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Re: playing video without audio

for

From: Barry
Date: Jun 23, 2021 11:09PM


I like to give a little context on why such a thing is a failure. For people with attention issues, a moving image is a distraction that may repeatedly take their attention from the rest of the content. Imagine an annoying co-worker nudging you every few seconds to show you something on their smartphone whilst you're trying to work. They're not saying anything, just nudging you. You want a mechanism to stop them from doing that, or you want them to go away.

Cheers

B


-----Original Message-----
From: WebAIM-Forum < <EMAIL REMOVED> > On Behalf Of Steve Green
Sent: 23 June 2021 7:03 PM
To: WebAIM Discussion List < <EMAIL REMOVED> >
Subject: Re: [WebAIM] playing video without audio

This is covered by WCAG SC 2.2.2, which states "For any moving, blinking or scrolling information that (1) starts automatically, (2) lasts more than five seconds, and (3) is presented in parallel with other content, there is a mechanism for the user to pause, stop, or hide it".

So your video is an automatic failure unless it is shorter than 5 seconds or there is a mechanism for the user to pause, stop, or hide it.

In case anyone tries to argue that the video is not "moving, blinking or scrolling information ", the "understanding" page says that "Common examples include motion pictures, synchronized media presentations, animations...".

https://www.w3.org/WAI/WCAG21/Understanding/pause-stop-hide.html

Steve Green
Managing Director
Test Partners Ltd


-----Original Message-----
From: WebAIM-Forum < <EMAIL REMOVED> > On Behalf Of Swift, Daniel P.
Sent: 23 June 2021 18:54
To: <EMAIL REMOVED>
Subject: [WebAIM] playing video without audio

I'm hoping that I can get some direction on this. I was at a conference several years ago and I asked the question, "Does a video which does not contain audio and plays automatically produce an accessibility failure?" There was some deliberation among the group and the consensus was that 'yes' it was still a failure.

This question has come up again as "other places do it - why can't we". So this time I bring the question to this group of experts to see if the first group got it wrong or to see if they got it right.

Does an embedded video which does not contain audio and plays automatically produce an accessibility failure?

Thanks!

Daniel Swift, MBA
Senior Web Specialist
University Communications and Marketing
West Chester University
610.738.0589