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. 2010 Jun;31(3):437-40.
doi: 10.1097/AUD.0b013e3181ce695d.

Differences between speech-shaped test stimuli in analyzing systems and the effect on measured hearing aid gain

Gitte Keidser  1 , Harvey Dillon, Elizabeth Convery, Anna O'Brien
Affiliations

Differences between speech-shaped test stimuli in analyzing systems and the effect on measured hearing aid gain

Gitte Keidser et al. Ear Hear. 2010 Jun.

Abstract

Objectives: To determine the effect of spectral differences between stimuli used for verification of hearing aid gain in nonlinear devices.

Design: The spectra of nine stimuli from five analyzing systems were obtained.

Results: Most stimuli closely duplicated one of two well-specified spectra. The difference between these two input spectra resulted in measured gain differences of up to 8 dB.

Conclusions: Careful consideration of selected test stimulus for measuring hearing aid gain is recommended.

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