The IETF recently standardized the Opus codec as RFC6716. Opus targets a wide range of real-time Internet applications by combining a linear prediction coder with a transform coder. We describe the transform coder, with particular attention to the psychoacoustic knowledge built into the format. The result out-performs existing audio codecs that don't operate under real-time constraints.

Authors: Valin, Jean-Marc; Maxwell, Gregory; Terriberry, Timothy B.; Vos, Koen
Affiliations: Mozilla Corporation, Mountain View, CA, USA; Mozilla Corporation; vocTone, San Francisco, CA, USA(See document for exact affiliation information.)
AES Convention: 135 (October 2013) Paper Number: 8942
Publication Date: October 16, 2013
Subject: Signal Processing

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