ASA 130th Meeting - St. Louis, MO - 1995 Nov 27 .. Dec 01

2aEA4. Improvements in hearing aid transducers.

Earl R. Geddes

Knowles Electronics, 1151 Maplewood Dr., Itasca, IL 60143

Hearing aid transducers have been around for nearly 50 years and have reached a significant level of maturity. Recent improvements have been made primarily in the areas of robustness, size, and integration of subsystems. This presentation will describe several recent improvements in hearing aid transducers. The author will also discuss areas where future improvements are likely to be made. A discussion of the noise levels in microphones, which are felt to be a concern of the industry, will be made in an attempt to present a manufacturer's view of this issue.