Active control of broadband sound through the open aperture of a full-sized domestic window

Abstract Shutting the window is usually the last resort in mitigating environmental noise, at the expense of natural ventilation. We describe an active sound control system fitted onto the opening of the domestic window that attenuates the incident sound, achieving a global reduction in the room int...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Bhan Lam, Dongyuan Shi, Woon-Seng Gan, Stephen J. Elliott, Masaharu Nishimura
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/f2aa3d0ae748479fb49bee88be160ce6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:f2aa3d0ae748479fb49bee88be160ce6
record_format	dspace
spelling	oai:doaj.org-article:f2aa3d0ae748479fb49bee88be160ce62021-12-02T15:39:49ZActive control of broadband sound through the open aperture of a full-sized domestic window10.1038/s41598-020-66563-z2045-2322https://doaj.org/article/f2aa3d0ae748479fb49bee88be160ce62020-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66563-zhttps://doaj.org/toc/2045-2322Abstract Shutting the window is usually the last resort in mitigating environmental noise, at the expense of natural ventilation. We describe an active sound control system fitted onto the opening of the domestic window that attenuates the incident sound, achieving a global reduction in the room interior while maintaining natural ventilation. The incident sound is actively attenuated by an array of control modules (a small loudspeaker) distributed optimally across the aperture. A single reference microphone provides advance information for the controller to compute the anti-noise signal input to the loudspeakers in real-time. A numerical analysis revealed that the maximum active attenuation potential outperforms the perfect acoustic insulation provided by a fully shut single-glazed window in ideal conditions. To determine the real-world performance of such an active control system, an experimental system is realized in the aperture of a full-sized window installed on a mockup room. Up to 10-dB reduction in energy-averaged sound pressure level was achieved by the active control system in the presence of a recorded real-world broadband noise. However, attenuation in the low-frequency range and its maximum power output is limited by the size of the loudspeakers.Bhan LamDongyuan ShiWoon-Seng GanStephen J. ElliottMasaharu NishimuraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bhan Lam Dongyuan Shi Woon-Seng Gan Stephen J. Elliott Masaharu Nishimura Active control of broadband sound through the open aperture of a full-sized domestic window
description	Abstract Shutting the window is usually the last resort in mitigating environmental noise, at the expense of natural ventilation. We describe an active sound control system fitted onto the opening of the domestic window that attenuates the incident sound, achieving a global reduction in the room interior while maintaining natural ventilation. The incident sound is actively attenuated by an array of control modules (a small loudspeaker) distributed optimally across the aperture. A single reference microphone provides advance information for the controller to compute the anti-noise signal input to the loudspeakers in real-time. A numerical analysis revealed that the maximum active attenuation potential outperforms the perfect acoustic insulation provided by a fully shut single-glazed window in ideal conditions. To determine the real-world performance of such an active control system, an experimental system is realized in the aperture of a full-sized window installed on a mockup room. Up to 10-dB reduction in energy-averaged sound pressure level was achieved by the active control system in the presence of a recorded real-world broadband noise. However, attenuation in the low-frequency range and its maximum power output is limited by the size of the loudspeakers.
format	article
author	Bhan Lam Dongyuan Shi Woon-Seng Gan Stephen J. Elliott Masaharu Nishimura
author_facet	Bhan Lam Dongyuan Shi Woon-Seng Gan Stephen J. Elliott Masaharu Nishimura
author_sort	Bhan Lam
title	Active control of broadband sound through the open aperture of a full-sized domestic window
title_short	Active control of broadband sound through the open aperture of a full-sized domestic window
title_full	Active control of broadband sound through the open aperture of a full-sized domestic window
title_fullStr	Active control of broadband sound through the open aperture of a full-sized domestic window
title_full_unstemmed	Active control of broadband sound through the open aperture of a full-sized domestic window
title_sort	active control of broadband sound through the open aperture of a full-sized domestic window
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/f2aa3d0ae748479fb49bee88be160ce6
work_keys_str_mv	AT bhanlam activecontrolofbroadbandsoundthroughtheopenapertureofafullsizeddomesticwindow AT dongyuanshi activecontrolofbroadbandsoundthroughtheopenapertureofafullsizeddomesticwindow AT woonsenggan activecontrolofbroadbandsoundthroughtheopenapertureofafullsizeddomesticwindow AT stephenjelliott activecontrolofbroadbandsoundthroughtheopenapertureofafullsizeddomesticwindow AT masaharunishimura activecontrolofbroadbandsoundthroughtheopenapertureofafullsizeddomesticwindow
_version_	1718385908426735616

Active control of broadband sound through the open aperture of a full-sized domestic window

Ejemplares similares