- Success Criterion 1.2.4
- Conformance level AA
Live Auto-Captions Too Inaccurate for Technical Content
1.2.4 — Captions (Live)
Scenario
Setting
A recipe site's ingredient list
What’s wrong
Live auto-generated (speech recognition) captions with accuracy too low for comprehension in the domain (names, technical terms) and no correction.
Example
Consider a recipe site's ingredient list: live auto-generated (speech recognition) captions with accuracy too low for comprehension in the domain (names, technical terms) and no correction.
Why it matters
Deaf and hard-of-hearing participants in live streams, classes, and meetings. On a recipe site's ingredient list specifically, they get no equivalent for the sound or picture content.
How to test
Compare live auto-generated captions to a 30-second sample of speech: heavy errors in names/technical terms with no correction mean it fails.
How to fix
Readable, reasonably accurate real-time captions must run for the entire live event.
Outcome
Fixed, a visitor to a recipe site's ingredient list can understand the image, video, or audio content.
Who is affected
Deaf and hard-of-hearing participants in live streams, classes, and meetings.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Live Event Streamed With No Captioning Plan at All
- Live Webinar Audio With No Real-Time Captions
- Live Captions So Delayed They’re Useless During the Event
- Live Caption Feed Separated From the Video Player
- Live Captions That Cut Out Partway Through the Event
- Live Captions Unreadable Due to Overlap or Low Contrast