Time-Frequency Analysis of Transient Evoked Otoacoustic Emissions of Subjects with Auditory Neuropathy

Auditory neuropathy (AN) is a hearing disorder characterized by normal outer hair cell function and abnormal neural function at the level of VIII^th nerve. Normal otoacoustic emissions can be observed in patients with auditory neuropathy, but the differences from those in normal subjects still can be identified. Take the use of time-frequency distribution, this paper compared the frequencies and latencies of transient evokes otoacoustic emissions in AN ears and normal ears. A trend of longer latencies of 1-2 kHz components was found in AN group and a little more high frequency components can be observed in AN group.