Stepwise-based optimizing approaches for arrangements of loudspeaker in multi-zone sound field reproduction

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Stepwise-based optimizing approaches for arrangements of loudspeaker in multi-zone sound field reproduction. / Zhou, Tong; Yasueda, Kazuya; Bouattour, Ghada et al.
In: Acoustical Science and Technology, Vol. 46, No. 1, 01.01.2025, p. 11-21.

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@article{a3b7c058024f4643bd3cac42f5b60a47,
title = "Stepwise-based optimizing approaches for arrangements of loudspeaker in multi-zone sound field reproduction",
abstract = "This study introduces bidirectional stepwise-based algorithms designed to optimize loudspeaker array configurations for Multizone Sound Field Reproduction systems. An initial arrangement selection method based on loudspeaker magnitude enhances the optimization process. These algorithms were validated using the Acoustic Contrast Control and Pressure Matching methods across free-field conditions and a comprehensive Room Impulse Response database including various room conditions. Comparative experiments against traditional unidirectional iterative strategies demonstrate that the proposed algorithms significantly outperform existing methods in terms of efficiency and effectiveness, especially in configurations with fewer loudspeakers. For example, in a small meeting room with 16 loudspeakers, the stepwise-based approaches achieved higher acoustic contrast and required substantially fewer iterations than conventional methods. Specifically, optimization efficiency improvements were about 55.2% and 77.8% in Acoustic Contrast Control and 36.7% and 68.6% in Pressure Matching, compared to conventional iteratively adding or removing approaches.",
keywords = "Acoustic contrast control, Loudspeaker arrangement optimization, Multi-zone sound field reproduction, Pressure matching, Stepwise, Engineering",
author = "Tong Zhou and Kazuya Yasueda and Ghada Bouattour and Anthimos Georgiadis and Akitoshi Kataoka",
note = "Publisher Copyright: {\textcopyright}2025 The Acoustical Society of Japan.",
year = "2025",
month = jan,
day = "1",
doi = "10.1250/ast.e24.56",
language = "English",
volume = "46",
pages = "11--21",
journal = "Acoustical Science and Technology",
issn = "1346-3969",
publisher = "Acoustical Society of Japan",
number = "1",

}

RIS

TY - JOUR

T1 - Stepwise-based optimizing approaches for arrangements of loudspeaker in multi-zone sound field reproduction

AU - Zhou, Tong

AU - Yasueda, Kazuya

AU - Bouattour, Ghada

AU - Georgiadis, Anthimos

AU - Kataoka, Akitoshi

N1 - Publisher Copyright: ©2025 The Acoustical Society of Japan.

PY - 2025/1/1

Y1 - 2025/1/1

N2 - This study introduces bidirectional stepwise-based algorithms designed to optimize loudspeaker array configurations for Multizone Sound Field Reproduction systems. An initial arrangement selection method based on loudspeaker magnitude enhances the optimization process. These algorithms were validated using the Acoustic Contrast Control and Pressure Matching methods across free-field conditions and a comprehensive Room Impulse Response database including various room conditions. Comparative experiments against traditional unidirectional iterative strategies demonstrate that the proposed algorithms significantly outperform existing methods in terms of efficiency and effectiveness, especially in configurations with fewer loudspeakers. For example, in a small meeting room with 16 loudspeakers, the stepwise-based approaches achieved higher acoustic contrast and required substantially fewer iterations than conventional methods. Specifically, optimization efficiency improvements were about 55.2% and 77.8% in Acoustic Contrast Control and 36.7% and 68.6% in Pressure Matching, compared to conventional iteratively adding or removing approaches.

AB - This study introduces bidirectional stepwise-based algorithms designed to optimize loudspeaker array configurations for Multizone Sound Field Reproduction systems. An initial arrangement selection method based on loudspeaker magnitude enhances the optimization process. These algorithms were validated using the Acoustic Contrast Control and Pressure Matching methods across free-field conditions and a comprehensive Room Impulse Response database including various room conditions. Comparative experiments against traditional unidirectional iterative strategies demonstrate that the proposed algorithms significantly outperform existing methods in terms of efficiency and effectiveness, especially in configurations with fewer loudspeakers. For example, in a small meeting room with 16 loudspeakers, the stepwise-based approaches achieved higher acoustic contrast and required substantially fewer iterations than conventional methods. Specifically, optimization efficiency improvements were about 55.2% and 77.8% in Acoustic Contrast Control and 36.7% and 68.6% in Pressure Matching, compared to conventional iteratively adding or removing approaches.

KW - Acoustic contrast control

KW - Loudspeaker arrangement optimization

KW - Multi-zone sound field reproduction

KW - Pressure matching

KW - Stepwise

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=85214646203&partnerID=8YFLogxK

U2 - 10.1250/ast.e24.56

DO - 10.1250/ast.e24.56

M3 - Journal articles

AN - SCOPUS:85214646203

VL - 46

SP - 11

EP - 21

JO - Acoustical Science and Technology

JF - Acoustical Science and Technology

SN - 1346-3969

IS - 1

ER -

DOI

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