发明名称 |
Recognition apparatus using articulation positions for recognizing a voice |
摘要 |
A first voice recognition apparatus includes a device for analyzing frequencies of the input voice and a device coupled to the analyzing unit for determining vowel zones and consonant zones of the analyzed input voice. The apparatus further includes a device for determining positions of articulation of an input voice determined from the vowel zones by calculating from frequency components of the input voice in accordance with a predetermined algorithm based on frequency components of monophthongs having known phonation contents and positions of articulation. A second voice recognition apparatus includes a device for analyzing frequencies of the input voice so as to derive acoustic parameters from the input voice. A pattern converting unit is coupled to the analyzing unit and uses a neural network for converting the acoustic parameters to articulartory vectors. The neural network is capable of learning, by the error back propagation method using target data produced by a predetermined sequence based on the acoustic parameters, to create rules for converting the acoustic parameters of the input voice to articulatory vectors having at least two vector elements. A recognizing unit is coupled to the pattern converting unit for recognizing the input voice by comparing a feature pattern of the analyzed input voice having the articulatory vector with reference feature patterns in a predetermined sequence. A storage unit is coupled to the recognizing unit for storing the reference feature patterns having the articulatory vectors created by the pattern converting unit.
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申请公布号 |
US5175793(A) |
申请公布日期 |
1992.12.29 |
申请号 |
US19900473238 |
申请日期 |
1990.01.31 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
SAKAMOTO, KENJI;YAMAGUCHI, KOUICHI |
分类号 |
G10L15/16 |
主分类号 |
G10L15/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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