| 摘要 |
PURPOSE:To reject voices other than a voice to be recognized with high accuracy without misrecognition by differentiating both a learned voice pattern and an input voice pattern and emphasizing the features of a musical voice pattern more. CONSTITUTION:Plural filters which smooth and differentiate the learnt voice pattern by an orthogonal time filter part 5 are used to generate a standard pattern. Then the similarity or difference between the axis of the standard pattern obtained by the differentiation processing and the differential pattern obtained by differentiating the input voice pattern are calculated and a decision part 9 decides whether or not the input voice pattern is the voice to be recognized. Thus, both the learned voice pattern and input voice pattern are differentiated and the features of the voice pattern is emphasized more to make the similarity sensitive to the difference of the voice pattern, so when a voice other than the voice to be recognized is inputted, it can be rejected with high accuracy without misrecognition. |
