RE: captions accessibility with screen readers.

I strongly disagree. trying to use any alert to force captions to be
announced through screenreaders is likely to do more harm than good.
Captions are for people with hearing disabilities. If screenreaders can't
avoid announcing them, their users would be subjected to the synthetic voice
speaking over the audio track.  
 
I can see a use case for where text is only visually displayed or an
informative image is used without narration, but the caption isn't the right
mechanism for this, a more appropriate solution would be an audio
description. 
 
As it is, some screenreader browser combinations or particular
implementations of video players do set the screenreader announcing captions
or alternatively giving a running update of the current position, both of
which are extremely distracting and make the video less, not more
informative and enjoyable. 
 
Bim
 

-------------
Bim Egan
Partner: AccessEquals
W: www.accessequals.com
E: bim.egan@accessequals.com 

 


  _____  

From: Nigel Megitt [mailto:nigel.megitt@bbc.co.uk] 
Sent: 17 December 2018 11:30
To: Sean Murphy (seanmmur)
Cc: W3C WAI ig
Subject: Re: captions accessibility with screen readers.



Yes they should, in my opinion, role="alert" aria-live="assertive".  If
you're watching video with captions, you're probably not interacting with
the rest of the page so much. However I can see that there may be a case
here for changing this depending on whether the video is full screen or not.
Certainly in the case of a page with a whole bunch of captioned videos, if
more than one is playing simultaneously, this would be a usability nightmare
(think social media pages with lots of videos embedded), so something more
subdued is needed. I don't think I've seen a UX pattern for this that really
works yet, but I'd like to learn more about how this might be possible.



On 17 Dec 2018, at 04:49, Sean Murphy (seanmmur) <seanmmur@cisco.com> wrote:

Thoughts from the wider community.
I am wanting to bounce something off the community in relation to accessible
media controls. Should the captions be accessible to a screen reader? When
the caption is, the useability of the web page and general usage suffers due
to much information. 
So should the captions be accessible by a screen reader? If so, what ARIA
property should be used? As ARIA-live="polite" is to verbose.



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SR ENGINEER.SOFTWARE ENGINEERING
 <mailto:seanmmur@cisco.com> seanmmur@cisco.com
Tel: +61 2 8446  <tel:+61%202%208446%207751> 7751

	

	
	
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