Microphone array apparatus
First Claim
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1. A microphone array apparatus comprising:
- a microphone array including microphones;
a sound source position detector which detects a position of a sound source on the basis of output signals of the microphones;
a camera generating an image of the sound source;
a second detector which detects the position of the sound source on the basis of the image from the camera; and
an integrate decision processing unit which outputs information indicating the position of the sound source on the basis of the information from the sound source position detector and the information from the second detector.
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Abstract
A microphone array apparatus includes a microphone array including microphones, one of the microphones being a reference microphone, filters receiving output signals of the microphones, and a filter coefficient calculator which receives the output signals of the microphones, a noise and a residual signal obtained by subtracting filtered output signals of the microphones other than the reference microphone from a filtered output signal of the reference microphone and which obtain filter coefficients of the filters in accordance with an evaluation function based on the residual signal.
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Citations
1 Claim
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1. A microphone array apparatus comprising:
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a microphone array including microphones;
a sound source position detector which detects a position of a sound source on the basis of output signals of the microphones;
a camera generating an image of the sound source;
a second detector which detects the position of the sound source on the basis of the image from the camera; and
an integrate decision processing unit which outputs information indicating the position of the sound source on the basis of the information from the sound source position detector and the information from the second detector.
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Specification
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Current AssigneeFujitsu Limited
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Original AssigneeFujitsu Limited
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InventorsMatsuo, Naoshi
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Primary Examiner(s)Mei, Xu
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Application NumberUS10/038,188Publication NumberTime in Patent Office1,061 DaysField of Search381/92, 381/91, 381/122, 381/356, 381/58, 381/56, 381/26, 348/23.4, 348/14.09, 367/124, 367/129US Class Current381/92CPC Class CodesH04R 2201/403 Linear arrays of transducersH04R 2410/05 Noise reduction with a sepa...H04R 2430/23 Direction finding using a s...H04R 3/005 for combining the signals o...
