Optische Mo deliver suche zur stationdren Diffusität in Hallräumen
The dependence of the diffusity of a stationary sound field in a room on the geometry and the reflective properties of the walls was studied for the case of very high frequencies with an optical analogue. Using a directional photocell the directional diffusity was measured in dependence on the ground plan, the position of the light source and the reflective properties of the walls. It follows that in order to produce high directional diffusity with specularly reflecting walls a slight departure from the rectangular form could be an advantage, and that it is a disadvantage to locate the source in a corner or recess. The best results were obtained with irregularly reflecting walls; in this case no considerable influence of the form of the room was found. — If a part of the wall area was absorbing a simple relation between the size of the absorbing area and the directional diffusity was only given if the rest of the walls were reflecting irregularly.
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Document Type: Research Article
Publication date: January 1, 1958
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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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