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07 May 2010 21:15

WCAG 2.0 Audio Audio Contrast Tool Help For Success Criteria 1.4.7. - E-Ramp Inc. Assistive Technology for people with disabilities

by Monique
WCAG 2.0, Success Criteria 1.4.7 is a guideline for accessible audio files on the internet. The goal is to help people who are hard of hearing understand the speech (foreground). This is done by making sure that any background music or noise is very quiet. Background music (or sound) should be at least 20dB lower than the foreground speech.

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last mark : 07/05/2010 21:21