Re: 1.4 sounds.

From: Ben Caldwell <caldwell@trace.wisc.edu> · Date: Tue, 07 Mar 2006 12:28:18 -0600

The context for this is issue 1840
<http://trace.wisc.edu/bugzilla_wcag/show_bug.cgi?id=1840>

In the example provided, sound only seems to play in IE, but can be
easily turned off by using the escape key or UA configuration.

If a UAAG conforming User Agent is in use, this is covered by UAAG 3.2
Toggle audio, video, animated images at level 1, but I think Sailesh has
a good point about non UAAG conforming plugins or other embedded content
here though.

Should we consider bumping this to Level 1?

-Ben

Gregg Vanderheiden wrote:
> Have we adequately addressed this one?????
> 
>  
> 
>  
> 
> Gregg
> 
>  
> 
>  
> 
>   3. Consider guideline 1.4 for which no SC is available at level 1.
> 
>   The SC at level 2 states that a mechanism to turn off background audio that plays automatically is 
> 
> available. But if there is such background audio content, even minimum accessibility levels cannot be 
> 
> attained for a screen reader user who cannot listen to text being read out by the screen reading 
> 
> software. 
> 
>   Example at http://www.scit.wlv.ac.uk/~c9581158/main.html <http://www.scit.wlv.ac.uk/%7Ec9581158/main.html> 
> 
>   (Compression Technology in Multimedia)
> 
>   Now one can turn off Play Sounds in IE’s accessibility options and the background music stops and 
> 
> text content is accessible without any disturbance. Therefore a feature built into user agent that 
> 
> interacts with the content marked up / authored in a particular way permits this minimum accessibility. 
> 
> If the author duplicates the browser’s feature   for turning off audio content, it is merely a “nice thing to 
> 
> have” and should not be a measure of accessibility. 
> 
>    
> 
>   On the other hand if content iUAA the author to provide a feature to turn off sound and
> 
> this should be a minimum accessibility requirement or a level 1 requirement.
> 
>  
> 
>  
> 
> 
> Gregg
> 
> ------------------------
> 
> Gregg C Vanderheiden Ph.D.
> Professor - Depts of Ind. Engr. & BioMed Engr.
> Director - Trace R & D Center
> University of Wisconsin-Madison
> _<http://trace.wisc.edu/>_ FAX 608/262-8848 
> For a list of our list discussions http://trace.wisc.edu/lists/
> 
> The Player for my DSS sound file is at http://tinyurl.com/dho6b
> 
>   <http://trace.wisc.edu:8080/mailman/listinfo/>
> 
>  
> 
>  
> 

-- 
Ben Caldwell | <caldwell@trace.wisc.edu>
Trace Research and Development Center <http://trace.wisc.edu>