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Meaning of "synchronized media"

From: Robin Hillman <robinhillman@tactica.ca>
Date: Fri, 5 Feb 2016 08:14:01 -0600
Message-ID: <CACSHrofDONp0ZvOWo-8hV_BNOYoyL5PxyC__C2jDUgy2G_MyRw@mail.gmail.com>
To: w3c-wai-ig@w3.org
Hello --
I have a question about the meaning of "synchronized media", because the
terms used seem very specific. This is related to SC 1.2.5 in WCAG 2.0:

It defines synchronized media as:
"audio or video synchronized with another format for presenting information
and/or with time-based interactive components, unless the media is a media
alternative for text that is clearly labeled as such"

My confusion is around "audio or video synchronized with another format" --
what is "another format"? What would some examples of synchronized media
be? Does this necessarily include something like a movie?

So does this mean that all videos (I mean, audio & video, like what you
would see on youtube) would require described audio in order to meet this

-Robin Hillman
Received on Friday, 5 February 2016 14:14:49 UTC

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