# Education

Students who are deaf or hard of hearing, studying in a second language, or sitting at the back of a large hall all learn better with captions.

Line 21 brings professional captioners or speech recognition into the lecture hall and the online classroom, with translations for international students.

Covers: Lectures and classrooms, Seminars, Online courses.

## What makes it hard

**Specialist vocabulary**: Lectures are full of technical terms that general-purpose speech recognition has never heard.

**Accessibility obligations**: Captioning is often a reasonable adjustment under accessibility law, where human captioners are the recognised standard.

**Recorded content too**: Lectures are recorded and reused, and the recordings need subtitles as well.

## How Line 21 handles it

### Recognised human captioning

CART captioners recognised under regulations such as the ADA, the Equality Act 2010 and the European Accessibility Act.

[Human live captions](https://line-21.com/services/human-live-captions)

### AI that knows the subject

Add the syllabus, slides and reading lists so speech recognition and the AI Proofreader know the course's terms.

[AI Proofreader](https://line-21.com/features/ai-proofreader)

### On every student's device

Students follow on their own laptop or phone and choose the language they read in.

[Browser page](https://line-21.com/docs/destinations/browser)

### Subtitles for recordings

Accurate, well-timed subtitles for recorded lectures and course videos.

[Post production](https://line-21.com/services/post-production)

## Further reading

- [Keeping human captioners in control](https://line-21.com/blog/2026-05-28-keeping-human-captioners-in-control)
- [7 human CART providers and platforms compared](https://line-21.com/blog/2026-08-03-7-human-cart-providers-and-platforms-compared)
- [Accessible live captions: talent and technology](https://line-21.com/blog/talent-and-technology)

Talk to us: [contact page](https://line-21.com/contact) or hello@line-21.com.