[whatwg] Alt attribute for <video> and <audio>

[David Singer]

At 11:22  +1000 10/08/09, Silvia Pfeiffer wrote:
>I'd be curious to hear what those problems and provisions are for
><video> and <audio>.

I'm just referring to the rather extensive disciussion of 'alt' for 
images, and the concern some have with attributes that 'most' people 
don't see.

I do agree that we need to think about both timed-media alternatives 
and accessibility provisions (captions, audio description of video, 
etc.) and untimed-media accessibility provisions (alternative text, 
titles, summaries, links to transcripts etc.).  I'm just not sure 
what the best tools are, etc.

>
>Even though I'm a strong supporter of solving the
>subtitles/captions/i18n/sign language/audio annotation  a11y issues of
><video> and <audio>, I still believe that "alt" may have a use similar
>to what it is used for with images.

I agree there is a need, I'm just not sure how best to satisfy it. 
Discussion is good, but let's start with the problems and 
opportunities, then look at existing structures (such as ARIA) or 
parallels (such as alt), and see how well we can do.
-- 
David Singer
Multimedia Standards, Apple Inc.