{"title":"Geometry-Dependent Performance in Sound Localization: A Study of 18-Element Microphone Arrays","authors":"L. Huang, R. Zeng","doi":"10.1134/S1063771024602450","DOIUrl":null,"url":null,"abstract":"<p>This study examines the performance of six different two-dimensional, 18-element microphone array geometries—BK, Ring, Reuleaux, Logarithmic, Triangle, and Starfish—for sound source localization. The arrays’ performances are systematically evaluated using beamforming algorithms and acoustic pressure reconstruction, focusing on key metrics such as main lobe width, side lobe magnitude, reconstruction error, and resolution quality over frequencies ranging from 0 to 3000 Hz. Additionally, the study investigates the adaptability of these configurations at various distances and explores their frequency-dependent behavior. The results indicate that array geometry substantially impacts localization accuracy, with the Starfish configuration demonstrating superior overall performance, exhibiting the narrowest main lobe width, highest main lobe amplitude, lowest reconstruction error, and consistently high resolution. Thus, the Starfish configuration is recommended as optimal for effective sound source localization applications<i>.</i></p>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 2","pages":"135 - 143"},"PeriodicalIF":1.2000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acoustical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063771024602450","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This study examines the performance of six different two-dimensional, 18-element microphone array geometries—BK, Ring, Reuleaux, Logarithmic, Triangle, and Starfish—for sound source localization. The arrays’ performances are systematically evaluated using beamforming algorithms and acoustic pressure reconstruction, focusing on key metrics such as main lobe width, side lobe magnitude, reconstruction error, and resolution quality over frequencies ranging from 0 to 3000 Hz. Additionally, the study investigates the adaptability of these configurations at various distances and explores their frequency-dependent behavior. The results indicate that array geometry substantially impacts localization accuracy, with the Starfish configuration demonstrating superior overall performance, exhibiting the narrowest main lobe width, highest main lobe amplitude, lowest reconstruction error, and consistently high resolution. Thus, the Starfish configuration is recommended as optimal for effective sound source localization applications.
期刊介绍：
Acoustical Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It covers theoretical and experimental aspects of basic and applied acoustics: classical problems of linear acoustics and wave theory; nonlinear acoustics; physical acoustics; ocean acoustics and hydroacoustics; atmospheric and aeroacoustics; acoustics of structurally inhomogeneous solids; geological acoustics; acoustical ecology, noise and vibration; chamber acoustics, musical acoustics; acoustic signals processing, computer simulations; acoustics of living systems, biomedical acoustics; physical principles of engineering acoustics. The journal publishes critical reviews, original articles, short communications, and letters to the editor. It covers theoretical and experimental aspects of basic and applied acoustics. The journal welcomes manuscripts from all countries in the English or Russian language.
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