opus: opus (interactive audio codec) opus: opus: Opus is a totally open, royalty-free, highly versatile audio codec. opus: Opus is unmatched for interactive speech and music transmission over opus: the Internet, but is also intended for storage and streaming opus: applications. opus: It is standardized by the Internet Engineering Task Force (IETF) opus: as RFC 6716 which incorporated technology from Skype's SILK codec opus: and Xiph.Org's CELT codec. opus: opus: opus home: http://opus-codec.org/