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Convention Paper

Conditioning of the Problem of Source Array Design with Inverse Approach

Authors: Cho, Wan-Ho; Ih, Jeong-Guon

AES Convention 128 · Paper 8094 · May 2010

Abstract

An inverse approach based on the acoustical holography concept can be effectively applied to the acoustic field rendered for achieving a target sound field given as a relative response distribution of sound pressure. To implement this method, the source configuration should be determined a priori and a meaningful inverse solution of an ill-conditioned transfer matrix should be obtained. To choose efficient source positions which are almost mutually independent, the redundancy detection algorithm like the effective independence method was employed to decide the proper positions for a given number of sources. In this way, an efficient and stable filter set for a source array in controlling the sound field can be obtained. An interior domain with irregularly shaped boundaries was adopted as the target field to control for testing the suggested inverse method.

Details

Published in
AES Convention 128
AES Convention
128
Paper number
8094
Publication date
May 6, 2010
Session subject
Multichannel and Spatial Audio
Affiliation
KAIST, Daejeon, Korea; Chuo University, Bunkyoku, Tokyo, Japan (See document for exact affiliation information.)
Type
Convention Paper