| 摘要 |
Provided is a microphone system capable of detecting a direction of a sound source and extracting an object sound with a high S/N ratio. A microphone system comprises a plurality of microphone pairs 1 to 7, each pair having two microphones arranged apart from each other at a predetermined space at a crossing angle of 60 degrees or less, a plurality of subtraction circuits 11a for calculating a difference signal of outputs of each microphone pair, a plurality of addition circuits 11e for calculating a sum signal of outputs of each microphone pair, circuit sections 11c, 11d and 20 for detecting, as sound source direction information, a minimum value output from each output of the subtraction circuits 11a, and a switch 11f for selecting a sum signal of the microphone pairs 1 to 7 corresponding to the minimum value output and for outputting the selected sum signal as sound information.
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