Audio-only and Video-only (Prerecorded)
Success Criterion 1.2.1 Level A
Does your site or application provide transcripts for audio only files, and descriptions for what is happening in a video only file?
Why is this important?
When video content with no audio is presented to someone who is blind, they cannot see it. Likewise, when audio only content is presented to someone who is deaf or has a severe hearing impairment, they cannot hear it. This means they are excluded from this type of content within the site or application.
Whom does it benefit?
As a person who is blind and cannot see visual information
displayed on a screen,
I wantto use audio descriptions of video content
so that I can access and understand the information being visually conveyed.
As a person who is deaf,
I want to use a transcript or closed captioning
so that I can read audio-based information that I cannot hear.
What should you do?
- For prerecorded audio-only and video-only content, provide the same information in a text transcript.
- Another alternative solution for video-only content is to add an audio track with sufficient detail for a person to be able to understand what is happening in the video.
How do you do it?
- For audio-only, create a text transcript file of the content. Provide a link to the transcript near the audio file player.
- For video-only, record an audio-description track describing what is happening visually in the video. Make the audio track available to those who need it.
Need technical guidance?
Technical guidance is available for implementing this Success Criterion at the Understanding
Additional resources to help you:
- Making Audio and Video Media Accessible - W3C Web Accessibility Initiative
- 1.2.1 – Audio-only and Video-only (Pre-recorded) (Level A) - WUHCAG (www.wuhcag.com)
- Pearson example for a transcript - Pearson