发明名称 |
VERFAHREN ZUR VERRINGERUNG DER FALSCHANZEIGE IN SPRACHERKENNUNGSVERFAHREN FUER KONTINUIERLICHE SPRACHSIGNALE |
摘要 |
A speech recognition method for detecting and recognizing one or more keywords in a continuous audio signal is disclosed. Each keyword is represented by a keyword template representing one or more target patterns, and each target pattern comprises statistics of each of at least one spectrum selected from plural short-term spectra generated according to a predetermined system for processing of the incoming audio. The incoming audio spectra are compared with the target patterns of the keyword templates and candidate keywords are selected according to a predetermined decision process. In post-decision processing, concatentation techniques, based upon a likelihood ratio test, for rejecting false alarms are disclosed. Post-decision processing can include also a prosodic test to enhance the effectiveness of the recognition apparatus. |
申请公布号 |
DE2825186(A1) |
申请公布日期 |
1979.11.08 |
申请号 |
DE19782825186 |
申请日期 |
1978.06.08 |
申请人 |
DIALOG SYSTEMS,INC. |
发明人 |
G. BAHLER,LAWRENCE;L. MOSHIER,STEPHEN |
分类号 |
G10L15/10;G10L15/00;G10L15/02;(IPC1-7):G10L1/00;G06F3/16;G06F15/38 |
主分类号 |
G10L15/10 |
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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