opus: opus (efficient, low-latency 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. It is standardized by the Internet Engineering Task opus: Force (IETF) as RFC 6716 which incorporated technology from Skype's opus: SILK codec and Xiph.Org's CELT codec. opus: opus: Homepage: https://opus-codec.org/ opus: