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Die besondere Lästigkeit schwankender Schallsignale — eine experimentelle Untersuchung

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Trying to find ways to more comprehensive noise evaluations we checked the influence of sound level variations on individual noise perceptions.

For this purpose test persons were required to adjust sine-modulated white noise to “constant” noise signals.

We learned from the results that sound level variations are perceived to be much more annoying (up to 11 dB in L eq) than constant sounds and depending strongly on modulation frequency. So a comprehensive noise rating procedure should observe this effect.


Zum Zwecke umfassender Lärmbewertung wird der Einfluß periodischer Schallschwankungen auf das Lärmempfinden untersucht. Dabei werden sin-modulierte und ,,konstante“ Rauschsignale miteinander verglichen.

Die Ergebnisse zeigen, daß Schallschwankungen deutlich lästiger empfunden werden (bis zu 11 dB beim L eq) als konstante Geräusche - bei erheblichem Einfluß der Schwankungsfrequenz.

Es empfiehlt sich deshalb, diesen Effekt in die Lärmbewertung mit einzubeziehen.


En vue d'é1argir les possibilités d'evaluation du bruit, on a cherché à mesurer la gêne occasionnée par des fluctuations périodiques du niveau sonore. Pour cela, on a commencé par faire comparer aux sujets testés un bruit blanc à niveau constant et un bruit blanc modulé sinusoïdalement. Le résultat essentiel obtenu est que les fluctuations sont ressenties comme un accroissement de gêne; cet accroissement dépend fortement de la fréquence de modulation du bruit et peut aller jusqu'a 11 dB du niveau L eq. On en conclut qu'il est très important de tenir compte de cet effet quand il s'agit d'estimer des bruits fluctuants.
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Document Type: Research Article

Publication date: March 1, 1986

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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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