February 2009


Features

Cover Story
  Introduction to Special Edition
Musicians and Hearing Aid Design
  by Guest Editors Marshall Chasin, AuD, MSc, Aud(C), and Lawrence J. (Larry) Revit, MA
  An introduction to this special edition of HR and a challenge to the hearing industry and dispensing professionals regarding the need for properly fitting performing musicians. The authors note that we have the technology available—right now—to successfully fit these patients.
Cover Photography by
©2009 Brand Productions

  Musicians and Hearing Aid Design
What's So Special About Music?
  by Lawrence J. Revit, MA
  Although modern digital hearing aids can do a fairly good job of helping a hearing-impaired person enjoy listening to music, the author's experience is that the needs of performing musicians who do their work onstage are not often met by today's hearing aids. Here's why.
  Musicians and Hearing Aid Design
What Special Hearing Aid Properties Do Performing Musicians Require?
  by Mead C. Killion, PhD, ScD (hon)
  Although for a while the emphasis in hearing aid design appeared to have been in favor of speech at the expense of music fidelity, there seems to be no evidence to support the need for a trade-off between high fidelity for music and high intelligibility for speech in noise, says the author. Presented here is a look at the requirements for digitally reproducing and presenting music through appropriate hearing aid design, selection, and fitting.
  Musicians and Hearing Aid Design
The Use of a High Frequency Emphasis Microphone for Musicians
  by Marshall Chasin, AuD, MSc, Aud(C) and Mark Schmidt
  Instrumental music, whether related to its overall higher intensity or its greater crest factor, tends to overdrive the front end of the hearing aid because of the limited available dynamic range on the given A/D converters. Here is one possible solution that can be added to the dispensing professional's toolbox: the HF microphone hearing aid.
  Musicians and Hearing Aid Design
A Digital Signal Processor for Musicians and Audiophiles
  by Jim Ryan, PhD, PEng, and Shailja Tewari, MBA
  The performance aspects of digital signal processors that are designed for speech and musicians with particular reference to a new circuit design.
  Resources
Marketplace 2009
  A special section on some of the hottest available products and services in the industry.


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