Why it matters
Deaf and hard-of-hearing users cannot access live audio content without real-time captions. Unlike prerecorded content, live events cannot be captioned in advance.
Common violations
- Live webinars without real-time captioning
- Streaming events with no caption support
- Live customer support video calls without captions
- Conference live streams missing CART services
Code examples
Bad
<video id="live-stream" autoplay>
<source src="stream-url">
<!-- No live caption track -->
</video>Good
<video id="live-stream" autoplay>
<source src="stream-url">
<track kind="captions" src="live-captions-endpoint" srclang="en" label="English captions" default>
</video>
<!-- Using a live captioning service like CART or AI-powered captions -->How to fix
Use professional CART (Communication Access Realtime Translation) services or AI-powered live captioning tools. Integrate caption APIs for streaming platforms. Test caption accuracy and latency.
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