On the performance investigation of distinct algorithms for room acoustics simulation

Brandão, Eric; Santos, Edna Sofia Oliveria; Melo, Viviane Suzey Gomes de; Tenenbaum, Roberto A.; Mareze, Paulo Henrique

doi:10.1016/j.apacoust.2021.108484

Cited by 10 publications

(3 citation statements)

References 22 publications

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“…The efficiency of RAVEN was highlighted for several researches. 27 –31 RAVEN is available under request for the Institute of Technical Acoustics (ITA), and I-SIMPA is an open-source software developed by Gustave Eiffel University. 32,33…”

Section: Methodsmentioning

confidence: 99%

“…The efficiency of RAVEN was highlighted for several researches. [27][28][29][30][31] RAVEN is available under request for the Institute of Technical Acoustics (ITA), and I-SIMPA is an open-source software developed by Gustave Eiffel University. 32,33 Sound absorption and scattering coefficients are shown by Tables 4 and 5, provided by Vorländer.…”

Section: Room Acoustics Simulationmentioning

confidence: 99%

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Assessing acoustical quality in university classrooms in Brazil: Measurements and simulations

Scoczynski Ribeiro,

Moreira,

Marcelo Miscovicz

et al. 2024

Building Acoustics

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The acoustic quality of learning spaces, such as classrooms, is a worldwide issue. Some countries have regulations or guidelines for these environments, which does not happen properly in Brazil. Beyond the lack of nationwide research related to classroom acoustics, Brazil has two standards with a few information related to classroom acoustics. One of them was written in 1992, having a single demand concerning an appropriate reverberation time for conference rooms at the 500 Hz frequency, without detailed requirement, in contrast to other national guidelines. Another one, updated in 2020, recommends the sound pressure levels for indoor environments, having classrooms in its list. The aim of this study is to analyze the acoustic quality of two Brazilian classrooms over a public university in the south part of Brazil. Several impulse responses were taken within the learning environments and then processed in Matlab with the ITA ToolBox. The classrooms were also modeled into RAVEN and I-SIMPA software aiming to identify different sound absorption schemes to improve their speech intelligibility. The findings showed that the classrooms had a bad acoustic environment, with a measured reverberation time of approximately [Formula: see text]. However, the simulation suggested that implementing sound absorption strategies could reduce the reverberation effects by half, bringing it closer to optimal levels. The estimated costs for implementing sound absorbers were [Formula: see text] for Classroom 01 and [Formula: see text] for Classroom 02.

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Section: Methodsmentioning

confidence: 99%

Section: Room Acoustics Simulationmentioning

confidence: 99%

Assessing acoustical quality in university classrooms in Brazil: Measurements and simulations

Scoczynski Ribeiro,

Moreira,

Marcelo Miscovicz

et al. 2024

Building Acoustics

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show abstract

“…O número de salas, configurações destas, fontes sonoras direcionais e receptores dão uma ideia do grande esforço empreendido pelos participantes nas simulações. A principal publicação relativa ao RR4 é [31] e os resultados obtidos pelo programa RAIOS 7 no certame estão reportados em Melo et al [32] e Carneiro et al [33].…”

Section: Raiosunclassified

Simulações de Acústica de Salas desenvolvidas nas universidades do Brasil

Fonseca

Tenenbaum

Torres

et al. 2021

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Simulação em acústica de salas tem um importante papel para pesquisadores e consultores do ramo. No Brasil, existem diversas iniciativas de software para essa finalidade. Logo, nesta seção, trazemos uma pequena revisão sobre o assunto, além dos software que nasceram nas universidades brasileiras, frutos de pesquisa e desenvolvimento. Embora apresentando etapas distintas de maturidade, eles têm funcionalidades sofisticadas e profissionais, são eles RAIOS, BRASS e Trem.

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Phase and Amplitude Characterization of Room Impulse Response on the Application of Varied Width Exponential Signals

Sharma,

Kumar,

Meena

2024

Lecture Notes in Electrical Engineering

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On the performance investigation of distinct algorithms for room acoustics simulation

Cited by 10 publications

References 22 publications

Assessing acoustical quality in university classrooms in Brazil: Measurements and simulations

Assessing acoustical quality in university classrooms in Brazil: Measurements and simulations

Simulações de Acústica de Salas desenvolvidas nas universidades do Brasil

Phase and Amplitude Characterization of Room Impulse Response on the Application of Varied Width Exponential Signals

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