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Design of a silicon cochlea system with biologically faithful response

Design of a silicon cochlea system with biologically faithful response
Design of a silicon cochlea system with biologically faithful response
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.
Institute of Electrical and Electronics Engineers Inc.
Wang, Shiwei
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Koickal, Thomas Jacob
ca8588e6-32a5-4d70-8068-0a17178a5cc8
Enemali, Godwin
5ce6ecb8-6bb6-4cb2-8753-158a1337b3e0
Gouveia, Luiz
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Lei Wang,
e33e887d-6e83-43df-87fb-94ae0eaf48b2
Hamilton, Alister
248e45ad-b658-4af3-9bdb-b09caeae9238
Wang, Shiwei
97433cb6-7752-4c68-89f8-933f233d8642
Koickal, Thomas Jacob
ca8588e6-32a5-4d70-8068-0a17178a5cc8
Enemali, Godwin
5ce6ecb8-6bb6-4cb2-8753-158a1337b3e0
Gouveia, Luiz
999da2d5-38a0-4384-9950-591d7b89714a
Lei Wang,
e33e887d-6e83-43df-87fb-94ae0eaf48b2
Hamilton, Alister
248e45ad-b658-4af3-9bdb-b09caeae9238

Wang, Shiwei, Koickal, Thomas Jacob, Enemali, Godwin, Gouveia, Luiz, Lei Wang, and Hamilton, Alister (2015) Design of a silicon cochlea system with biologically faithful response. In 2015 International Joint Conference on Neural Networks (IJCNN). Institute of Electrical and Electronics Engineers Inc. 7 pp . (doi:10.1109/IJCNN.2015.7280828).

Record type: Conference or Workshop Item (Paper)

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.

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More information

Published date: July 2015
Venue - Dates: 2015 International Joint Conference on Neural Networks (IJCNN), , Killarney, Ireland, 2015-07-12 - 2015-07-17

Identifiers

Local EPrints ID: 445841
URI: http://eprints.soton.ac.uk/id/eprint/445841
PURE UUID: 0bbe4a33-2c98-41f1-bff7-9190396cf636
ORCID for Shiwei Wang: ORCID iD orcid.org/0000-0002-5450-2108

Catalogue record

Date deposited: 08 Jan 2021 17:33
Last modified: 04 Sep 2021 02:06

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Contributors

Author: Shiwei Wang ORCID iD
Author: Thomas Jacob Koickal
Author: Godwin Enemali
Author: Luiz Gouveia
Author: Lei Wang
Author: Alister Hamilton

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