Application of a stimulus spectral calibration routine to click evoked otoacoustic emissions.
This study examined the influence of a calibrated transient stimulus on click evoked otoacoustic emissions (CEOAEs). The calibration procedure produced a spectrally uniform stimulus (1-8 kHz) at the plane of the ear probe that was very similar among individuals. However, the calibrated signal reduced the overall level and repeatability of the CEOAE, probably due to the minimization of the energy peak at 2 kHz, which is enhanced in the uncalibrated signal. The amplitude of CEOAEs obtained with the calibrated signal was less variable among individuals compared to CEOAEs obtained with the uncalibrated signal.
Chertoff
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Department of Hearing and Speech, Kansas University Medical Center, Kansas City 66160-7605, USA. mchertof@kumc.edu
Guruprasad
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D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D003051:Cochlea / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem; D006801:Humans; D013997:Time Factors