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Design of a silicon cochlea system with biologically faithful response

Wang, S., Koickal, T. J., Enemali, G., Gouveia, L., Wang, L. and Hamilton, A. (2015) Design of a silicon cochlea system with biologically faithful response. In: International Joint Conference on Neural Networks (IJCNN 2015), Killarney, Ireland, 12-17 Jul 2015,

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Abstract

This paper presents the design and simulation results of a silicon cochlea system that has closely similar behavior as the real cochlea. A cochlea filter-bank based on the improved three-stage filter cascade structure is used to model the frequency decomposition function of the basilar membrane; a filter tuning block is designed to model the adaptive response of the cochlea; besides, an asynchronous event-triggered spike codec is employed as the system interface with bank-end spiking neural networks. As shown in the simulation results, the system has biologically faithful frequency response, impulse response, and active adaptation behavior; also the system outputs multiple band-pass channels of spikes from which the original sound input can be recovered. The proposed silicon cochlea is feasible for analog VLSI implementation so that it not only emulates the way that sounds are preprocessed in human ears but also is able match the compact physical size of a real cochlea.

Item Type:	Conference Proceedings
Status:	Published
Refereed:	Yes
Glasgow Author(s) Enlighten ID:	Gouveia, Mr Luiz
Authors:	Wang, S., Koickal, T. J., Enemali, G., Gouveia, L., Wang, L., and Hamilton, A.
College/School:	College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Copyright Holders:	Copyright © 2015 International Neural Network Society
Publisher Policy:	Reproduced with the permission of the authors

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References

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Deposit and Record Details

ID Code:	108750
Depositing User:	Mr Luiz Gouveia
Datestamp:	12 Aug 2015 08:50
Last Modified:	19 Sep 2022 14:24
Date of first online publication:	2015
Date Deposited:	15 December 2015
Data Availability Statement:	No