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Proceedings Paper

Modern microphone array for hearing aid and speech processing
Author(s): Arthur Wang; Kung Yao; Ralph E. Hudson; D. Korompis; Flavio Lorenzelli; S. Soli; S. Gao
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Paper Abstract

For various audio, teleconference, hearing aid, and voice recognition applications, a microphone array is known to be an effective method to enhance the SNR in noisy environments resulting in significant improvement of speech intelligibility or recognition. We propose an novel electronically steerable microphone array based on the Maximum Energy concentration criterion to form a focused beam toward the desired speech source, attenuating background noises and rejecting discrete spatial interferers. The design and implementation of a prototype DSP-based microphone array system are described. Some details on microphone measurement, calibration, and optimization needed to achieve a high performance microphone array are discussed. Computer simulated and measured array performances are presented to show the effectiveness of the array system.

Paper Details

Date Published: 22 October 1996
PDF: 10 pages
Proc. SPIE 2846, Advanced Signal Processing Algorithms, Architectures, and Implementations VI, (22 October 1996); doi: 10.1117/12.255425
Show Author Affiliations
Arthur Wang, Univ. of California/Los Angeles (United States)
Kung Yao, Univ. of California/Los Angeles (United States)
Ralph E. Hudson, Univ. of California/Los Angeles (United States)
D. Korompis, Univ. of California/Los Angeles (United States)
Flavio Lorenzelli, Univ. of California/Los Angeles (United States)
S. Soli, House Ear Institute (United States)
S. Gao, House Ear Institute (United States)


Published in SPIE Proceedings Vol. 2846:
Advanced Signal Processing Algorithms, Architectures, and Implementations VI
Franklin T. Luk, Editor(s)

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