Creating accessible multimedia
Creating Accessible Multimedia (reasons why, techniques and examples) is well documented by WGBH, Boston. They explain:
"Audio descriptions provide access to multimedia for people who are blind or visually impaired by adding narration that describes the visuals, including action, scene changes, graphics and on-screen text. Captions added to multimedia presentations ensure that the audio components of the presentation are accessible to individuals who are deaf or hard-of-hearing. Both audio descriptions and captions are useful learning tools for a wide array of users in addition to their originally intended audiences. Captions can provide a powerful search capability, allowing users to search the caption text to locate a specific video, or an exact point in a video. They are also useful for people learning to read or learning English as a second language. Audio descriptions can assist students with learning disabilities by reinforcing through audio what the user is watching on the screen."
This document explains why the use of multimedia on websites is important for web accessibility. It also provides links on how to incorporate multimedia into websites.
Check out the Media Access Group at WGBH Website FAQ for info on:
- Who watches closed captions?
- What are closed captions?
- Where are caption-capable TV sets sold?
- How are captions produced?
- How are live programs captioned?
- How do you know if a program is captioned?
- How much television programming is closed captioned?
- Why do captions sometimes appear with a program on one channel, then disappear when the program is later broadcast on a different channel?
- Who decides which programs to caption?