| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for presuming a speech source position, a method for recognizing speech, and a method for emphasizing the speech to increase a recognition rate of a speech signal of a target under a noisy situation such as an inside of a car. SOLUTION: These methods have a delay sum array part 4, a speech recognition part 5, and a reception part 2. A part 3 presuming the speech source position presumes a position of a speech source 1. Based on this presumption, the delay sum array part 4 forms a directional characteristic in the position of the speech source 1 and emphasizes the speech of the target. The speech recognition part 5 recognizes an incoming signal input from the reception part 2 as a speech.
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