WCAG – 1.2.1 Audio-Only and Video-Only (Level A)

1.2.1 Audio-Only and Video-Only: For prerecorded audio-only and prerecorded video-only media, the following are true, except when the audio or video is a media alternative for text and is clearly labeled as such: (Level A)

  • Prerecorded Audio-only: An alternative for time-based media is provided that presents equivalent information for prerecorded audio-only content.
  • Prerecorded Video-only: Either an alternative for time-based media or an audio track is provided that presents equivalent information for prerecorded video-only content.

Requirements

  • A text transcript is available (on the same page or on a page linked from the page containing the media) for any audio-only content (e.g. podcasts) and video-only content.

Benefitted disability types

This ensures that the information is available to people who cannot hear.

Summary

  • For audio content that has no video (like a podcast), provide a transcript.
  • Audio-only content that communicates information (like a podcast) should have a text transcript.

Common mistakes

  • Audio-only content that communicates information does not have a text transcript.
  • Video-only content that communicates information does not have a text transcript or an audio description.
  • The text transcript for audio-only content does not include all spoken dialogue and sound effects.
  • The text transcript for video-only content does not include descriptions of all important visual information.
  • The text transcript for audio-only or video-only content is not clearly labelled as such.
  • The audio description for video-only content does not include descriptions of all important visual information.

References

Accessibility Guidelines- Github.io

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