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Re: timed-text update and further discussion

From: Martin Duerst <duerst@w3.org>
Date: Wed, 20 Feb 2002 18:30:10 +0900
Message-Id: <>
To: geoff freed <geoff_freed@wgbh.org>, <www-tt-tf@w3.org>, <w3c-wai-pf@w3.org>
Cc: w3c-i18n-ig@w3.org
Hello Geoff,

Here are requirements for a timed text format from an
internationalization/localization point of view:

- Make sure character encoding issues,... are cleanly solved
   (this is okay if the format is XML-based).
- Address basic bidirectional issues (e.g. use the HTML solution).
- Allow ruby markup (used a lot on Japanese television, in particular
   for children and programs for people with hearing challenges).
   See http://www.w3.org/TR/ruby, probably simple ruby markup could be
- Mark up the language of the text (i.e. xml:lang).
- Allow extensibility for similar cases as the three above.

- Allow for parallel languages, in different documents or in the
   same document (e.g. SMIL/SVG <switch>). Allow different languages
   to cut the text differently where necessary (with different timing).
- Allow for mixed-language text and parallel texts in more than one
   different language.

I have copied the I18N IG, maybe they have other ideas.

Regards,    Martin.

At 16:59 02/02/19 -0500, geoff freed wrote:

>After a period of inactivity, it's time to move the timed-text format 
>discussion along.  To this end, I would like to invite people to send any 
>remaining timed-text requirements to the list.  These requirements will be 
>added to the existing document, available at
>The W3C has not yet granted us working-group status, but gathering 
>requirements at this stage will save us time later, when (assuming) the 
>W3C gives us the go-ahead to begin the real work.  All requests will be 
>added to the document referenced above.  Since we're primarily interested 
>in gathering everyone's ideas, we won't yet be wrestling with what is vs. 
>what is not a valid request or requirement.  That sort of fun will begin later.
>In addition, the Web Accessibility Initiative's Protocols and Formats 
>Working Group (WAI/PF), which is currently hosting the timed-text 
>discussion, will be holding a meeting in Boston, MA, on April 8 and 9, 
>2002.  We'd like to have a teleconference with all timed-text participants 
>during that time, if possible.  The teleconference should last 
>approximately two hours.  Are people available those days?  Please send me 
>a note off-list (geoff_freed@wgbh.org) to let me know your availability, 
>and I'll coordinate a date and time.
>Finally, for the purpose of creating a baseline, next week I will post a 
>document detailing what formats already exist for displaying timed text.
>Geoff Freed
>CPB/WGBH National Center for Accessible Media (NCAM)
>WGBH Educational Foundation
Received on Wednesday, 20 February 2002 04:30:20 UTC

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