why taking accessibility into account while producing videos ?
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Why taking accessibilityinto account while producing videos ?
Sébastien Delorme – Atalan
Tuesday, July 06th 2010
Sébastien Delorme
Accessibility expert & consultant
Atalan – www.atalan.fr
Member of Paris Webwww.paris-web.fr
Member of AccessiWeb working group www.accessiweb.org
So what exactly constitutes an accessible video ?
So what exactly constitutes an accessible video ?
captions but…
So what exactly constitutes an accessible video ?
…readable captions
So what exactly constitutes an accessible video ?
…synchronised readable captions
So what exactly constitutes an accessible video ?
…synchronised readable closed captions
So what exactly constitutes an accessible video ?
Synchronised closed captions
To enable to people who are deaf or hard of hearing
to watch videos
In France, 4 million of people who are hard of hearing including 450,000
with severe disabilities.
INSEE – HID survey 1999 (update scheduled for July 2010)
captions convey not only the content of spoken dialogue
but also equivalents for non-dialogue audio information needed to understand
the content, including sound effects, music, laughter, speaker identification
and location
scary music ♪
captions convey not only the content of spoken dialogue
but also equivalents for non-dialogue audio information needed to understand
the content, including sound effects, music, laughter, speaker identification
and location
creaking door…
That is why it is important to have closed captions that can be turned on and off
For a high accessibility level provide sign language interpretation
Sign languages are independent languages and are different in each country
Other benefits of captioning
Low quality audio
Other benefits of captioning
Langues étrangères (foreign languages)
So what exactly constitutes an accessible video ?
synchronised audio description
Audio description : narration added to the soundtrack to describe
important visual details that cannot be understood from the main
soundtrack alone
Mr. Tek – software architect
« On screen, Mr. Tek, software architect »
« Man talking on a public phone »
So what exactly constitutes an accessible video ?
text transcription
Justin Eckhouse, CNET, 2009Source : http://www.w3.org/WAI/bcase/resources.html
30% increase in traffic from Google after CNET started providing transcripts
“We saw a significant increase in SEO referrals when we launched an HTML version of our site, the major component of which was our transcripts.”
Others benefits for users
indexing of video content
Example : http://france24.demos.voxalead.labs.exalead.com
Questions ?
Sébastien DelormeAccessibility expert & consultant, Atalan
CreditsAll photos used in this presentation are licensed under Creative Commons and posted on Flickr.
Thank you to : big-film, Biblioteca de Arte-Fundação Calouste Gulbenkian, barb_ar, Troy Holden, Lord Jerome, Nej!B, agat_a, Ezu, jcoterhals, Caro Wallis
The font used on theses slides is Ingleby is available on Dafont.