发明名称 |
SPEECH RECOGNITION METHOD USING TIME-FREQUENCY MASKING MECHANISM |
摘要 |
A speech recognition method in which input speech signals are converted to digital signals and then time sequentially converted to cepstrum coefficients or logarithmic spectra. Dynamic spectrum time sequence is obtained by time frequency filtering of cepstrum coefficients, or masked spectrum time sequence is obtained by time frequency masking of the logarithmic vector time sequence. Based on the dynamic cepstrum time sequence or masked spectrum time sequence obtained in this manner, speech is recognized.
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申请公布号 |
CA2098629(C) |
申请公布日期 |
1997.07.15 |
申请号 |
CA19932098629 |
申请日期 |
1993.06.17 |
申请人 |
ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES |
发明人 |
AIKAWA, KIYOAKI;KAWAHARA, HIDEKI;TOHKURA, YOH'ICHI |
分类号 |
G10L15/02;G10L15/00;G10L15/14;G10L19/00;(IPC1-7):G10L9/06 |
主分类号 |
G10L15/02 |
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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