W3C home > Mailing lists > Public > public-html@w3.org > September 2008

Re: Acessibility of <audio> and <video>

From: David Poehlman <david.poehlman@handsontechnologeyes.com>
Date: Thu, 4 Sep 2008 19:04:44 -0400
Message-ID: <936AB3BBA24445A0935E49DA2BE3336A@HANDS>
To: "Lachlan Hunt" <lachlan.hunt@lachy.id.au>
Cc: <public-html@w3.org>, "W3C WAI-XTECH" <wai-xtech@w3.org>

When I formulate an hypothesis, it is based on some facts I understand to be 
true but it is an hyphosis because the whole answer is not yet apparent and 
yes, setting out a proof contemplates the variables, but eh variables do not 
preclude or biass the outcome as has been done below.  What I have stated is 
not further evidence against long desc anymore than the fact that lots of 
folk don't drive on the left side of the road indicates that people should 
drive on the right side of the road.

One argument for forgin ahead with providing information which is 
inaccessible is that it is better to provide it to most of the people than 
to deny it to all.

I would say that in the case of long desc that as long as you screen for the 
variables and also variables in level of capability of users, the study 
would be worth doing but will still not be conclusive in and of its self. 
Why do we have longdesc in the first place?  It was certainly not born in a 
vacume.

----- Original Message ----- 
From: "Lachlan Hunt" <lachlan.hunt@lachy.id.au>
To: "David Poehlman" <david.poehlman@handsontechnologeyes.com>
Cc: <public-html@w3.org>; "W3C WAI-XTECH" <wai-xtech@w3.org>
Sent: Thursday, September 04, 2008 6:49 PM
Subject: Re: Acessibility of <audio> and <video>



David Poehlman wrote:
> Actually, unless you cover all the variables, it will most likely prove 
> your
> first #2.  Not all browsers support longdesc and maybe even not all
> assistive technologies recognize it as such?

Then that is just further evidence against the use of longdesc.
Although I was under the impression that recent versions of screen
readers do have support for it, if it's still not supported by widely
used versions after a decade of being in HTML4, I really don't think
it's worth waiting even longer for it to be supported on the video
element too.  However, I wouldn't object to the study being performed by
users with screen readers that are known to support longdesc, as long as
each individual used their own normal settings and preferences, to avoid
biasing the test in anyway.

-- 
Lachlan Hunt - Opera Software
http://lachy.id.au/
http://www.opera.com/
Received on Thursday, 4 September 2008 23:05:29 UTC

This archive was generated by hypermail 2.3.1 : Monday, 29 September 2014 09:38:58 UTC