Rule: Audio-only (Prerecorded)

Rule ID Audio 1
Conformance Required
Definition For prerecorded audio-only media provide a text transcript that presents equivalent information of prerecorded content. Exception for when the audio is a media alternative for text and is clearly labeled as such.
  • People who are deaf, are hard of hearing, or who are having trouble understanding audio information for any reason can read the text transcripts.
  • People who are deaf-blind can read the text in braille.
  • Additionally, text transcripts support the ability to search for non-text content and to repurpose content in a variety of ways.
Conformance Required
WCAG Success Criteria

Success Criterion 1.2.1 Audio-only and Video-only (Prerecorded)

Rule Category Audio/Video
Rule Scope Element
  • For the audio eleemnt use the track element to add captioning to the audio content.
  • Use WebVTT to encode the timed stamped captioning information for the audio content.
  • For object and embed elements use aria-describedby to reference a text description of the video content.
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