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A New Method for Global Sound Field Reproduction Based on Kirchhoff's Integral Equation

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This paper deals with a method for controlling the sound field using multiple sound sources and sensors. Methods based on Kirchhoff's integral equation are the most effective and promising ones. However, even if the sound pressure on the boundary of the region to be controlled is given, the sound field inside the boundary cannot be reproduced if the frequency of the reproduced sound coincides with one of the eigenfrequencies defined by the internal Dirichlet problem of the control region. To avoid this problem, we herein propose controlling sound intensity at some additional local points within the controlled region. The results of computer simulation showed that the sound field can be successfully reproduced by this proposed new method.
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Document Type: Research Article

Publication date: March 1, 1999

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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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