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OGCIO

Level AAA − WCAG 2.0 Success Criterion 1.2.9 − Audio-only (Live)

For live audio, offer an alternative that contains equivalent information. For example, make speech notes available if a speech is being delivered.

Before Rectification

A webpage sample containing a live audio presentation without a link to speech notes.

This live presentation is not accessible to people beset with hearing impairment.

After Rectification

A webpage sample containing a live audio presentation with a link to speech notes.

The image above shows that a simple link directing users to the speech notes means that all users can access this content.

WCAG 2.0 Reference:

http://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-live-audio-only.html