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Earl R. Harford, PhD

Arch Otolaryngol. 1981;107(8):461-468.

Abstract
• A new miniature wide-range electret microphone with a flat frequency response is available to the audiology clinic to measure sound pressure in a patient's ear canal. This article describes the clinical application of this new microphone for the selection and monitoring of hearing aid response. Preliminary results of the relationship between ear canal measurements and functional gain are also provided. This new clinical technique can provide the audiologist with quick objective data on the response of a hearing aid while it is being worn by the patient.

(Arch Otolaryngol 1981;107:461-468)

Author Affiliations
From the Department of Otolaryngology, University of Minnesota Medical School, Minneapolis.

Footnotes
Accepted for publication Feb 13, 1981.

Read in part before the American Speech, Language, and Hearing Association Convention, Detroit, Nov 23, 1980.

Reprint requests to Audiology Clinic, Box 283, University of Minnesota Hospitals, Minneapolis, MN 55455 (Dr Harford).

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