Hearing Aids – Second Edition

A comprehensive text by Harvey Dillon, Ph.D.

Edition 1 of Hearing Aids has been used around the world to train clinicians and hearing aid engineers alike for a decade. This extensively revised second edition updates Hearing Aids with the advances in technology and research that have been made since the first edition appeared in 2001. Like its predecessor, the book provides up-to-date information on all aspects of hearing aids: their technology, how they alter sound, and how they are prescribed, selected, fitted, measured and evaluated. The book also covers candidacy for a hearing aid fitting, counseling of new hearing aid users, measuring the benefit of hearing aids, special considerations in the fitting of children, and implanted hearing aids.

Anyone who fits hearing aids and anyone undertaking study in this area will find the information useful and accessible. Supporting materials for lecturers are available at no charge.

This book is unique because it is all of the following: Comprehensive, Theoretically sound, Practical, Accurate and factual, Understandable, Integrated and cross-referenced, and Leading.


The book covers technologically oriented topics, people-oriented topics, and other topics that
fill the gap between these

Theoretically sound

In each of its topics, issues and findings are explained rather just discussed or reported.
Recommended practices are based on research findings wherever possible.


The book contains many practical tips and hints, and many tables of data that will end up being pinned onto the walls of clinics. The book has been reviewed by practising clinicians for relevance and practical utility. Much of the practical material is contained within clearly
marked text panels.

Accurate and factual

As well as being authoritatively written, each chapter has been reviewed by leading experts in each field. The book is comprehensively referenced, but in a style that does not interfere with readability of the text.


Each chapter begins with a synopsis and takes the reader from no understanding through to a detailed knowledge of the material. Ease of understanding of the text has been tested on graduate students.

Integrated and cross-referenced

Chapters build on previous chapters. The reader is frequently referred to other sections of the book where more detail on related topics can be found. Duplication is avoided, in a way that can be achieved only in a single-author text. All chapters have an easy-to-understand
structure arranged within three levels of headings.

Several chapters summarize research findings that have not yet appeared anywhere else. Alternative approaches to problems are described, but preferred approaches are recommended wherever possible.

Structured in complexity

The book is designed to be read at four levels. At the simplest level, each chapter has an easy-to-understand synopsis. At the second level, key paragraphs are marked and can be read without the intervening paragraphs, thus forming a complete, thinner book within the total book. The bulk of the remainder of the material is in the intervening paragraphs. This material provides a greater level of detail. Finally, the most detailed material is placed within footnotes or within specially marked text panels. Additionally, strongly practical material, strongly theoretical material, and summary material are placed within differently coloured panels.


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