WCAG Success Criteriawcag-2.2-AAA
WCAG 1.4.7: Low or No Background Audio
WCAG 1.4.7 requires that pre-recorded audio content containing speech either has no background sounds, allows background sounds to be turned off, or keeps background sounds at least 20 dB quieter than the foreground speech. This protects users with hearing loss and cognitive disabilities who struggle to separate speech from competing audio.