Combinations of Amplitude and Frequency Differences in Auditory Discrimination
Several versions of a neural excitation pattern model of the peripheral auditory system lead to the implication that simultaneous amplitude and frequency discriminations should exhibit strong interactions in the presence of bandlimited masking noise. Several previous studies used signals simultaneously modulated in amplitude and frequency. Subjects were required to match two dissimilar sounds, and the results followed the predicted amplitudefrequency interactions. Calculations of the spectra of these modulated signals, and actual measurements in the laboratory, suggest a very simple interpretation of the data based on spectral similarity. We report the results of discrimination experiments which used unmodulated tones and bandlimited “maskers”, and which also should have revealed the predicted interactions. These interactions were not found, and we, therefore, conclude that the simple excitation pattern models need to be revised.
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Document Type: Research Article
Publication date: February 1, 1972
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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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