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Re:Lyra: A New Very Low-Bitrate Codec for Speech Compression by WalterGR on Saturday February 27, 2021 @02:06AM (#26283273)
Related and recently:

Satin: Microsoft’s latest AI-powered audio codec for real-time communications (microsoft.com)

13 points by panabee 5 days ago | flag | hide | past | favorite | 2 comments

https://news.ycombinator.com/item?id=26218002

Direct link: https://techcommunity.microsoft.com/t5/microsoft-teams-blog/...

...Satin can deliver super wide band speech starting at a bitrate of 6 kbps, and full-band stereo music starting at a bitrate of 17 kbps, with progressively higher quality at higher bitrates. Satin has been designed to provide great audio quality even under high packet loss...

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