- From: Charles McCathieNevile <charles@w3.org>
- Date: Wed, 27 Oct 1999 03:11:54 -0400 (EDT)
- To: thierry MICHEL <tmichel@w3.org>
- cc: w3c-wai-au@w3.org, ph@w3.org
Thierry,
Thank you for your feedback. The issue of particular accessibility practices
for particular languages is discussed in Guideline 1, and in the techniques
for that guideline. (Among other references we include the W3C Note
Accessibility in SMIL, jointly authorised by the SMIL working group.) It is
assumed that developers are (or will become) familiar with the languages that
are implemented in their authoring tools, and the specific requirements for
each language.
We hope that this and your other comments are adequately addresed by the
techniques for each of the relevant guidelines, which are contained in an
informative document whose latest draft is at
http://ww.w3.org/TR/1999/WD-WAI-AUTOOLS-TECHS-19991026
If you have further suggestions for that docuement, please let us know.
Thank you for the list of SMIL authoring Tools. I will use it to update the
page at http://www.w3.org/WAI/AU/tools where we try to keep track of
authoring tools.
Cheers
Charles McCathieNevile
On Fri, 1 Oct 1999, thierry MICHEL wrote:
Here are my personnal comments about the Authoring Tool Accessibility
Guidelines 1.0
http://www.w3.org/TR/1999/WAI-AUTOOLS-19990903/
Maybe more comments to come from reviewers within the SYMM WG.
Guideline 3:
"Generating equivalent information, such as textual alternatives for
images and audio descriptions of video".
The authoring tools might also propose the author to add captioning and
overdubs/subtitles when inserting a video or audio. SMIL capabilities
are "system-captions" and "system-overdub-or-caption"
Now image you insert a video in a SMIL document
<video src="http://www.w3.org/BBC.rm" title="Future of the Web"
alt="Interview with W3C staff for BBC"
abstract="The BBC interviews Joe, Tim, and Judy .....long
description...."
longdesc="http://www.w3.org/Future">
and also provide a textstream
<textstream alt="Captions for BBC interviews" src="BBCcaption.rt"
system-captions="on"/>
<textstream alt="Subtitles for BBC interviews" src="BBCsubtitles.rt"
system-overdub-or-caption="caption"/>
Does the authoring tools needs to provide alternative information
through the attributes of the video element AND alternative information
through elements textstream providing captions ?
3.3 Provide pre-written alternative information for all multimedia files
packaged with the authoring tool:
Not all multimedia files allow to embed text description in the file
itself. In this case the authoring tool should use a database/registry
to provide alternative text for each of multimedia files (as stated in
3.4)
But what about multimedia files that are not provided with the authoring
tool ? for example CD Cliparts that you buy. Should there be a standard
format for providing a database/registry that is usable by authoring
tools ? Using URI might be a way to link alternative information from
multimedia cliparts.
Checkpoint3.4:
http://www.w3.org/TR/1999/WAI-AUTOOLS-TECHS/#check-have-alt-registry
refers to checkpoints 2.3.1, 2.3.4, 2.3.5 wich do not seem to exist.
FYI, Here a list of current SMIL authoring tools:
CWI Grins : http://www.cwi.nl/GRiNS
Allaire: http://www.allaire.com
HotSausage SMIL Composer:
http://www.sausage.com/supertoolz/toolz/stsmil.html
LP Studio: http://www.prodworks.com/lpstudio_intro.htm
TAG Editor 2.0 - G2 release: http://tag.digital-ren.com
VEON authoring tool: http://www.veon.com
_______________________________________________________________
Thierry MICHEL tmichel@w3.org
W3C / INRIA +33 (0) 4 92 38 79 87
2004, Route des Lucioles
BP 93
06902 Sophia Antipolis Cedex,
France
_______________________________________________________________
--Charles McCathieNevile mailto:charles@w3.org
phone: +1 617 258 0992 http://www.w3.org/People/Charles
W3C Web Accessibility Initiative http://www.w3.org/WAI
MIT/LCS - 545 Technology sq., Cambridge MA, 02139, USA
Received on Wednesday, 27 October 1999 03:11:56 UTC