Li, Mengmeng;
Meng, Qi;
Kang, Jian;
(2022)
Sound Attenuation by Trunks in the Ground with thick Snow.
In:
Proceedings of the International Congress on Acoustics.
(pp. pp. 1-5).
International Congress on Acoustics
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Abstract
A main way for sound reduction by tree belts is to scatter sound waves by trunks while previous studies of sound absorption by trunks always contain the ground effects. This study aims to examine the difference of reverberation time in different kinds of tree belts through eliminating the influence from ground effect. In order to estimate the scattering of sound waves by trunks, this study investigates sound (Impulse sound) attenuation by three woodlands with same tree species and one woodland with mixed species in the ground with thick snow. The effect of receiver distance from the sound source was also investigated (5 m,10 m and 20m). The results showed that reverberation time can be used to describe the sound propagation over snow cover through tree belts. The reverberation time in different kinds of forests is different, but the variation shows a similar trend with the increase of frequency. The distance between the receiver and sound source affects the reverberation time. The species with higher ability of sound scattering can be used in urban green space to reduce urban noise.
| Type: | Proceedings paper |
|---|---|
| Title: | Sound Attenuation by Trunks in the Ground with thick Snow |
| Event: | ICA 2022 - International Congress on Acoustics |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | https://ica2022korea.org/sub01_01.php# |
| Language: | English |
| Additional information: | © The Author 2023. Original content in this paper is licensed under the terms of the Creative Commons Attribution-NonCommercial 3.0 Unported (https://www.creativecommons.org/licenses/by-nc/3.0/deed.en). |
| 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-pp.ucl.ac.uk/id/eprint/10172662 |
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