| 摘要 |
Disclosed is an apparatus including an unvoiced speech input device, a decision unit and an alarm unit. The unvoiced speech input device receives the unvoiced speech, and the decision unit determines whether or not a signal received from the unvoiced speech input device is an ordinary speech. The alarm unit receives a result of the decision from the decision unit to give an alarm when the result of decision indicates the ordinary speech. The alarm is given to a wearer of the apparatus if he/she has made ordinary speech.
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