Live demonstration: FPGA implementation of the CAR model of the cochlea

Author

Thakur, Chetan Singh ; Wright, John ; Hamilton, Tara J. ; Tapson, Jonathan ; van Schaik, Andre

Author_Institution

Bioelectronics & Neurosci. Group, Univ. of Western Sydney, Sydney, NSW, Australia

fYear

2014

fDate

1-5 June 2014

Firstpage

461

Lastpage

461

Abstract

We will demonstrate a 100-CAR-section cochlear model running in real time on an FPGA. Although our result suggests that an electronic cochlea with 1224 cochlear sections can be implemented on an average FPGA [1], the data rate limit of USB 2.0 does not permit us to implement more than 100 filter sections and display the output on a PC. Future work will explore alternatives to increase the bandwidth such as a PCI interface or USB 3.0 that will enable us to implement more filter sections. Nonetheless, our work demonstrates the capability of the CAR model to process sound in real-time.

Keywords

audio signal processing; biomedical electronics; ear; field programmable gate arrays; real-time systems; resonator filters; 100-CAR-section cochlear model; CAR model; FPGA implementation; PCI interface; USB 2.0; USB 3.0; data rate limit; electronic cochlea; live demonstration; real time; sound processing; Biological system modeling; Field programmable gate arrays; Libraries; Microphones; Real-time systems; Resonator filters; Universal Serial Bus;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2014 IEEE International Symposium on

Conference_Location

Melbourne VIC

Print_ISBN

978-1-4799-3431-7

Type

conf

DOI

10.1109/ISCAS.2014.6865170

Filename

6865170