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Active control of aircraft fly-over sound transmission through an open window

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10.1016/j.apacoust.2014.02.018
 
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hdl:2117/23261

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Pàmies Gómez, TeresaMés informacióMés informacióMés informació
Romeu Garbí, JordiMés informacióMés informacióMés informació
Genesca Francitorra, Meritxell
Arcos Villamarín, RobertMés informacióMés informacióMés informació
Document typeArticle
Defense date2014-04-13
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
This paper presents an experimental work on active control of sound transmission through a restricted opening bottom hinged window. The main goal of the work is to demonstrate the feasibility of the active technique to limit the loss of attenuation due to the aperture of windows, and its application to aircraft fly-over incident noise. The experimental window is placed in an exposed façade of a dwelling close to an airport and subject to fly-by aircraft noise. The active control is configured to cancel the pressure at the aperture using a single-input single-output feedforward adaptive system. As a result, a reduction of sound transmission is achieved with low power consumption. In global terms, an increase of almost 3 dB of transmission loss (with respect to the partially opened window insulation values) in the low frequency range (below 160 Hz and according to the National Danish Method for evaluating low frequency noise) is demonstrated, which is equivalent to a reduction of 50% in the loss of insulation caused by opening the window. © 2014 Elsevier Ltd. All rights reserved.
CitationPàmies, T. [et al.]. Active control of aircraft fly-over sound transmission through an open window. "Applied acoustics", 13 Abril 2014, vol. 84, p. 116-121. 
URIhttp://hdl.handle.net/2117/23261
DOI10.1016/j.apacoust.2014.02.018
ISSN0003-682X
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0003682X14000486
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