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

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.

[1]  André van Schaik,et al.  FPGA implementation of the CAR Model of the cochlea , 2014, 2014 IEEE International Symposium on Circuits and Systems (ISCAS).

[2]  Richard F Lyon,et al.  Cascades of two-pole-two-zero asymmetric resonators are good models of peripheral auditory function. , 2011, The Journal of the Acoustical Society of America.