Audio Accessible Alternative Check

Description

The “Audio Accessible Alternative Check” evaluates whether there are <video></mark> elements containing audio content (e.g., speech or meaningful sounds) and whether they provide an accessible text alternative, typically in the form of captions.

Example outcome

I noticed that there is 1 <video></mark> element with audio content that must have an accessible alternative.

Impact

• Auditory Disorders: Without captions, users with auditory disorders cannot access spoken content or key sounds.
• Non-Native Speakers: Captions support language comprehension and clarity.

Fixes

To address missing audio accessible alternatives:

1. Locate the inappropriate <video></mark> element.
2. Provide captions for the audio (e.g., adding a <track></mark> element within the <video></mark> tag).

Resources

• WCAG 2.2: Understanding Success Criteria 1.2.2
• WCAG 2.2 Techniques: Technique G87: Providing closed captions
• WebAIM: Captions, Transcripts, and Audio Descriptions