Directional acoustic signal processor and method therefor
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United States of America Patent
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Dec 14, 1999
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N/A
app pub date -
Sep 18, 1995
filing date -
Sep 18, 1995
priority date (Note) -
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Abstract
Two or more microphones are mounted in an environment that contains an equal or lesser number of distinct sound sources. Acoustic energy from each source, with its attendant echoes and reverberation, impinges on each microphone. Using direction-of-arrival information, a first module attempts to extract the original source signals as if the acoustic environment were anechoic. Any residual crosstalk between the channels, which may be caused by echoes and reverberation, is removed by a second module. The first and second modules may be implemented using existing technology.
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