Re: FYI - Media Accessibility User Requirements WD

ISSUE-303 https://www.w3.org/AudioVideo/TT/tracker/issues/303 should support the hyperlinking (ECC-2) requirement.


From: Glenn Adams <glenn@skynav.com<mailto:glenn@skynav.com>>
Date: Tuesday, 19 August 2014 17:27
To: Nigel Megitt <nigel.megitt@bbc.co.uk<mailto:nigel.megitt@bbc.co.uk>>
Cc: TTWG <public-tt@w3.org<mailto:public-tt@w3.org>>
Subject: Re: FYI - Media Accessibility User Requirements WD



On Tue, Aug 19, 2014 at 10:20 AM, Nigel Megitt <nigel.megitt@bbc.co.uk<mailto:nigel.megitt@bbc.co.uk>> wrote:
Thanks for the heads-up Glenn. It looks like these bits: http://www.w3.org/TR/2014/WD-media-accessibility-reqs-20140814/#captioning and http://www.w3.org/TR/2014/WD-media-accessibility-reqs-20140814/#enhanced-captions-subtitles are particularly relevant to us.

Would anyone object to adopting those requirements as a subset of the requirements that TTML 2 and IMSC 1 should be measured against when assessing their conformance when it comes to LC/CR as per the process for publishing Recommendations (either the old or the new process)?

I read through the requirements that would pertain to TTML, and believe the following need to be addressed:

  *   ruby (CC-18)
  *   hyperlinking (ECC-2)
  *   reading speed modification (ECC-5)

I believe tatechuyoko (CC-16) is already covered by tts:textOrientation. Reading speed may already be covered (at least in part) by the playRate parameter of [1].

[1] https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml2/spec/ttml2.html#time-expression-semantics-media




Kind regards,

Nigel

From: Glenn Adams <glenn@skynav.com<mailto:glenn@skynav.com>>
Date: Tuesday, 19 August 2014 16:59
To: TTWG <public-tt@w3.org<mailto:public-tt@w3.org>>
Subject: FYI - Media Accessibility User Requirements WD
Resent-From: <public-tt@w3.org<mailto:public-tt@w3.org>>
Resent-Date: Tuesday, 19 August 2014 17:00

Media Accessibility User Requirements Working Draft Updated

   14 August 2014 | Archive

   http://www.w3.org/blog/news/archives/4024


   The Protocols and Formats Working Group (PFWG) today published
   an updated Working Draft of "Media Accessibility User
   Requirements," a planned W3C Working Group Note. This document
   describes the accessibility requirements of people with
   disabilities with respect to audio and video on the Web,
   particularly in the context of HTML5. It explains alternative
   content technologies that people use to get audio and video
   content, and how these fit in the larger picture of
   accessibility, both technically within a web user agent and
   from a production process point of view. Learn more about the
   Web Accessibility Initiative (WAI).

   http://www.w3.org/WAI/PF/

   http://www.w3.org/TR/2014/WD-media-accessibility-reqs-20140814/

   http://www.w3.org/WAI/