Title
Autodirective microphone systems for natural communication with speech recognizers
Abstract
Two technological advances support new sophistication in sound capture; namely, high-quality low-cost electret microphones and high-speed economical signal processors. Combined with new understanding in acoustic beamforming, these technologies permit spatially-selective transduction of speech signals several octaves in bandwidth. Spatial selectivity mitigates the effects of noise and reverberation, and digital processing provides the capability for speech-seeking, autodirective performance. This report outlines the principles of autodirective beamforming for acoustic arrays, and it describes two experimental implementations. It also summarizes the direction and emphasis of continuing research.
Year
DOI
Venue
1991
10.3115/112405.112431
HLT
Keywords
DocType
Citations 
autodirective beamforming,autodirective microphone system,new sophistication,digital processing,acoustic array,speech recognizers,new understanding,acoustic beamforming,experimental implementation,high-quality low-cost electret microphone,high-speed economical signal processor,natural communication,autodirective performance
Conference
8
PageRank 
References 
Authors
5.19
1
3
Name
Order
Citations
PageRank
James L. Flanagan1253649.13
richard j mammone2266.85
G. W. Elko322228.29