A 2-D Cochlea with Hopf Oscillators

Abstract

In this paper we present the circuits for a 2-D silicon cochlea whose basilar membrane resonant elements are constructed using oscillators whose dynamic behaviour is governed by the Hopf differential equation. By using Hopf oscillators we are able to model some of the behaviour of the outer hair cells (OHCs) whose action is responsible for the cochlea's nonlinear behaviour.