Flexible solver for 1-d cochlear partition simulations

PABLO E. RIERA; EGUIA, MANUEL C.

Ciudad de Buenos Aires

Congreso; 22nd International Congress on Acoustics ICA 2016; 2016

There is a vast literature on cochlear modelling, much of it based on theoretical and numericalanalysis of the hydromechanics of the canals and the physiology and micromechanics of theorgan of Corti. During the past decades, many models have been developed from commontheoretical grounds but with differences in the cochlear partition impedance, mainly because ofthe active mechanism adopted. Here we present a module for the Python language that allowsto simulate and compare many different models in a simple manner, with the only need of writingthe partition impedance expression. The outcome is a highly optimized C++ code that carries onthe numerical simulation. The module can simulate models that fit in the long wave approximationof the cochlear fluid mechanics or, equivalently, a one dimensional transmission line. It allows anarbitrary number of variables for the partition impedance, including longitudinal coupling.