NAB 2018: Telestream to unveil advanced caption insertion
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Michelle Clancy
| 17 March 2018

Telestream is prepping a one-box-solution for closed-caption encoding to multiple live streams.


The company has added full 608/708 caption insertion capability to the latest version of Lightspeed Live Stream, Telestream’s multiscreen live encoding and packaging platform for broadcasters, content aggregators and live-event production companies.

From national broadcasters to college sports, houses of worship, live event producers and the military, the broadest range of organisations need live captioning. As live video streaming over IP networks continues to grow exponentially, the need for live closed captions within multiscreen applications is becoming critical.

Today, virtually all IP caption insertion systems are cloud-based, requiring content to be moved first to the cloud, there captioned, then re-encoded and re-streamed for delivery. Telestream’s live captioning solution with Lightspeed Live Stream eliminates restreaming, instead encoding the live captions within the original stream.

The platform is housed in a single 1RU enclosure.

“Whether it’s a commercial broadcaster streaming or live captions for Facebook, YouTube or any other streaming platform, we have developed functionality in Lightspeed Live Stream that absolutely simplifies live-stream captioning,” said Scott Murray, vice president of product management at Telestream. “Uniquely, our solution involves no re-encoding or re-streaming so there is zero possibility of blips and glitches being introduced into the streamed content.”

In addition to the new live captioning capabilities, Lightspeed Live Stream lets users add time delay to the stream for synchronisation purposes, and they can use Lightspeed Live Stream to route captured recordings to Telestream’s Vantage Media Processing Platform for further enhancement.