Authors:
Xin Yang
;
Mokhtar Nibouche
;
Tony Pipe
and
Chris Melhuish
Affiliation:
Bristol Robotics Laboratory, United Kingdom
Keyword(s):
Bio-inspired system, Auditory subsystems, Acoustic signal processing, Digital filter, FPGA, System on chip.
Related
Ontology
Subjects/Areas/Topics:
Acoustic Signal Processing
;
Bioinformatics
;
Biomedical Engineering
;
Biomedical Signal Processing
;
Informatics in Control, Automation and Robotics
;
Real-Time Systems
;
Signal Processing, Sensors, Systems Modeling and Control
;
Time and Frequency Response
;
Time-Frequency Analysis
Abstract:
This paper presents a fully parameterised and highly scalable design prototype of FPGA (field programmable gate array) implementation of a biologically inspired auditory signal processing system. The system has been captured and simulated using system-level integrated design tools, namely, System GeneratorTM and AccelDSPTM both from XilinxTM . The implemented hardware auditory periphery model consists of two sub-models—the Patterson’s Gammatone filter bank and the Meddis’ inner hair cell. The prototype has been successfully ported onto a VirtexTM –II Pro FPGA. Ultimately, it can be used as a front-end apparatus in a variety of embedded auditory signal processing applications.