IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543

This article has now been updated. Please use the final version.

Two-Tone Distortion Products in Hardware-Efficient Cochlea Model based on Asynchronous Cellular Automaton Oscillator
Kentaro TakedaHiroyuki Torikai
Author information
JOURNAL FREE ACCESS Advance online publication

Article ID: 18.20210310


In this paper, we present a cochlea model whose nonlinear dynamics are described by an asynchronous cellular automaton. Our proposed model is demonstrated to enable the reproduction of two-tone distortion products. The proposed model is implemented on a field-programmable gate array (FPGA). It is subsequently demonstrated that our proposed model can be implemented using fewer hardware resources than a conventional cochlea model, which is a Hopf-type cochlea model, implemented on a digital signal processor performing a numerical integration.

Content from these authors
© 2021 by The Institute of Electronics, Information and Communication Engineers