Making Sense of Directional Microphone Hearing Aids We have witnessed a large increase in the availability of directional microphone hearing aids over the past few years. Directional microphone technology is now available in analog, digitally controlled analog, and digital hearing aids, and has been implemented into both behind-the-ear and in-the-ear styles. This Short Course reviews basic design ... Short Course
Short Course  |   December 1999
Making Sense of Directional Microphone Hearing Aids
 
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Article Information
Hearing Aids, Cochlear Implants & Assistive Technology
Short Course   |   December 1999
Making Sense of Directional Microphone Hearing Aids
American Journal of Audiology, December 1999, Vol. 8, 117-127. doi:10.1044/1059-0889(1999/018)
History: Received June 10, 1998 , Accepted July 19, 1999
 
American Journal of Audiology, December 1999, Vol. 8, 117-127. doi:10.1044/1059-0889(1999/018)
History: Received June 10, 1998; Accepted July 19, 1999

We have witnessed a large increase in the availability of directional microphone hearing aids over the past few years. Directional microphone technology is now available in analog, digitally controlled analog, and digital hearing aids, and has been implemented into both behind-the-ear and in-the-ear styles. This Short Course reviews basic design differences across directional microphone hearing aids. A number of different laboratory and clinical evaluation methods used for assessment of both electroacoustic and behavioral directivity are then reviewed. In addition, the potential impact of test conditions such as room reverberation and type and position of competing noise(s), on listener performance when fit with directional hearing aids are considered. Recommendations and suggestions relating to the clinical and laboratory assessment of directional hearing aids are provided.

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