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Zur Messung der Diffusität von Schallfeldern durch Korrelation

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Theoretical studies of the correlation coefficients for sound fields in very large halls, and in halls of dimensions comparable with the separation of the microphones used for the measurement, show that such correlations do not uniquely describe the diffusive properties of such rooms, and this whether the signals arriving at the pick-up points are coherent or incoherent.

They are often characteristic of a given diffusivity but not completely so. The sensitivity of the technique of measurement becomes small especially when the diffusion is considerable. These facts are illustrated for certain special cases in a model experiment with arrays of loud-speakers, forming an octant of a sphere. There is good agreement between theory and experiment.
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Document Type: Research Article

Publication date: January 1, 1957

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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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