Re: [Avid-L2] PBS Safe Action/Safe Title Specs?

PBS also no longer accepts SD production. Action and title safe are mostly obsolete for digital television where overscan is fixed and not variable. When HD is delivered as an SD signal, the processing upstream will determine the overscan as much as the CRT itself. This processing is the primary variable now, not the CRT.

Yes, there are exceptions, but going forward, these are minor. Flat panels do not have variable cut-off. Overscan is fixed at roughly 2.5%, hence the "93%" action safe. Even most existing CRTs have highly reliable overscan at slightly less than 10%.

Because PBS has changed their delivery standard does not mean there is no reason to follow old standards. If you are delivering 16x9 on DVD to CRTs, your letterbox will likely be cut at the sides by 5-10%. I still follow old title safe on the sides. Besides, it looks better. And if you expect to be center-cut, then you should be following center-cut title-safe

Prediction: Overscan is EOL and monitor manufacturers will change the default setting to full scan over the next few years. Every 1080p monitor I've seen has a full scan mode that is easily accessible via the consumer menu.

Cheers,
tod

On May 19, 2012, at 2:08 AM, John Moore wrote:

> PBS Safe Action/Safe Title Specs?
> From the PBS TOS-1 2010 Edition:
>
> 2.3.4 The Safe Areas are:
> 2.3.4.1 Safe Action is the area within which all signification action must be contained. The area is 93% of the width and height of the production aperture.
> 2.3.4.2 Safe Title Area is the area within which all significant text must be contained. The area is 90% of the width and height of the production aperture.
> 2.3.5 Open Captions are limited to 80% of the width and 80% of the height of a 4:3 protected area (when there is a 4:3 protected area).
>
> Have I had it wrong for the last 30ish years? I always thought Safe Action 10% in and Safe Title 20% in. What am I missing here?
> John Moore
>
> Barking Trout Productions
>
> Studio City, CA
>
> bigfish@pacbell.net
>
> [Non-text portions of this message have been removed]
>
>

Tod Hopkins
Hillmann & Carr Inc.
todhopkins-at-hillmanncarr.com






[Non-text portions of this message have been removed]



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