Ten questions concerning active noise control in the built environment

Urban noise pollution is an omnipresent but often neglected threat to public health that must be addressed urgently. Passive noise control measures, which are less effective at reducing low-frequency noise and are often bulky and may impede airflow. As evidenced in automobiles, active control of cab...

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Main Authors: Lam, Bhan, Gan, Woon-Seng, Shi, Dongyuan, Nishimura, Masaharu, Elliott, Stephen
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2021
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Online Access:https://hdl.handle.net/10356/151258
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1512582021-06-10T05:18:53Z Ten questions concerning active noise control in the built environment Lam, Bhan Gan, Woon-Seng Shi, Dongyuan Nishimura, Masaharu Elliott, Stephen School of Electrical and Electronic Engineering Smart Nation Translational Laboratory Engineering::Electrical and electronic engineering Natural Ventilation Active and Passive Noise Control Noise Control Applications Urban noise pollution is an omnipresent but often neglected threat to public health that must be addressed urgently. Passive noise control measures, which are less effective at reducing low-frequency noise and are often bulky and may impede airflow. As evidenced in automobiles, active control of cabin noise has resulted in lighter cars due to reduced passive insulation. Despite its long history and recent popularisation by consumer head- phones, the implementation of active noise control in the built environment is still rare. To date, active noise control (ANC) has been demonstrated, at source, in construction machines and, in the transmission path, in noise barriers. Recent demand for naturally-ventilated buildings has also spurred the development of active control solutions at the receiving end, such as on windows. The ten questions aim to demystify the principles of ANC and highlight areas in which environmental noise can be actively mitigated. Since the implementation of active control in the built environment usually involves multiple stakeholders, operational concerns are addressed. To conclude, research gaps are identified that would enable increased adoption of ANC in the built environment. There is also renewed interest in applying intelligent ANC to tackle environmentally complex applications, such as varying noise levels in the earcup of ANC headphones, particularly with the advent of the low-cost, low-power, highly-efficient embedded electronics; advancing speaker technology; and new impetus from digital signal processing and artificial intelligence Algorithms. Ministry of National Development (MND) National Research Foundation (NRF) Published version This research is supported by the Singapore Ministry of National Development and the National Research Foundation, Prime Minister’s Office under the Cities of Tomorrow (CoT) Research Programme (CoT Award No. COT-V4-2019-1). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not reflect the views of the Singapore Ministry of National Development and National Research Foundation, Prime Minister’s Office, Singapore. 2021-06-10T05:18:53Z 2021-06-10T05:18:53Z 2021 Journal Article Lam, B., Gan, W., Shi, D., Nishimura, M. & Elliott, S. (2021). Ten questions concerning active noise control in the built environment. Building and Environment, 200, 107928-. https://dx.doi.org/10.1016/j.buildenv.2021.107928 0360-1323 https://hdl.handle.net/10356/151258 10.1016/j.buildenv.2021.107928 200 107928 en CoT-V4-2019-1 Building and Environment © 2021 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Natural Ventilation
Active and Passive Noise Control
Noise Control Applications
spellingShingle Engineering::Electrical and electronic engineering
Natural Ventilation
Active and Passive Noise Control
Noise Control Applications
Lam, Bhan
Gan, Woon-Seng
Shi, Dongyuan
Nishimura, Masaharu
Elliott, Stephen
Ten questions concerning active noise control in the built environment
description Urban noise pollution is an omnipresent but often neglected threat to public health that must be addressed urgently. Passive noise control measures, which are less effective at reducing low-frequency noise and are often bulky and may impede airflow. As evidenced in automobiles, active control of cabin noise has resulted in lighter cars due to reduced passive insulation. Despite its long history and recent popularisation by consumer head- phones, the implementation of active noise control in the built environment is still rare. To date, active noise control (ANC) has been demonstrated, at source, in construction machines and, in the transmission path, in noise barriers. Recent demand for naturally-ventilated buildings has also spurred the development of active control solutions at the receiving end, such as on windows. The ten questions aim to demystify the principles of ANC and highlight areas in which environmental noise can be actively mitigated. Since the implementation of active control in the built environment usually involves multiple stakeholders, operational concerns are addressed. To conclude, research gaps are identified that would enable increased adoption of ANC in the built environment. There is also renewed interest in applying intelligent ANC to tackle environmentally complex applications, such as varying noise levels in the earcup of ANC headphones, particularly with the advent of the low-cost, low-power, highly-efficient embedded electronics; advancing speaker technology; and new impetus from digital signal processing and artificial intelligence Algorithms.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lam, Bhan
Gan, Woon-Seng
Shi, Dongyuan
Nishimura, Masaharu
Elliott, Stephen
format Article
author Lam, Bhan
Gan, Woon-Seng
Shi, Dongyuan
Nishimura, Masaharu
Elliott, Stephen
author_sort Lam, Bhan
title Ten questions concerning active noise control in the built environment
title_short Ten questions concerning active noise control in the built environment
title_full Ten questions concerning active noise control in the built environment
title_fullStr Ten questions concerning active noise control in the built environment
title_full_unstemmed Ten questions concerning active noise control in the built environment
title_sort ten questions concerning active noise control in the built environment
publishDate 2021
url https://hdl.handle.net/10356/151258
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