Effect of Different Click Durations on Transient Evoked Otoacoustic Emission
نویسندگان
چکیده
Otoacoustic Emissions (OAEs) are sounds which emerge from ear canal when (paradoxically) tympanic membrane receives vibrations from cochlea transmitted by middle ear. The present study was taken up as the literature review shows that the effect of different click durations on the presence of Transient Evoked Otoacoustic Emission (TEOAE) has not been studied. The present study involved 15 subjects (30 ears) with normal hearing sensitivity and having no history of any otologic or neurological problems. The results revealed that there was a reduction in Signal to Noise Ratio (SNR) of the TEOAE in all the frequencies from 1 kHz to 5 kHz when the duration was increased to more than 300 μs. Hence from the present study we can conclude that duration of 300 μs or below gives a maximum SNR in TEOAE.
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