opus: opus (a codec for interactive speec and audio transmission) opus: opus: Opus is a codec for interactive speech and audio transmission over the opus: Internet. Opus can handle a wide range of interactive audio opus: applications, including Voice over IP, videoconferencing, in-game opus: chat, and even remote live music performances. It can scale from low opus: bit-rate narrowband speech to very high quality stereo music. opus: opus: opus: opus: