![]() ![]() The response across auditory filters to a given stimulus, or the excitation pattern, is also discussed. The commonly-used measures of auditory filter width, psychophysical tuning curves, and the notched-noise method, are described. It begins by describing Fletcher's classical experiments on the critical band, and introduces the assumptions by which masking data can be used to derive an estimate of the auditory filter, the so-called “power spectrum model” of masking. The description of auditory physiology becomes much briefer past the level of the auditory nerve, but summarizes some basic principles, and directs the reader to other sources for more information on high-level processing.Ĭhapter 3 is devoted to topics related to frequency selectivity and masking. Different aspects of neural responses, such as rate coding, periodicity coding, and two-tone suppression are presented. Frequency selectivity and growth of response with level are covered at the level of the basilar membrane and the auditory nerve. A section on otoacoustic emissions is included. Auditory physiology is described in detail up to the level of the auditory nerve. There is also a useful section on headphones used in auditory research. The topics in acoustics include Fourier analysis and synthesis, spectra, sound levels, filtering, and the concept of linearity. ![]() Since the emphasis of the book is on perception, this chapter focuses on the relevant aspects of these areas for connecting acoustics, physiology, and perception. The first chapter covers the physical nature of sounds and the basic anatomy and physiology of the auditory system, to provide a foundation for the following chapters in the book. ![]()
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