发明名称 |
SYSTEM AND METHOD FOR IMPROVING VOICE RECOGNITION IN NOISY ENVIRONMENTS AND FREQUENCY MISMATCH CONDITIONS |
摘要 |
A method and system that improves voice recognition by improving the voice recognizer of a voice recognition system 10. Mu-law compression 20 of bark amplitudes is used to reduce the effect of additive noise and thus improve t he accuracy of the voice recognition system. A-law compression 21 of bark amplitudes is used to improve the accuracy of the voice recognizer. Both mu- law compression 20 and mu-law expansion 22 can be used in the voice recogniz er to improve the accuracy of the voice recognizer. Both A-law compression 21 a nd A-law expansion can be used in the voice recognizer to improve the accuracy of the voice recognizer.
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申请公布号 |
CA2427339(A1) |
申请公布日期 |
2002.10.17 |
申请号 |
CA20012427339 |
申请日期 |
2001.10.25 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
GARUDADRI, HARINATH |
分类号 |
G10L15/10;G10L15/02;G10L15/20;(IPC1-7):G10L17/00 |
主分类号 |
G10L15/10 |
代理机构 |
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地址 |
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