| 摘要 |
There are provided: a data generating section 3 which differentiates an input aural signal, detects as a sample point a point where a differentiating value satisfies a predetermined condition, and obtains discrete amplitude data on detected sample points and timing data indicative of a time interval between the sample points, and a correlating section 4 for computing correlation data by using the amplitude data and the timing data. Input speech is recognized by matching correlation data, which is generated for input speech by a correlating section 4, with correlation data which is generated in the same manner in advance for a variety of speech and is stored in a data memory 6.
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