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Convention Paper

Surround Sound Panning Technique Based on a Virtual Microphone Array

Authors: Fazi, Filippo M.; Yamada, Toshiro; Kamdar, Suketu; Nelson, Philip A.; Otto, Peter

AES Convention 128 · Paper 8119 · May 2010

Abstract

A multi-channel panning technique is presented, which aims at reproducing a plane wave with an array of loudspeakers. The loudspeaker gains are computed by solving an acoustical inverse problem. The latter involves the inversion of a matrix of transfer functions between the loudspeakers and the elements of a virtual microphone array, the center of which corresponds to the location of the listener. The radius of the virtual microphone array is varied consistently with the frequency, in such a way that the transfer function matrix is independent of the frequency. As a consequence, the inverse problem is solved for one frequency only, and the loudspeaker coefficients obtained can be implemented using simple gains.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8119
Publication date
May 6, 2010
Session subject
Multichannel and Spatial Audio
Affiliation
University of California at San Diego, La Jolla, CA, USA; University of Southampton, Southampton, UK (See document for exact affiliation information.)
Type
Convention Paper