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    • 9. 发明授权
    • Speech recognition system
    • 语音识别系统
    • US5355432A
    • 1994-10-11
    • US928448
    • 1992-08-12
    • Miyuki TanakaMasao WatariYasuhiko Kato
    • Miyuki TanakaMasao WatariYasuhiko Kato
    • G10L15/02G10L15/00G10L15/10G10L5/06
    • G10L15/10
    • A speech recognition system includes an acoustic analyzer which produces a time sequence of acoustic parameters from an input speech signal in an utterance boundary thereof, and estimates a trajectory in a parameter space from the time sequence of acoustic parameters. The trajectory is re-sampled in the parameter space at predetermined constant intervals sequentially each time the acoustic parameters are produced by the acoustic analyzing means, thereby producing an input utterance pattern. The input utterance pattern is matched with reference speech patterns to recognize the input speech signal. The speech recognition system also has an utterance boundary detector for detecting the utterance boundary of the input speech signal. The trajectory is re-sampled while the utterance boundary is being detected by the utterance boundary detector.
    • 语音识别系统包括声学分析器,其从其语音边界中的输入语音信号产生声学参数的时间序列,并根据声学参数的时间序列估计参数空间中的轨迹。 每当由声学分析装置产生声学参数时,以预定的恒定间隔在参数空间中重新采样轨迹,从而产生输入的发音模式。 输入语音模式与参考语音模式相匹配,以识别输入语音信号。 语音识别系统还具有用于检测输入语音信号的话语边界的话语边界检测器。 当话语边界检测器检测到话语边界时,重新采样轨迹。