A dual-channel maximum-length-sequence test system has been implemented to characterize the electroacoustic performance of hearing aids. The system applies a frequency-shaped maximum-length sequence to a hearing aid as an acoustic stimulus and measures the acoustic response of the aid in an IEC standard occluded-ear simulator. Measurements are completed in one-third the time required for noise-based measurements, and the responses measured by the system compare favorably to those measured via conventional noise-based methods.
Authors:
Schneider, Todd; Jamieson, Don G.
Affiliation:
Hearing Health Care Research Unit, Department of Communicative Disorders, University of Western Ontario, London, Ont., Canada
JAES Volume 41 Issue 7/8 pp. 583-594; July 1993
Publication Date:
July 1, 1993
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