What is Line 21?
Line 21 is a state-of-the-art caption delivery software that creates, enhances, translates, and delivers live captions to clients. It combines human expertise with AI services for optimal results.
The platform supports captioning in over 100 languages, working with a global network of captioners and agencies. Line 21 offers features like an AI proofreader, automatic translation, and low-latency delivery to multiple destinations, including browser links, subtitle overlays, video encoding, and API integration.
Features
- AI Proofreader: An innovative dynamic safeguard for caption accuracy.
- AI Translations: Automatically translate captions in 100+ languages.
- Caption Encoding: Use CEA-x08 to encode captions into video streams.
- Fast Delivery: It takes ~144ms for captions to be delivered to viewers.
- Multiple Destinations: Distribute captions to a wide range or destination, from YouTube, Facebook, Zoom and Team to custom RTMP, web link and overlay app.
Use Cases
- Live broadcast captioning and translation
- Captioning for corporate events and webinars
- Providing accessibility for online meetings and conferences
- International content distribution with multilingual captions
- Real-time captioning for concerts and screenings
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