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Re: video / audio transcripts

From: Charles McCathieNevile <charles@w3.org>
Date: Tue, 26 Feb 2002 08:31:40 -0500 (EST)
To: John Morse <John.Morse@uk.circle.com>
cc: "'w3c-wai-ig@w3.org'" <w3c-wai-ig@w3.org>
Message-ID: <Pine.LNX.4.30.0202260818010.15016-100000@tux.w3.org>

in my opinion the best approach is to provide for subtitled video content,
with seperate audio tracks available to incorporate description, and a text
equivalent track for the description. You then want to be able to provide the
text equivalent tracks merged into a single text presentation. SMIL, an XML
language for the text equivalents, and XSLT for transforming the equivalents
into a "complete text transcript" or providing one or the other as a static
document would be good approaches. (You may find that the best thing to do
with the text equivalents is to have them in XML as a base, and transform
them to formats that work in particular players).

I haven't worked on enough of the text formats or enough on multimedia
presentations in full to provide a complete step-by-step guide to this, but I
hope this is a helpful start. If anyone can help in this it would be

I would also draw the attention of people intersted in this to the creation
recently of a task force at W3C to look into the question of providing a
standard format for this - see
http://lists.w3.org/Archives/Public/www-tt-tf/2002Jan/003 for an introduction
to the list (which is also part of the list archive).


Charles McCN

On Tue, 26 Feb 2002, John Morse wrote:

  we are working on a proposal for a client, in the requirements is the
  inclusion of audio and video content,
  I know I need to provide a transcript of this content for the visually
  impaired, blind, hearing impaired and deaf,. but how best to do this?

  a static page?
  scrolling text, with control for speed direction and text size?
  subtitled content?

  your input gratefully received

  John Morse
  Senior Software Engineer
  Euro RSCG Circle
  100 Victoria Street
  Bs1 6he
  P  : 0117 311 7770
  m : 07776 226520

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Charles McCathieNevile    http://www.w3.org/People/Charles  phone: +61 409 134 136
W3C Web Accessibility Initiative     http://www.w3.org/WAI    fax: +1 617 258 5999
Location: 21 Mitchell street FOOTSCRAY Vic 3011, Australia
(or W3C INRIA, Route des Lucioles, BP 93, 06902 Sophia Antipolis Cedex, France)
Received on Tuesday, 26 February 2002 08:31:43 UTC

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