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Re: Standards for web captioning

From: by way of Wendy A Chisholm <geoff_freed@wgbh.org>
Date: Tue, 18 Jun 2002 13:09:34 -0400
Message-Id: <>
To: w3c-wai-gl@w3.org

Hi, Paul:

 >* font size
 >* words per minute
 >* lines of text per viewing frame
 >* capital characters versus lower case

 >Or anything else along these lines. There are standards for television,
 >but are there any for the Web?

Actually, there aren't any standards for these things in the broadcast 
world.  Font size is determined by the available technology; the rest are 
determined by individual captioning agencies in conjunction with viewers.

 >If there isn't a set of standards, should we
 >create one?

Including some common-sense pointers in the guidelines is a good idea--for 
starters  see http://main.wgbh.org/wgbh/pages/captioncenter/ccstyles.html-- 
but I don't think the WAI is the proper body to write a full recommendation 
about captioning.  Some caption agencies, including The Caption Center, 
have already put in years of research regarding caption timing, display, 
quality, comprehension, etc.

Geoff Freed

 >Paul Bohman
 >Technology Coordinator
 >WebAIM (Web Accessibility in Mind)
 >Center for Persons with Disabilities
 >Utah State University
Received on Tuesday, 18 June 2002 13:01:56 UTC

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