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1.4.7 Low or No Background Audio [Level AAA]


Low or No Background Audio:

1.4.7 For prerecorded audio-only content that (1) contains primarily speech in the foreground, (2) is not an audio CAPTCHA or audio logo, and (3) is not vocalization intended to be primarily musical expression such as singing or rapping, at least one of the following is true: (Level AAA)Understanding Success Criterion 1.4.7

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Sufficent Techniques

Advisory Techniques

Advisory Techniques for 1.4.7 - Low or No Background Audio
  • Providing a way for users to adjust auditory levels of foreground and background sound independently (future link)

  • Providing an audio track for synchronized media that includes background sounds that are at least 20 decibels lower than speech (future link)

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