Beginner question at DVinfo.net

Steven Hoffman · November 8th, 2006, 12:12 PM

Problem, shots seem out of proportion

Im filming in High Def, 1080i, 16:9 perspective.

I run the MXF files through the DVCPRO HD Converter program so its useable as AVI in premiere

I create a STANDARD NTSC project, so non-high def, non wide screen.

I import the wide screen high def video.

The video is still in 16:9 format in appearance, and it goes outside the frame on the sides. I move the video so the desired portion is on screen, and assume it will be fine. However, it comes out looking slightly out of proportion.

Any ideas as to what I did wrong?

K. Tessman · November 8th, 2006, 02:39 PM

Sounds like possibly a pixel aspect ratio issue. Note that NTSC DV is 0.9 (non-square pixels). I'm not sure about your source footage or what the output from the conversion is, but it's worth checking.

Cal Johnson · November 8th, 2006, 03:04 PM

Yeah, I'm not too sure what the issue is, but I was also going to suggest looking at the pixel aspect ratio. If you have a program like After Effects, you could always composite your footage there first, and then import it into your Premiere project in the format you need. A quick, dirty fix, would be just to drag the handles of the clip in the Program Sequence window in Premiere until the footage looks normal. Not an ideal solution by any stretch of the imagination, I know.

Steven Hoffman · November 9th, 2006, 10:11 AM

Im just getting started with everything, so im pretty clueless about a lot...

High Def, 1080i 16:9 Video has a pixel aspect ratio of 1.333

Where as NTSC Standard has a pixel aspect ratio of .9

Is there any way to convert pixel aspect ratio without horribly skewing the video?

Cal Johnson · November 9th, 2006, 10:27 AM

Do you have After Effects?

Steven Hoffman · November 9th, 2006, 11:21 AM

Yes, but im not particularly good at it.

K. Tessman · November 9th, 2006, 12:19 PM

In Premiere, if you right-click the footage clip in the bin, you can choose to interpret it with an arbitrary pixel aspect ratio.

Steven Hoffman · November 9th, 2006, 12:38 PM

okay, its working, at least alot better than it was..

Thanks for your help and patience.

-Steve

Jon Jaschob · November 9th, 2006, 02:07 PM

You may not be interested in this solution but....
Why not capture/edit in HD then export to your desired format?
I use the Aspect HD and PPro2 on a 4 year old P4 system, works fine.
Jon

Steven Hoffman · November 9th, 2006, 04:04 PM

Thanks Jon,

Im gonna have to experiment quite a bit before its perfect, but another thing to try, even if it doesn't help me immediately, may be just what I need down the road.

November 8th, 2006, 12:12 PM	#1
Steven Hoffman Regular Crew Join Date: Oct 2006 Location: Buffalo, New York Posts: 51	Beginner question Problem, shots seem out of proportion Im filming in High Def, 1080i, 16:9 perspective. I run the MXF files through the DVCPRO HD Converter program so its useable as AVI in premiere I create a STANDARD NTSC project, so non-high def, non wide screen. I import the wide screen high def video. The video is still in 16:9 format in appearance, and it goes outside the frame on the sides. I move the video so the desired portion is on screen, and assume it will be fine. However, it comes out looking slightly out of proportion. Any ideas as to what I did wrong?

November 9th, 2006, 10:11 AM	#4
Steven Hoffman Regular Crew Join Date: Oct 2006 Location: Buffalo, New York Posts: 51	Thanks Im just getting started with everything, so im pretty clueless about a lot... High Def, 1080i 16:9 Video has a pixel aspect ratio of 1.333 Where as NTSC Standard has a pixel aspect ratio of .9 Is there any way to convert pixel aspect ratio without horribly skewing the video?

November 9th, 2006, 12:38 PM	#8
Steven Hoffman Regular Crew Join Date: Oct 2006 Location: Buffalo, New York Posts: 51	Thanks again okay, its working, at least alot better than it was.. Thanks for your help and patience. -Steve

November 8th, 2006, 02:39 PM	#2
K. Tessman Regular Crew Join Date: Jun 2005 Posts: 66	Sounds like possibly a pixel aspect ratio issue. Note that NTSC DV is 0.9 (non-square pixels). I'm not sure about your source footage or what the output from the conversion is, but it's worth checking.

November 8th, 2006, 03:04 PM	#3
Cal Johnson Major Player Join Date: Oct 2004 Posts: 180	Yeah, I'm not too sure what the issue is, but I was also going to suggest looking at the pixel aspect ratio. If you have a program like After Effects, you could always composite your footage there first, and then import it into your Premiere project in the format you need. A quick, dirty fix, would be just to drag the handles of the clip in the Program Sequence window in Premiere until the footage looks normal. Not an ideal solution by any stretch of the imagination, I know.

November 9th, 2006, 10:27 AM	#5
Cal Johnson Major Player Join Date: Oct 2004 Posts: 180	Do you have After Effects?

November 9th, 2006, 11:21 AM	#6
Steven Hoffman Regular Crew Join Date: Oct 2006 Location: Buffalo, New York Posts: 51	Yes, but im not particularly good at it.

November 9th, 2006, 12:19 PM	#7
K. Tessman Regular Crew Join Date: Jun 2005 Posts: 66	In Premiere, if you right-click the footage clip in the bin, you can choose to interpret it with an arbitrary pixel aspect ratio.

November 9th, 2006, 02:07 PM	#9
Jon Jaschob Major Player Join Date: Oct 2005 Posts: 232	You may not be interested in this solution but.... Why not capture/edit in HD then export to your desired format? I use the Aspect HD and PPro2 on a 4 year old P4 system, works fine. Jon

November 9th, 2006, 04:04 PM	#10
Steven Hoffman Regular Crew Join Date: Oct 2006 Location: Buffalo, New York Posts: 51	Thanks Jon, Im gonna have to experiment quite a bit before its perfect, but another thing to try, even if it doesn't help me immediately, may be just what I need down the road.