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Non-Linearities in Masking Patterns of Pure Tones

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Masked thresholds of test-tones at frequencies f T are determined as a function of the SPL L M of a pure tone masker at frequencies f M. In the case of f T > f M the test-tone amplitude increases more than proportional relative to the masker amplitude in a limited range of 40 dB sensation level (rise factor ΔL TL M = 2.5). An increase less than proportional is observed in the case of f T < f M (0.3 < ΔL TL M < 0.8). The important parameter proves to be the critical band difference Δz = z Tz M, almost independent of the absolute frequency range. The results are rearranged and discussed in terms of masking patterns, paying regard to the distinct interindividual differences in the case of f T > f M.
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Document Type: Research Article

Publication date: February 1, 1977

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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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