Title
Design of a silicon cochlea system with biologically faithful response
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.
Year
DOI
Venue
2015
10.1109/IJCNN.2015.7280828
International Joint Conference on Neural Networks
Field
DocType
ISSN
Impulse response,Computer science,Cochlea,Artificial intelligence,Spiking neural network,Very-large-scale integration,Codec,Frequency response,Pattern recognition,Band-pass filter,Speech recognition,Basilar membrane,Acoustics
Conference
2161-4393
Citations 
PageRank 
References 
1
0.39
11
Authors
6
Name
Order
Citations
PageRank
Shiwei Wang110.39
Thomas Jacob Koickal2446.55
Godwin Enemali312.08
Luiz Carlos Gouveia4123.07
Lei Wang514137.05
Alister Hamilton611719.02