Best way to combine HD and SD footage?

[Jeremy Garchow]

I am confused. You say you have a 720p sequence and you are bring in a 1440×960 clip?

Where does the HD to SD come in and what is 1440×960 (besides 2 times 720×480), do you mean 1440×1080? Is the 1440 clip anamorphic?

[Matthew Abourezk]

Hey Jeremy,

The graphics are created in After effects. They are rendered as quicktime animation files at 1440 x 960, square pixel.

The video footage is shot in HD at 720P.

The video footage needs to be composited over the graphics.

After editing, the whole thing will go to a SD DVD.

The question is, what is the best, most efficient Sequence settings to combine the graphics and HD footage?

I am experimenting and feel like this is really confusing. I am forced to change the aspect ratio of the video footage in order for the woman (host) to not look short and fat, but then I get stair-stepping on her.

Hulllllp?

Talkingbox Digital Media Group, Inc.
http://www.talkingboxdmg.com
(203) 327-6617

[Arnie Schlissel]

[Matthew Abourezk] “The graphics are created in After effects. They are rendered as quicktime animation files at 1440 x 960, square pixel.
“

Why 1440X960? That’s not a standard size for… well, for anything. Also the aspect ratio is off. It’s 1.5 instead of 1.78.

If you’re working at 720, your AE comp should be 1280X720, square pixels. You should render out of AE as either animation codec, if you need an alpha channel, or in your naitive codec if you don’t.

Arnie
Now in post: Peristroika, a film by Slava Tsukerman
https://www.arniepix.com/blog

[Don Greening]

[Arnie Schlissel] “Why 1440X960? That’s not a standard size for… well, for anything.”

Except that it’s exactly double the size of DV NTSC. Maybe the graphics were originally done in DV 25 using AE. Just a guess. I know that when I’m working with stills in a DV timeline and I want to put some moves on them I always make sure the stills are double the frame size of the codec.

– Don

[Matthew Abourezk]

Hi Arnie,

That is why they are double the DV size. I am flying things all over the place and I need to be able to zoom in on the graphics.

Talkingbox Digital Media Group, Inc.
http://www.talkingboxdmg.com
(203) 327-6617