An Active 2-D Silicon Cochlea

Tara Julia Hamilton, Craig Jin, AndrÉ van Schaik, Jonathan Tapson
2008 IEEE Transactions on Biomedical Circuits and Systems  
In this paper, we present an analog integrated circuit design for an active 2-D cochlea and measurement results from a fabricated chip. The design includes a quality factor control loop that incorporates some of the nonlinear behavior exhibited in the real cochlea. This control loop varies the gain and the frequency selectivity of each cochlear resonator based on the amplitude of the input signal.
doi:10.1109/tbcas.2008.921602 pmid:23852631 fatcat:s7utlisy6rc3fgrl26stpbbwie