| 摘要 |
PROBLEM TO BE SOLVED: To provide a microphone device for surely eliminating inconveniences where a microphone cannot operate as a voice detector even if a normal microphone is present when the microphone fails. SOLUTION: A signal-processing section 3 comprises a normal microphone selection processing section 11, delay processing sections 12a-12d, and an addition processing section 13. Then, a voice signal that is detected by each of microphones 2a-2d is first processed by a normal microphone selection processing section 11. The normal microphone selection processing section 11 outputs only a voice signal that is detected by the microphones 2a-2d that have been diagnosed to be normal. Then, the voice signals are subjected to addition processing by an addition processing section 13 and then are outputted, thus outputting a processing signal where noise has been eliminated from the signal-processing section 13.
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