Exporting DV Project – Vertical Lines

[Joshua Moise]

Thanks. I looked at the project at half resolution and it appears that the vertical lines are coming from the source clip which, as I said, was exported out of Avid Xpress DV as a quicktime (DV/NTSC, interlaced, 16:9). I’ll head to the Avid forum for further help.

Thanks a lot.

[Kevin Camp]

you might try exporting out of avid as a quicktime using the lossless animation codec… exporting to dv is recompressing the dv footage you edited. if the lines you are seeing are fairly subtle, they may be due to compression.

just to ask… are you seeing these lines in a broadcast monitor or your computer screen, and are you only seeing these in ae, or do you also see them on the ae rendered footage when it comes back in to avid? i’m wondering if you’re seeing the pixel aspect correction in ae’s preview window, which would look sort of like vertical ‘aliasing skips’ in the image. in a broadcast monitor (with 16×9 setting) or back in avid it would look normal.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW

[Joshua Moise]

Thanks for the reply. I’ll bring the file back into Avid and see what happens. I’m seeing the lines on the computer screen as I do not have a broadcast monitor. I saw the lines when I blew up the source quicktime file that I exported from Avid Xpress DV. I tried exporting it with the animation codec, but when I did so, the file looked blown out and didn’t have the same look as it did in Avid. A bit confusing indeed.

[Kevin Camp]

the blown out look of the exported qt animation file may be due the yuv-rgb conversion (or lack of conversion)… when you export out of avid, i believe you should be able to select a conversion from 601 (yuv) to rgb… and, like wise, when you import back into avid there should be an option to convert from rgb source footage.

Kevin Camp
Designer – KCPQ, KMYQ & KRCW