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