Study the otoacoustic emissions at different stimulus levels

In this study the otoacoustic emission has been studied for three persons with vary stimulus 60,65,and 70 dB pSPL, in this study the TEOAE latency will be evaluated as a function of the stimulus level, to get information on the dependence of cochlear tuning on the stimulus level and to compare the results with the predictions of transmission line cochlear-models. show the latency for many frequencies and the different between the cases and in the same time compare the result. The cochlear latency has been evaluated in young adults by timefrequency analysis of transient evoked otoacoustic emissions recorded using the nonlinear acquisition mode at different levels of the click stimulus. The frequency is a function of the latency so in this wok we calculated the latencies for three persons by using matching pursuit method and we found that the latency is a function of stimulus level.