Download Compression: From Cochlea to Cochlear Implants (Springer by Sid P. Bacon, Richard R. Fay, Arthur N. Popper (Editors) PDF

By Sid P. Bacon, Richard R. Fay, Arthur N. Popper (Editors)

The mechanical reaction of the basilar membrane within the cochlea performs a basic function in human listening to. This quantity discusses the most elements of cochlear compression, together with anatomy and body structure; the perceptual effects of compression in general listening to; the results of listening to loss on compression; and its functionality in listening to aids and cochlear implants. The function of compression has expanding functional value because it is included into listening to aids and cochlear implants to make amends for insufficient compression in individuals with cochlear listening to loss.

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Extra info for Compression: From Cochlea to Cochlear Implants (Springer Handbook of Auditory Research)

Sample text

As we shall see, a healthy peripheral auditory system fits a lot more information into a limited amount of output space by the selective amplification of its responses to low-level stimuli. 18 2. 2 A Brief Review of the Anatomy and Physiology of the Peripheral Auditory System The peripheral auditory system comprises the external ear, the middle ear, the cochlea, and the auditory nerve (the acoustic part of the eighth cranial nerve). The external and middle ears are primarily concerned with the efficient transmission of sound from an animal’s environment to its inner ear.

1989; Nobili and Mammano 1996; Cooper 1998). The reason that this is viewed as physiologically realistic is that the most likely correlate of the nonlinearity in the real cochlea is the displacement- 2. 7. Modeling compression as the result of a nonlinear, positive feedback system. A: positive feedback system containing 2 filters and a saturating nonlinearity. This type of system can replicate many of the response features observed in cochlear mechanics and is thought to be realistic from a physiological point of view (see text).

6. The amount of two-tone suppression that is observed depends on many factors, including both the frequency and intensity of the probe and the suppressor tones (Robles et al. 1991; Nuttall and Dolan 1993; Rhode and Cooper 1993; Cooper 1996; Cooper and Rhode 1996b; Geisler and Nuttall 1997; Rhode and Recio 2001a). In general, only probes that fall within the frequency region where compression can be observed (cf. Figs. 4) are susceptible to two-tone suppression, and the amount of suppression that can 2.

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