Introduction to live stream captions
Learn about Timbra and platform support
Timbra uses AI to transcribe, translate, and publish captions directly into video players, fully synchronised with stream audio. Timbra also supports in-room captions.
Language support & features
Timbra supports 50+ source languages and simultaneous translation into 250 languages. It features termbases, custom dictionaries, formality settings, audio events, and full control over visibility of captions.
How it works
Timbra for live streams can use HLS live streams as a source. Using HLS’s built-in buffer, it produces captions just in time for the end user. Captions can be added to the video using a player plugin, our HLS integration, or via a transcript widget. You can also use our API to receive captions.

Platform support
We support streams from major providers like Brightcove, AWS MediaPackage and Mux.
CMS | |||
Brightcove | |||
Mux | |||
AWS MediaPackage | N/A | N/A | |
Cloudflare Stream | ✖︎ | ✖︎ | |
Wowza Cloud | ✖︎ | ✖︎ | |
THEOplayer | ✖︎ | ✖︎ | |
Kaltura |
Player support
To display captions to your viewers, we support plugins for Brightcove player, Video.js and THEOplayer. You can also integrate captions into the HLS stream or receive the captions via our API.
Brightcove Player | ||
Video.js | ||
THEOplayer | ||
HLS.js | ||
Plyr (with HLS.js) | ||
Mux player | N/A | |
Safari native HLS | ✔︎ | |
Cloudflare player | ✖︎ | N/A |
Bitmovin player | ✖︎ | |
Wowza Flowplayer | ||
iOS AVPlayer | N/A | |
VLC player | N/A |