All WCAG criteria
WCAG 2.1·Perceivable·1.2 Time-based Media

1.2.1 Audio-only and Video-only (Prerecorded)

Level A

Prerecorded audio needs a transcript; prerecorded silent video needs an audio or text description of what happens.

Why it matters

Deaf users miss audio-only media; blind users miss visual-only media. Each needs an equivalent in another modality.

Common failure
<audio src="/podcast.mp3" controls></audio>
Accessible version
<audio src="/podcast.mp3" controls></audio>
<a href="/podcast-transcript">Read transcript</a>

How OnlyEnable handles this

Source-code fix required. No widget can solve this — it requires changes to your content or markup. Our remediation team can help.

Related criteria in 1.2 Time-based Media