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Influence of absorber location in a typical dwelling layout on the attenuation of low-frequency outdoor noise

Song, Yang; Kang, Jian; (2025) Influence of absorber location in a typical dwelling layout on the attenuation of low-frequency outdoor noise. Applied Acoustics , 229 , Article 110352. 10.1016/j.apacoust.2024.110352.

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Abstract

This study investigated the influence of absorber location in a typical Chinese dwelling layout consisting of one living room and two bedrooms on outdoor noise attenuation at 100–200 Hz. In-situ measurements were performed to compare the noise attenuation of the absorbers installed in different rooms, boundaries, and near-far positions towards the sound source (except for the floor). The results show that for a room with an absorber, absorption evenly distributed in the living room has considerable noise reduction for other connected rooms, but the least for itself (5 dB). With unevenly distributed absorption, the primarily attenuated position is situated in the living room or bedroom farthest from the source. For the absorbent boundary, the room whose noise reduction was most affected by the absorbent boundary (by 4 dB) remained the same as the orientation to the source changed. For the near, middle, and far absorbent positions, the middle placement in the living room tended to provide the greatest noise reduction for the entire layout (6 dB) and each room. Designing choices for a strategic absorber arrangement for precise and efficient low-frequency noise attenuation in layouts are provided.

Type: Article
Title: Influence of absorber location in a typical dwelling layout on the attenuation of low-frequency outdoor noise
DOI: 10.1016/j.apacoust.2024.110352
Publisher version: http://dx.doi.org/10.1016/j.apacoust.2024.110352
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Room acoustics; Low frequency; Noise control; Sound absorption; Dwelling; Layout
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10200484
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