A Neuromorphic Monaural Sound Localizer

Abstract

We describe the first single microphone sound localization system and its inspiration from theories of human monaural sound localization. Reflections and diffractions caused by the external ear (pinna) allow humans to estimate sound source elevations using only one ear. Our single microphone localization model relies on a specially shaped reflecting structure that serves the role of the pinna. Specially designed analog VLSI circuitry uses echo-time processing to localize the sound. A CMOS integrated circuit has been designed, fabricated, and successfully demonstrated on actual sounds.

Department(s)

Electrical and Computer Engineering

International Standard Book Number (ISBN)

978-026211245-1

International Standard Serial Number (ISSN)

1049-5258

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2025 Neural Information Processing Systems Foundation, All rights reserved.

Publication Date

01 Jan 1999

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