发明名称 |
SPEECH RECOGNITION DEVICE AND SPEECH RECOGNITION METHOD |
摘要 |
Each word to be recognized is represented by hidden Markov models for male and female and an output probability function and a transition probability preset in hidden Markov models for male and female are prestored in a ROM (6). With reference to feature parameters detected by a feature detecting section (3) and the hidden Markov models, a speech recognizing section (4) determines an occurrence probability of a feature parameter sequence. In the process for determining the occurrence probability, the speech recognizing section (4) gives each word one state sequence of a hidden Markov model common to the hidden Markov models for male and female, multiplies an output probability function value by a transition probability of a preset combination among the output probability functions and transition probabilities stored in the ROM (6), selects a maximum product, determines the occurrence probability based on the selected product, and then recognizes the input speech based on the occurrence probability thus determined.
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申请公布号 |
WO0207146(A1) |
申请公布日期 |
2002.01.24 |
申请号 |
WO2001JP06092 |
申请日期 |
2001.07.13 |
申请人 |
ASAHI KASEI KABUSHIKI KAISHA;MIYAZAKI, TOSHIYUKI;ISHIKAWA, YOJI |
发明人 |
MIYAZAKI, TOSHIYUKI;ISHIKAWA, YOJI |
分类号 |
G10L15/14;G10L15/28;(IPC1-7):G10L15/14 |
主分类号 |
G10L15/14 |
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