Handbook of Vowels and Vowel Disorders
Handbook of Vowels and Vowel Disorders

Author: Karen Pollock

Publisher: Psychology Press

Published: 2013-05-07

Total Pages: 495

ISBN-13: 1136246843

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In the general study of speech and phonetics, vowels have stood in second place to consonants. But what vowels are, how they differ from one another, how they vary among speakers, and how they are subject to disorder, are questions that require a closer examination. This Handbook presents a comprehensive, cogent, and up-to-date analysis of the vowel, including its typical development in children's speech, description by perceptual and instrumental methods, cross-linguistic and sociolinguistic aspects, and disorders of its production and use. It approaches the problems of vowel production and perception from the viewpoints of physiology, physics, psychology, linguistics, phonetics, phonology, and speech-language pathology. The chapters are logically complementary, and the major sections of the book are like key dimensions of understanding, each adding a perspective and base of knowledge on vowels. The sum total of the chapters is a synthesis of information on vowels that has no precedent.

Modeling Sensorineural Hearing Loss
Modeling Sensorineural Hearing Loss

Author: Walt Jesteadt

Publisher: Routledge

Published: 2019-01-04

Total Pages: 515

ISBN-13: 1317729382

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A recent study indicates that 20 million people in the United States have significant sensorineural hearing loss. Approximately 95% of those people have partial losses, with varying degrees of residual hearing. These percentages are similar in other developed countries. What changes in the function of the cochlea or inner ear cause such losses? What does the world sound like to the 19 million people with residual hearing? How should we transform sounds to correct for the hearing loss and maximize restoration of normal hearing? Answers to such questions require detailed models of the way that sounds are processed by the nervous system, both for listeners with normal hearing and for those with sensorineural hearing loss. This book contains chapters describing the work of 25 different research groups. A great deal of research in recent years has been aimed at obtaining a better physiological description of the altered processes that cause sensorineural hearing loss and a better understanding of transformations that occur in the perception of those sounds that are sufficiently intense that they can still be heard. Efforts to understand these changes in function have lead to a better understanding of normal function as well. This research has been based on rigorous mathematical models, computer simulations of mechanical and physiological processes, and signal processing simulations of the altered perceptual experience of listeners with sensorineural hearing loss. This book provides examples of all these approaches to modeling sensorineural hearing loss and a summary of the latest research in the field.