8.3 WCAG 2.2 Success Criterion 1.2.2 − Captions (Prerecorded)
Provide captions for audio tracks so that they are accessible by persons with hearing impairments. Captions not only present the content of a conversation but also important cues and the ambient sound.
Before Rectification
When an audio is embedded in a webpage, the audio is only usable by people who can hear.
After Rectification
Text captions as shown in the example above should be provided so that a person with poor hearing can still access the content of the audio.
WCAG 2.2 Reference:
https://www.w3.org/WAI/WCAG22/Understanding/captions-prerecorded