Localization of non-linearities in the cochlea

An attempt is made to locate the non-linear sources inside the cochlea. The possible sources can be divided in several classes: of no significance are the perilymph, the endolymph and the impedances of Reissner's membrane and the basilar membrane; of little significance is the motion of the mentioned membranes in their own plane; of uncertain significance are the oval window impedance and the spiral coiling of the cochlea, while the mechanism of tectorial membrane, haircells and organ of Corti is likely to be an important source of non-linearity. Moreover the widely used membrane equation is improved in the course of the work.