论文信息 - A Neuromorphic Sound Localizer for a Smart MEMS System

A Neuromorphic Sound Localizer for a Smart MEMS System

In this paper we present an analog circuit that determines the direction of incoming sound using two microphones. The circuit is inspired by biology and uses two silicon cochlea to determine the azimuthal angle of the sound source with respect to the axis of the two microphones using the time difference between the two microphone signals. A new algorithm, adapted to an analog VLSI implementation, is presented together with simulation and measurement results.

Shihab Shamma | André van Schaik

[1] L A JEFFRESS,et al. A place theory of sound localization. , 1948, Journal of comparative and physiological psychology.

[2] André van Schaik,et al. Improved Silicon Cochlea using Compatible Lateral Bipolar Transistors , 1995, NIPS.

[3] A. van Schaik,et al. An Analog VLSI Model of Periodicity Extraction in the Human Auditory System , 1999 .

[4] S A Shamma,et al. Stereausis: binaural processing without neural delays. , 1989, The Journal of the Acoustical Society of America.

[5] John Lazzaro,et al. A Silicon Model Of Auditory Localization , 1989, Neural Computation.

[6] John Lazzaro,et al. Analog VLSI model of binaural hearing , 1991, IEEE Trans. Neural Networks.

[7] Richard F. Lyon,et al. Improved implementation of the silicon cochlea , 1992 .

[8] R Meddis,et al. Analog very large-scale integrated (VLSI) implementation of a model of amplitude-modulation sensitivity in the auditory brainstem. , 1999, The Journal of the Acoustical Society of America.