Definition of the Opus Audio Codec
RFC 6716, “Definition of the Opus Audio Codec”, is a Proposed Standard document published in September 2012 by JM. Valin, K. Vos, T. Terriberry. It has since been updated by RFC 8251. The canonical text is published by the RFC Editor.
Abstract
This document defines the Opus interactive speech and audio codec. Opus is designed to handle a wide range of interactive audio applications, including Voice over IP, videoconferencing, in-game chat, and even live, distributed music performances. It scales from low bitrate narrowband speech at 6 kbit/s to very high quality stereo music at 510 kbit/s. Opus uses both Linear Prediction (LP) and the Modified Discrete Cosine Transform (MDCT) to achieve good compression of both speech and music. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 6716 is hosted at rfc-editor.org. Available in TXT,HTML.
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