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Acoustic design of ordinary rooms using absorbers and diffusers

Arvidsson, Emma LU ; Hagberg, Delphine Bard LU ; Nilsson, Erling LU and Karlsson, Ola (2020) 49th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2020 In Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020
Abstract

With different activities in a room, room acoustic requirements differ and when the acoustic requirements are different, acoustic treatment must be adapted. This study focuses on room acoustics in ordinary public rooms such as classrooms and offices. By tradition the acoustic treatment in these rooms is an absorbent ceiling. Experiments have been carried out in a classroom where the baseline in the acoustic treatment was a highly absorptive acoustic ceiling. This treatment has then been combined with different configurations of diffusers and wall absorbers where the coverage and pattern of the different treatments has been tested to evaluate their effect on the room acoustic parameters. Furthermore, several configurations with different... (More)

With different activities in a room, room acoustic requirements differ and when the acoustic requirements are different, acoustic treatment must be adapted. This study focuses on room acoustics in ordinary public rooms such as classrooms and offices. By tradition the acoustic treatment in these rooms is an absorbent ceiling. Experiments have been carried out in a classroom where the baseline in the acoustic treatment was a highly absorptive acoustic ceiling. This treatment has then been combined with different configurations of diffusers and wall absorbers where the coverage and pattern of the different treatments has been tested to evaluate their effect on the room acoustic parameters. Furthermore, several configurations with different diffuser directionality have been evaluated. The room acoustic parameters reverberation time, speech clarity and sound strength were assessed. The results show a clear correspondence in the room acoustic parameters for the different treatments used, as well as a frequency dependence. Here we discuss the interpretation of these results and how this new information can be used to obtain the room acoustic requirements for a specific activity.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020
series title
Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020
editor
Jeon, Jin Yong
publisher
Korean Society of Noise and Vibration Engineering
conference name
49th International Congress and Exposition on Noise Control Engineering, INTER-NOISE 2020
conference location
Seoul, Korea, Republic of
conference dates
2020-08-23 - 2020-08-26
external identifiers
  • scopus:85101321035
ISBN
9788994021362
language
English
LU publication?
yes
id
ba589dbf-350f-4515-a93e-7da1223089f0
alternative location
https://www.ingentaconnect.com/content/ince/incecp/2020/00000261/00000006/art00050
date added to LUP
2021-03-11 12:09:24
date last changed
2022-04-19 05:06:58
@inproceedings{ba589dbf-350f-4515-a93e-7da1223089f0,
  abstract     = {{<p>With different activities in a room, room acoustic requirements differ and when the acoustic requirements are different, acoustic treatment must be adapted. This study focuses on room acoustics in ordinary public rooms such as classrooms and offices. By tradition the acoustic treatment in these rooms is an absorbent ceiling. Experiments have been carried out in a classroom where the baseline in the acoustic treatment was a highly absorptive acoustic ceiling. This treatment has then been combined with different configurations of diffusers and wall absorbers where the coverage and pattern of the different treatments has been tested to evaluate their effect on the room acoustic parameters. Furthermore, several configurations with different diffuser directionality have been evaluated. The room acoustic parameters reverberation time, speech clarity and sound strength were assessed. The results show a clear correspondence in the room acoustic parameters for the different treatments used, as well as a frequency dependence. Here we discuss the interpretation of these results and how this new information can be used to obtain the room acoustic requirements for a specific activity.</p>}},
  author       = {{Arvidsson, Emma and Hagberg, Delphine Bard and Nilsson, Erling and Karlsson, Ola}},
  booktitle    = {{Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020}},
  editor       = {{Jeon, Jin Yong}},
  isbn         = {{9788994021362}},
  language     = {{eng}},
  publisher    = {{Korean Society of Noise and Vibration Engineering}},
  series       = {{Proceedings of 2020 International Congress on Noise Control Engineering, INTER-NOISE 2020}},
  title        = {{Acoustic design of ordinary rooms using absorbers and diffusers}},
  url          = {{https://www.ingentaconnect.com/content/ince/incecp/2020/00000261/00000006/art00050}},
  year         = {{2020}},
}