Quantification of the absorption and scattering effects of diffusers in a room with absorbent ceiling
(2021) In Buildings 11(12).- Abstract
In ordinary public rooms, such as classrooms and offices, an absorbent ceiling is the typical first acoustic action. This treatment provides a good acoustic baseline. However, an improvement of specific room acoustic parameters, operating for specific frequencies, can be needed. It has been seen that diffusing elements can be effective additional treatment. In order to choose the right design, placement, and quantity of diffusers, a model to estimate the effect on the acoustics is necessary. This study evaluated whether an SEA model could be used for that purpose, particularly for the cases where diffusers are used in combination with an absorbent ceiling. It was investigated whether the model could handle different quantities of... (More)
In ordinary public rooms, such as classrooms and offices, an absorbent ceiling is the typical first acoustic action. This treatment provides a good acoustic baseline. However, an improvement of specific room acoustic parameters, operating for specific frequencies, can be needed. It has been seen that diffusing elements can be effective additional treatment. In order to choose the right design, placement, and quantity of diffusers, a model to estimate the effect on the acoustics is necessary. This study evaluated whether an SEA model could be used for that purpose, particularly for the cases where diffusers are used in combination with an absorbent ceiling. It was investigated whether the model could handle different quantities of diffusing elements, varied diffusion characteristics, and varied installation patterns. It was found that the model was sensitive to these changes, given that the output from the model in terms of acoustic properties will be reflected by the change of diffuser configuration design. It was also seen that the absorption and scattering of the diffusers could be quantified in a laboratory environment: a reverberation chamber. Through the SEA model, these quantities could be transformed to a full-scale room for estimation of the room acoustic parameters.
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- author
- Arvidsson, Emma LU ; Nilsson, Erling ; Bard Hagberg, Delphine LU and Karlsson, Ola J.I.
- organization
- publishing date
- 2021-12-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Absorbers, Diffusers, Room acoustic design, Room acoustic parameters, Scattering
- in
- Buildings
- volume
- 11
- issue
- 12
- article number
- 612
- publisher
- MDPI AG
- external identifiers
-
- scopus:85121613681
- ISSN
- 2075-5309
- DOI
- 10.3390/buildings11120612
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
- id
- 7fc7d937-066e-4ebf-9d45-c7fa3ebf3fab
- date added to LUP
- 2022-02-22 10:16:48
- date last changed
- 2022-04-25 06:10:57
@article{7fc7d937-066e-4ebf-9d45-c7fa3ebf3fab,
abstract = {{<p>In ordinary public rooms, such as classrooms and offices, an absorbent ceiling is the typical first acoustic action. This treatment provides a good acoustic baseline. However, an improvement of specific room acoustic parameters, operating for specific frequencies, can be needed. It has been seen that diffusing elements can be effective additional treatment. In order to choose the right design, placement, and quantity of diffusers, a model to estimate the effect on the acoustics is necessary. This study evaluated whether an SEA model could be used for that purpose, particularly for the cases where diffusers are used in combination with an absorbent ceiling. It was investigated whether the model could handle different quantities of diffusing elements, varied diffusion characteristics, and varied installation patterns. It was found that the model was sensitive to these changes, given that the output from the model in terms of acoustic properties will be reflected by the change of diffuser configuration design. It was also seen that the absorption and scattering of the diffusers could be quantified in a laboratory environment: a reverberation chamber. Through the SEA model, these quantities could be transformed to a full-scale room for estimation of the room acoustic parameters.</p>}},
author = {{Arvidsson, Emma and Nilsson, Erling and Bard Hagberg, Delphine and Karlsson, Ola J.I.}},
issn = {{2075-5309}},
keywords = {{Absorbers; Diffusers; Room acoustic design; Room acoustic parameters; Scattering}},
language = {{eng}},
month = {{12}},
number = {{12}},
publisher = {{MDPI AG}},
series = {{Buildings}},
title = {{Quantification of the absorption and scattering effects of diffusers in a room with absorbent ceiling}},
url = {{http://dx.doi.org/10.3390/buildings11120612}},
doi = {{10.3390/buildings11120612}},
volume = {{11}},
year = {{2021}},
}