Hearing Aids: Standards, Options, and Limitations 2nd Edition

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Like the popular first edition, this second edition of Hearing Aids stresses a fundamental but frequently overlooked truth: the process of ordering hearing aids is as important as selecting and verifying hearing aid fittings. In this revised and expanded edition, you'll find all the information you need to confidently order hearing aids, including entirely new chapters and updates that reflect the latest developments and technology advances in this fast-moving field. Packed with beneficial tables and diagrams, the text provides current and comprehensive guidelines on analyzing the different microphones, receivers, telecoils, and amplifiers; problems of distortion, noise, and the central nervous system; and the effect of these problems on hearing aid function. Key Features: Four new chapters on the newest advances in the field, including non-linear signal processing, advances in microphone technology, digital signal processing and assistive listening devices Valuable strategies on increasing user satisfaction--with pointers on optimizing amplification while minimizing distortion and background noise More than 300 helpful diagrams and tables describe performance levels of the various selections State-of-the-art information from leading experts in the field This is the comprehensive text/reference all graduate students and dispensing audiologists need to stay up-to-date on the theory and clinical applications of new hearing aid technology. Together with its newly updated companion text, Strategies for Selecting and Verifying Hearing Aid Fittings, this book forms the basis of a complete reference library on selecting, ordering, measuring, and verifying hearing aid fittings and performance. Table of Contents Table of Contents Preface Contributors 1. Electroacoustic Testing of Hearing Aids and Standards George J. Frye 2. Microphone, Telecoil, and Receiver Options: Past, Present, and Future Stephen C. Thompson 3. Amplifiers and Circuit Algorithms for Contemporary Hearing Aids Jeremy Agnew 4. Hearing Aid Adjustments Through Potentiometer and Switch Options Jeremy Agnew 5. Considerations in Modern Multichannel Nonlinear Hearing Aids Francis K. Kuk 6. Earhooks, Tubing, Earmolds, and Shells Michael Valente, Maureen Valente, Jane Enrietto, Karen M. Layton 7. Directional Amplification for Improved Signal-to-Noise Ratio: Strategies, Measurements, and Limitations Todd A. Ricketts, Andrew B. Dittberner 8. Review of Research on Digital Signal Processing Craig W. Newman, Sharon A. Sandridge 9. Auditory Rehabilitation Technology: Improving Communication for Individuals with Hearing Loss Carl Crandell, Joseph Smaldino, M. Samantha Lewis, Brian Kreisman Index