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Three-dimensional wave-domain acoustic contrast control using a circular loudspeaker array
Authors
Z Han
M Wu
J Yang
Q Zhu
Publication date
1 June 2019
Publisher
'Acoustical Society of America (ASA)'
Doi
Cite
Abstract
© 2019 Acoustical Society of America. This paper proposes a three-dimensional wave-domain acoustic contrast control method to reproduce a multizone sound field using a circular loudspeaker array. In this method, sound field analysis is based on spherical harmonic decomposition, and the loudspeaker weights are obtained by maximizing the acoustic energy contrast between the predefined bright zone and dark zone. Simulation results show that the proposed method provides good multizone separation performance over a large spatial region and requires lower-order spherical harmonics, resulting in a much lower number of microphones required to measure the acoustic transfer functions
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Last time updated on 20/04/2021