Steve Fishwick wrote:Mark, do you know if Avid still gets this wrong too?
I'm sorry, I haven't used a MediaComposer for over 10 years. And the departments who I support do not use Avid, so I'm a bit out of the loop there. I can ask when there's another trade show (IBC 2021??)
I moved out of operations and into development in 2010. I've been able to ensure all the video scaling from our department is accurate, and when I've seen mistakes elsewhere I've been able to nudge the right people to "have a word"
I know that about 5 years ago I had to complain about a supplier who was using Avid to create SD trails using HD assets - including channel logos. They had to be nudged to get the transform between SD and HD correct so that channel idents didn't move when mixing between their trails and local media.
I've looked back at some training manuals I wrote. In 2006 I wrote a manual for video editors using Avid MediaComposer, Quanel sQEdit, and Adobe Photoshop. That was all just SD working, but includes details of getting square pixel media - like user generated media, and graphics elements - into an SD environment. It includes all the numbers I've written about in this thread.
There were references to Avid's "CCIR, non-square" setting specifically understanding square pixel media
of 768x576 (4:3 square pixel SD), 788x576 (digital active line "4:3" square pixel SD), 1024x576 (16:9 square pixel SD) and 1050x576 (digital active line "16:9" square pixel SD) and Avid doing the right thing. So I would be surprised if Avid didn't have a setting somewhere to do the right thing with SD-HD transforms.