Marcelo Paiva

All criteriaPresent as slides

A braided woman in headphones and a hoodie sits writing at a cafe table behind three musicians.Meant to show: A hard-of-hearing woman with a silver braid, one hand cupped behind her ear

Success criterion 1.4.7

Low or No Background Audio

Audio does not contain background sounds, or the background sounds are at least 20 decibels lower than the foreground speech content.

  • Level AAA
  • Principle 1: Perceivable
  • Guideline 1.4: Distinguishable

In a user’s words

“If I wanted to listen to a rock concert while reading, I'd buy tickets!”

Who this helps: Hearing Impairment

What each role can do

Product manager
Minimize or eliminate background audio to prioritize speech content.
Designer
Provide an option to mute or control the volume of background sounds.
Developer
Implement audio controls and levels that align with the guidelines.
Tester
Test for audio clarity and ensure that background audio does not drown out speech.

Once it is fixed

“Now I can focus on the content without cranking up my hearing aids. Sweet silence!”

The quotes are written to illustrate the criterion. They are not testimonials from real people. For the official wording, find 1.4.7 in the W3C quick reference for WCAG 2.2 (opens in a new tab).

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