Opus is a lossy audio coding format developed by the Xiph.Org Foundation and standardized by the Internet Engineering Task Force, designed to efficiently code speech and general audio in a single format, ...

Who uses Opus codec?

Opus is widely used as the voice codec in WhatsApp, which has over 1.5 billion users worldwide. WhatsApp uses Opus at 8–16 kHz sampling rates, with the Real-time Transport Protocol (RTP). The PlayStation 4 video game console also uses the CELT/Opus codec for its PlayStation Network system party chat.

Why Opus codec is used?

Opus matters because it lets developers focus on creating a high quality user experience and not having to worry about codec incompatibilities and licensing issues. Opus matters because it lets developers easily create applications with high quality audio.