Jean-Marc Valin has a B.S., M.S., and Ph.D. in Electrical Engineering from the University of Sherbrooke. He is the primary author of the Speex codec and one of the main authors of the Opus codec, both of which provide a free alternative to patented, proprietary audio codecs. He has also contributed to the Daala and AV1 video codecs. He joined the Xiph.Org Foundation in 2002, just after Speex was created. His expertise includes speech and audio coding, video coding, machine learning, echo cancellation, and other audio-related topics. He is currently employed by Amazon Web Services.