[whatwg] accessibility management for timed media elements, proposal

I wrote:

> The crudest way of doing this would be to provide transcriptions of 
> audio descriptions to supplement the captions. I believe one can do that 
> with SMIL; I don't know what the situation with other container formats 
> or player UIs is however.

I just ran across the Open and Closed Project's proposal for a XEX 
format including "audio description scripts", which is precisely the 
sort of inclusion I mentioned:

http://openandclosed.org/docs/AccessibilityExchange.html

--
Benjamin Hawkes-Lewis