speex: speex (low-bitrate voice audio codec) speex: speex: Speex is a patent-free, Open Source/Free Software voice codec. Unlike speex: other codecs like MP3 and Ogg Vorbis, Speex is designed to compress speex: voice at bitrates in the 2-45 kbps range. Possible applications speex: include VoIP, internet audio streaming, archiving of speech data speex: (e.g. voice mail), and audio books. It is meant to be complementary speex: to the Ogg Vorbis codec. speex: speex: Homepage: https://www.speex.org/ speex: