Abstract
Responses of a mechanical model of the peripheral auditory system are calculated for two-tone stimuli with primary frequencies chosen so that the frequency of the cubic difference tone (2f1-f2) is maintained constant for all pairs used. The comprehensive model explicitly includes linear characterizations of the earphone driver, acoustic coupler, and middle ear, and a passive cochlear model with nonlinear damping of the cochlear partition motion. The amplitude and phase plots of the (2f1-f2) distortion signal, determined both in the ear canal and at the (2f1-f2) characteristic place, show rapid variations with f1, and quite different patterns depending on the stimulus level. These plots, as well as plots showing the spatial distribution of primary and distortion signals along the cochlea for six selected f1 values, are interpretable as showing interactions between multiple propagating waves at the distortion product frequency.
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References
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© 1986 Springer-Verlag Berlin Heidelberg
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Matthews, J.W., Molnar, C.E. (1986). Modeling Intracochlear and Ear Canal Distortion Product (2f1–f2). In: Allen, J.B., Hall, J.L., Hubbard, A.E., Neely, S.T., Tubis, A. (eds) Peripheral Auditory Mechanisms. Lecture Notes in Biomathematics, vol 64. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-50038-1_32
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DOI: https://doi.org/10.1007/978-3-642-50038-1_32
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