Abstract: A method for evaluating the electromotility of hair cells within the cochlea of a mammalian ear by providing an electrode in proximate relation with the round window and applying electricity therethrough in order to electrically excite hair cells within the cochlea to produce electrically-evoked otoacoustic emissions therefrom. The electrically-evoked otoacoustic emissions further excite the internal structure of the cochlea which produces vibrations at the oval window that act through the bones of the middle ear to drive the tympanic membrane, producing corresponding acoustic sounds in the ear canal. The resulting acoustic sounds in the ear canal are subsequently detected with a microphone where they are later measured and characterized via readily available signal processing techniques.