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Access by Design: A Guide to Universal Usability for Web Designers
book

Access by Design: A Guide to Universal Usability for Web Designers

by Sarah Horton
July 2005
Beginner content levelBeginner
288 pages
6h 13m
English
New Riders
Content preview from Access by Design: A Guide to Universal Usability for Web Designers

Chapter 12. Audio and Video

Audio and video share the same fundamental challenge as all nontext content: Some users will be unable to access the information since it’s available through only one sense: either vision or hearing. Audio can only be heard; video can only be seen. On the other hand, text is versatile because—thanks to text-to-speech technology—it can be both seen and heard. Consequently, the primary task of delivering accessible media is to provide a text equivalent for both visual and audible components.

Audio and video also present technical challenges. The technical requirements for network delivery of them are high—too high for some users. Users with slow Internet access may not be able to receive the large amount of data required ...

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Publisher Resources

ISBN: 9780133067354Purchase book