Method for the location of a speaker and the acquisition of a voice message, and related system
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United States of America Patent
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Nov 7, 1995
Grant Date -
N/A
app pub date -
Oct 19, 1993
filing date -
Oct 23, 1992
priority date (Note) -
In Force
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Abstract
A system for the detection and location of acoustic signals which can be used, for example, for the acquisition of voice messages or the like, in environments in which noises, echoes and reverberations are present. The system employs an array of microphones and is based on the Fourier antitransform calculus of only the information of phases of the normalised cross power spectrum of pairs of signals acquired from the microphones in the array. The system also enables an acoustic message cleared of the undesired components which are due to noises, echoes, etc to be reconstructed.
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