Determination of room acoustic parameters using spherical beamforming - The example of Lisbon's Garrett Hall

Alarcao Diogo; Inacio Octavio

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Determination of room acoustic parameters using spherical beamforming - The example of Lisbon's Garrett Hall

机译：Determination of room acoustic parameters using spherical beamforming - The example of Lisbon's Garrett Hall

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This paper focus on the determination of room acoustic objective parameters using rigid sphere spherical beamforming. This determination was done through post-processing of the audio signals recorded with a 64-channel spherical acoustic camera. The work was carried out during the acoustical assessment of the Garrett Hall in the D. Maria II National Theatre in Lisbon. For comparison purposes, the assessment was complemented using standard experimental measuring techniques, according to the ISO 3382 standard, employing an omnidirectional and a figure-of-eight microphone. The obtained results show that the average-Hall's acoustic metrics obtained through spherical beamforming agree very well with the corresponding metrics as determined through the ISO 3382 procedure, except for the early lateral fraction JLF, where some differences in most octave bands is seen.(C) 2022 Elsevier Ltd. All rights reserved.

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来源
《Applied acoustics》 |2022年第4期|108734.1-108734.10|共10页
作者
Alarcao Diogo; Inacio Octavio;
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作者单位

Polytech Inst Lisbon, Lisbon Sch Mus, Mus Technol, Lisbon, Portugal;

InAcoust Engn Acust Vibracoes & Ambiente Lda, Maia, Portugal;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
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关键词
Spherical beamforming; 64-Channel acoustic camera; Room acoustics; 3D impulse responses;

Determination of room acoustic parameters using spherical beamforming - The example of Lisbon's Garrett Hall

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