# Features

Everything the Line 21 platform does for a live caption: hear the speech, check every line, carry it into other languages, and deliver it wherever your audience is.

## Features

### Speech Recognition

Real-time speech-to-text from several leading engines in over 100 languages, with the best engine recommended for each language.

[Learn more](https://line-21.com/features/speech-recognition)

### AI Proofreader

Checks every caption line against your event's context, fixing names, brands and jargon before your audience sees it.

[Learn more](https://line-21.com/features/ai-proofreader)

### Translations

Live machine translation of every caption line into many languages at once, with engines and dictionaries per language.

[Learn more](https://line-21.com/features/translations)

### AI Dubbing

Speech-to-speech interpretation that carries the speaker's voice into another language's audio, for audiences who would rather listen than read.

[Learn more](https://line-21.com/features/ai-dubbing)

### Caption Encoding

Encode CEA-608 captions into your RTMP or SRT stream and simulcast it to YouTube, Twitch, Facebook, Vimeo and more.

[Learn more](https://line-21.com/features/caption-encoding)

### HLS Streaming

Publish your video with a caption track for every language to an HLS player you can embed on your own site.

[Learn more](https://line-21.com/features/hls-streaming)

### Integrations

Show captions on a browser page, an on-screen overlay, Zoom, Microsoft Teams, YouTube and other platforms.

[Learn more](https://line-21.com/features/integrations)

### Monitor

See your inputs, AI services and every destination at a glance while the event is live.

[Learn more](https://line-21.com/features/monitor)

### Zoom App

Add automated captions and machine translations to Zoom meetings and webinars with the Line 21 app for Zoom.

[Learn more](https://line-21.com/zoom)

## Need people as well?

The platform works on its own or alongside our team. These are the services our people provide.

### Human Live Captions

Accredited stenographers and respeakers for events where every word matters.

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

### Support

Help from setup to live event support, so nothing is left to chance on the day.

[Learn more](https://line-21.com/services/support)

### Post Production

Subtitles and offline captions for recorded films, courses and training videos.

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

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