Investigation of the effective aperture area of sliding and hinged doors between coupled spaces

Luizard, Paul; Katz, Brian F. G.

doi:10.1121/1.4890202

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…The linear energy decay was constructed to obtain RT = 1.8 s, which is a common value in concert halls (Beranek, 2004). The reverberation decay model used has been previously studied and validated with respect to scale model studies for a variety of coupling area sizes and configurations (Luizard & Katz, 2014).…”

Section: Methodsmentioning

confidence: 99%

Perceived suitability of reverberation in large coupled volume concert halls.

Luizard¹,

Katz²,

Guastavino³

2015

Psychomusicology: Music, Mind, and Brain

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Reverberation in coupled volume concert halls can be modified by changing the coupling surface connecting the main hall and the control chamber(s). This study aims at investigating how trained listeners evaluate subtle changes in reverberation of coupled spaces for different musical excerpts. Previous research has focused on acoustical parameters and perceptual limits in coupled volumes. The present study relies on a previously validated architectural parameter describing the sound field behavior before relating it to acoustical parameters. In a listening test, 23 participants were asked to rate the suitability of different reverberation decays for various musical samples. The stimuli were generated by convolving anechoic recordings of solo cello and timpani, choir, and symphony orchestra with impulse responses based on the statistical model of nonexponential energy decay by Cremer-Müller, with the only variable element being the coupling surface area. The linear reverberation (simple exponential) decay was rated more suitable for the symphony orchestra, whereas the coupled reverberations (double-slope decays) were rated more suitable than the linear decay for the solo instruments and choir.

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Section: Methodsmentioning

confidence: 99%

Perceived suitability of reverberation in large coupled volume concert halls.

Luizard¹,

Katz²,

Guastavino³

2015

Psychomusicology: Music, Mind, and Brain

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“…Further analysis of this has been carried out, using the marching line multiple slope analysis method [23,24]. For brevity, this analysis has been limited to the 500 Hz octave band filtered RIRs, and compares the 2020 measurements with the subset of 2015 measurements using comparable source and receiver positions to the reduced measurement zone in 2020.…”

Section: Acoustic Parametersmentioning

confidence: 99%

An Acoustic Survey of the Cathédrale Notre-Dame de Paris before and after the Fire of 2019

Katz

Weber

2020

Acoustics

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The Cathédrale Notre-Dame de Paris is amongst the most well-known worship spaces in the world. Its large volume, in combination with a relatively bare stone construction and marble floor, leads to rather long reverberation times. The cathedral suffered from a significant fire in 2019, resulting in damage primarily to the roof and vaulted ceiling. Despite the notoriety of this space, there are few examples of published data on the acoustical parameters of this space, and these data do not agree. Archived measurement recordings from 1987 were recovered and found to include several balloon bursts. In 2015, a measurement session was carried out for a virtual reality project. Comparisons between results from these two sessions show a slight but significant decrease in reverberation time (8%) in the pre-fire state. Measurements were recently carried out on the construction site, 1 year since the fire. Compared to 2015 data, the reverberation time significantly decreased (20%). This paper presents the preliminary results of these measurements, providing a documentation of the acoustics of this historic worship space both prior to and since the 2019 fire.

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“…A Razão de Absorção é a razão entre a média da absorção equivalente da sala acoplada e a média da absorção equivalente da sala principal, calculada em função de banda de frequência. WANG, 2005WANG, , 2006WANG, , 2007WANG, , 2009WANG, , 2010ERMANN, 2005aERMANN, , b, 2007JOHNSON, 2005;ESCOLANO et al, 2013;EYRING, 1931;JEONG;JOO, 2017;KATZ, 2014;MARTELLOTTA, 2009;MEISSNER, 2009;PU;QIU;WANG, 2011;XIANG et al, 2013).…”

Section: Influência Da Arquitetura No Decaimento Sonoro De Salas Acopunclassified

Características arquitetônicas e o decaimento sonoro de salas acopladas: uma revisão da literatura

Maiorino

Bertoli

2018

PARC Pesq. em Arquit. e Constr.

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Nas últimas décadas, o crescente número de salas de concerto construídas com variabilidade acústica impulsionou o estudo acústico de salas acopladas. Esta variabilidade tem sido feita de diversas formas, sendo uma delas o acoplamento de câmaras reverberantes na sala principal de espetáculos. Salas acopladas propiciam um decaimento de energia sonora diferenciado, a energia decai de forma não exponencial. As características arquitetônicas do espaço têm influência direta na formação do decaimento não exponencial de energia sonora. Os objetivos deste trabalho são identificar e analisar, na literatura, as características e parâmetros arquitetônicos propostos ao longo dos anos que influenciam a formação de curvas de decaimento de energia não exponencial em salas acopladas. O trabalho foi desenvolvido empregando a revisão sistemática da literatura (RSL), realizada em três etapas: Planejamento, Condução da Revisão e Análise de Dados. Os resultados mostraram que a combinação de três características arquitetônicas são as responsáveis pela formação de curvas de decaimento não exponencial de energia. A relação entre estas características foi sistematizada em três parâmetros arquitetônicos, a saber: a Área de Acoplamento, que é a razão entre a área de abertura de acoplamento e a área total da sala principal, a Razão de Volumes, que é a razão entre os volumes da sala acoplada e da sala principal e a Razão de Absorção, que é a razão entre a absorção equivalente da sala acoplada e da sala principal. A RSL permitiu avaliar o estado da arte sobre o assunto, identificar o período de maior interesse nas pesquisas sobre salas acopladas e observar a aplicação da teoria de salas acopladas para compreensão da acústica de igrejas e catedrais. Foi possível encontrar lacunas em pesquisas relacionadas à psicoacústica de salas acopladas e dos parâmetros arquitetônicos razão de volumes e razão de absorção além de identificar a necessidade em pesquisas de acoplamento de caixa cênica em teatros. Os resultados deste trabalho fornecem subsídios para serem empregados na elaboração de projetos acústicos de ambientes que se utilizam de salas acopladas para sua adequação acústica.

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Investigation of the effective aperture area of sliding and hinged doors between coupled spaces

Cited by 6 publications

References 16 publications

Perceived suitability of reverberation in large coupled volume concert halls.

Perceived suitability of reverberation in large coupled volume concert halls.

An Acoustic Survey of the Cathédrale Notre-Dame de Paris before and after the Fire of 2019

Características arquitetônicas e o decaimento sonoro de salas acopladas: uma revisão da literatura

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