Problèmes de rayonnement en acoustique du bâtiment
Experience, supported by theory, shows that the amount of energy radiated into a room (and, therefore, the ways of penetration of outside noise) cannot be deduced from the knowledge of the mean amplitude of vibration of the partition. In fact, flexural waves in a partition do not radiate unless their velocity be greater than that of sound in air; the “radiation index” of a partition can thus be widely different for forced and for free vibrations. A theory of the suspended ceiling is attempted, and some observations explained. Finally it is shown that transient phenomena may have peculiarities not found in the steady-state, and some relevant experiments are discussed.
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Document Type: Research Article
Publication date: January 1, 1952
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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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