Friday, August 17, 2012

[Avid-L2] Another minor bug combined with a feature request: SAFE ACTION AND SAFE TITLE WRONG

 

If you create a title in the Title Tool - which is supposed to be WYSIWYG - the grid or title safe is DIFFERENT than the same grid or title safe in the Avid application.

Do this:

Create a title with an x placed at the far Safe title corners, left, right, top and bottom. Save it. Cut it into a sequence. Turn on the "grid" or safe title generator on the sequence. The xs are not in the safe title corners.

Which leads to my feature request that Avid CHANGE the default safe title and safe action grids. I am GUESSING that they are based on the same math that was used to create NTSC standard def safe title and safe action grids, which is to say 720 x 486 x .9 equals safe title and 720x 486 x.8 equals safe title.

In HD, I believe that the industry standard is no longer to reserve 80% of the raster for safe title, but that something closer to 3-5% is safe action and 8-10% is safe title.

In other words, safe title should probably be where the current safe ACTION is. I reserve the right to be wrong on my feature request, but the bug stands--- at least on my 6.0.0 system.

Discovery Channel specs say that 16:9 should be protected for 14:9 viewing, which would obviously alter horizontal safe action and title. The same docs only define title safe on 4:3 images (80% of raster, as I mentioned). The latest PBS TOS document states 1080i safe action as 1786 x 1004 and safe title as 1728 x 972.

Indeed, if you take this 1728 x 972 size and paste it into a Photoshop HD document, it perfectly fills the safe ACTION space, so Adobe has it wrong as well. (or everybody has it right and I just don't get it.... which seems more likely.)

And if you IMPORT the PBS safeTITLE specs into Avid, they PERFECTLY align with the Avid safe ACTION lines in both the title tool AND in the regular Composer grid. So, if you want to hit PBS specs for safe title, use Avid safe action.

Steve Hullfish
contributor: www.provideocoalition.com
author: "The Art and Technique of Digital Color Correction"

__._,_.___
Recent Activity:
Search the official Complete Avid-L archives at:   http://archives.bengrosser.com/avid/
.

__,_._,___

No comments:

Post a Comment