WCAG 1.4.7: Low or No Background Audio
WCAG 1.4.7 Low or No Background Audio is a level AAA success criterion from WCAG 2.0. Speech in audio should be at least 20 decibels louder than background sound, or the background can be turned off.
People who are hard of hearing cannot separate speech from music.
How to test
Listen to product videos. If music sits under speech, look for a way to turn the music off.
How to fix
Drop the music under speech, or offer a voice-only version.
Example that fails
A product story has music as loud as the voice.
Example that passes the check
A control switches to a voice-only cut.
Shopify
Upload a voice-only version of the brand video and offer it in the section.
WooCommerce
Add the voice-only file as a second product video.
WordPress
Provide a second audio file labelled Voice only.
Wix
Add a second audio or video element labelled without music.