The method described in this paper provides a scheme for encoding multichannel audio signals representing a spatial auditory scene based on human sound perception in space. It relies on a psychoacoustic model based on measures of minimum audible angles (MAA) in the presence of distracting sound sources. A compression gain is obtained by truncating the order of representation of the auditory scene in the Higher-Order Ambisonics (HOA) domain according to the psychoacoustic model. Numeric simulations were conducted in order to link the error of representation of the field with an angular distortion of the apparent direction of the sound sources.

Authors: Daniel, Adrien; Nicol, Rozenn; McAdams, Stephen
Affiliations: CIRMMT, Schulich School of Music, McGill University, Montreal, Quebec, Canada; Orange Labs, Lannion, France(See document for exact affiliation information.)
AES Conference: 40th International Conference: Spatial Audio: Sense the Sound of Space (October 2010)
Paper Number: 5-3
Publication Date: October 8, 2010
Subject: Spatial Audio: Signal Processing and Coding

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