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A digital processing system for source location and sound capture by large microphone arrays

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4 Author(s)
Silverman, H.F. ; LEMS, Brown Univ., Providence, RI, USA ; Patterson, W.R., II ; Flanagan, J.L. ; Rabinkin, D.

The Huge Microphone Array (HMA) project started in February 1994 to design, construct, and test a real-time 512-microphone array system and to develop algorithms for use on it. Analysis of known algorithms showed that signal-processing performance of over 6 Gigaflops would be required; at the same time, there was a need for “portability”, i.e., fitting into a small van. These tradeoffs and many others have led to a unique design in both hardware and software. This paper presents the design and its justifications. Performance data for a few important algorithms relative to usage of processing-capability, response latency, and difficulty of programming are discussed

Published in:

Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on  (Volume:1 )

Date of Conference:

21-24 Apr 1997

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