

I am sorry.
DVX didn't respond so I posted here.
Thanks for the help.

I am using square pixel on export in After Effects. When I bring that square pixel video (1.0) into the original DV project (0.9) in premiere pro will it be fully compatible?

Thanks again!

Creative Cow is great!


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Dave LaRondeRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 5:17:23 pm

Adobe went to very great pains to make pixel aspect ratios easy to deal with in AE. I think they succeeded. I presume you're in NTSC-Land.

For 16x9 DV, you use a DV Widescreen comp preset.
For 4x3 DV, you use the NTSC DV comnp preset.

For compositional purposes, you use the pixel aspect ratio compensation toggle switch in the comp window. Don't worry how it looks, everything renders nice 'n smooth.

And then you render.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Steve RobertsRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 5:45:50 pm

Yes. You should not use DV square pixel when going back to Premiere or any other video editing app, in general.

Just use one of the presets Dave mentioned.



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jojo galanRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 7, 2010 at 11:47:38 pm

Thanks Steve and Dave for having patience and taking time to help a newbie like me out.

I learned ALOT from this thread and now got it worked out lovely. I'll be editing tonight and tomorrow.

Is it bad etiquette to post a link to the video here when it's done? I thought it would be appropriate because I never would have been able to do it without your help.

You guys are co-producers.
Thanks buddies,
jojo


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Steve RobertsRe: Basic Export in AE CS3 gets stretched horizontally
by on Jun 8, 2010 at 2:04:47 pm

Not bad etiquette. It's quite all right.

... depending on the video, of course. :-)



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