منابع مشابه
An analog electronic cochlea
Absfracf-An engineered system that hears, such as a speech recognizer, can be designed by modeling the cochlea, or inner ear, and higher levels of the auditory nervous system. To he useful in such a system, a model of the cochlea should incorporate a variety of known effects, such as an asymmetric low-passibandpass response at each output channel, a short ringing time, and active adaptation to ...
متن کاملAnalog electronic cochlea with mammalian hearing characteristics
Systems close to bifurcations can be used as small-signal amplifiers. Biophysical measurements suggest that the active amplifiers present in the mammalian cochlea are systems close to a Hopf bifurcation. The pure tone and transient signal output of our electronic hearing sensor based on this observation provides output that is fully compatible with the electrophysiological data from the mammali...
متن کاملAnalog electronic cochlea design using multiplexing switched-capacitor circuits
A new design methodology is proposed to realize a real cochlea using the multiplexing switched-capacitor circuits. The proposed technique is based upon the transmission-line model proposed by Zwislocki (1950). At the cost of the increase in the number of clock phases, the decay rate in the transition region of the filter section can be increased by adding only a few components. Therefore, the c...
متن کاملAn FPGA-Based Electronic Cochlea
A module generator which can produce an FPGA-based implementation of an electronic cochlea filter with arbitrary precision is presented. Although hardware implementations of electronic cochlea models have traditionally used analog VLSI as the implementation medium due to their small area, high speed, and low power consumption, FPGA-based implementations offer shorter design times, improved dyna...
متن کاملA Passive Shared Element Analog Electrical Cochlea
Edwin Lewis Dept Elect. Eng. U.C. Berkeley We present a simplified model of the micromechanics of the human cochlea, realized with electrical elements. Simulation of the model shows that it retains four signal processing features whose importance we argue on the basis of engineering logic and evolutionary evidence. Furthermore, just as the cochlea does, the model achieves massively parallel sig...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Acoustics, Speech, and Signal Processing
سال: 1988
ISSN: 0096-3518
DOI: 10.1109/29.1639