YouTube Live gains automatic captions, chat replay and more

YouTube today announced several new features designed to improve the live streaming experience for both creators and viewers. The most notable additions include the ability to play back a live chat after the live stream ends, and the launch of live automatic captions on videos.

YouTube began offering automatic captioning back in 2009, and has since added captions to a billion videos, the company says. Live captioning a video in real-time is a bit more complicated, but advancements in speech recognition technology are making features like this possible. (Similarly, a new startup launched an app called Otter today, that live transcribes meeting and conversations – also thanks to advancements in voice technologies.)

YouTube says it’s leveraging its live automatic speech recognition (LASR) technology to serve captions on live streams when professionally provided captions aren’t available. LASR-powered captions won’t be perfect but the error rates and…

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