Web Content Accessibility Guidelines a guide to the accessibility requirements
1 Perceivable

1.2.9 Audio-only (Live)

Conformance level: AAA
Criterion released in WCAG version: 2.0

Official description of the success criterion

An alternative for time-based media that presents equivalent information for live audio-only content is provided.

What to do?

Provide an alternative to live audio-only content.

Why is it important?

Ensures live audio content is accessible to people who are deaf or hard of hearing.

More about this criterion elsewhere