What WCAG 1.4.7 Requires
AAA only: background audio behind speech must be quiet enough, or removable, so the spoken content stays intelligible.
Can AccessBell Test This Automatically?
Not fully. Like most WCAG criteria that depend on meaning or context, this one needs a person to judge. AccessBell's report lists it for manual review rather than marking it pass or fail automatically, so it never gets missed.
How to Test It by Hand
Listen to a narrated audio track and check that background music or noise does not compete with the speech.
Common Failures
- A narrated video has background music mixed too loudly relative to the narration, with no way to turn it off.
Related Criteria in Distinguishable
WCAG 1.4.7 Questions
What does WCAG 1.4.7 require?
AAA only: background audio behind speech must be quiet enough, or removable, so the spoken content stays intelligible.
Can AccessBell test WCAG 1.4.7 automatically?
Not fully. This criterion needs a person to judge, so AccessBell's report lists it for manual review rather than marking it pass or fail on its own.
What level is WCAG 1.4.7?
Level AAA, added in WCAG 2.0. Level AAA is the highest, most demanding conformance level in WCAG.
Sources
- W3C: Understanding 1.4.7 Low or No Background Audio (opens in a new tab)
- W3C: Web Content Accessibility Guidelines (WCAG) 2.2 (opens in a new tab)
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