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Auditory Evaluation of Sounds Radiated from a Vibrating Plate with Various Viscoelastic Boundary Conditions

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This study combines a vibroacoustic analysis and an auditory evaluation of sounds radiated from a thin plate with various boundary conditions. In a first experiment, the boundary conditions of the plate are considered as uniform viscoelastic ones. The vibroacoustic behavior of this kind of structure has been investigated by different researchers. The different studies have emphasized the strong influence of the boundary conditions on the vibroacoustic response of the plate. However, their influence on auditory perception is not known and far from obvious. A second experiment is carried out for an application by considering the example of a pane of glass with nonuniform viscoelastic boundary conditions, made of various joints and blocks positioned between the glass and its frame. In both cases the vibrating plate is modeled using the finite element method and artificial stimuli are generated using a sound synthesis technique. Stimuli are submitted to a panel of subjects who are asked to give preference and dissimilarity judgments. The results of the auditory evaluation are then coupled with the results of the physical analysis of the plate response in order to provide further information in terms of structural design recommendations.
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Document Type: Research Article

Publication date: May 1, 2008

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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