SPEECH RECOGNITION APPARATUS AND METHOD
    1.
    发明申请
    SPEECH RECOGNITION APPARATUS AND METHOD 审中-公开
    语音识别装置和方法

    公开(公告)号:US20160260426A1

    公开(公告)日:2016-09-08

    申请号:US15058550

    申请日:2016-03-02

    CPC classification number: G10L15/05 G10L25/30 G10L25/84

    Abstract: A speech recognition apparatus and method are provided, the method including converting an input signal to acoustic model data, dividing the acoustic model data into a speech model group and a non-speech model group and calculating a first maximum likelihood corresponding to the speech model group and a second maximum likelihood corresponding to the non-speech model group, detecting a speech based on a likelihood ratio (LR) between the first maximum likelihood and the second maximum likelihood, obtaining utterance stop information based on output data of a decoder and dividing the input signal into a plurality of speech intervals based on the utterance stop information, calculating a confidence score of each of the plurality of speech intervals based on information on a prior probability distribution of the acoustic model data, and removing a speech interval having the confidence score lower than a threshold.

    Abstract translation: 提供一种语音识别装置和方法,所述方法包括将输入信号转换为声学模型数据,将声学模型数据分解成语音模型组和非语音模型组,并计算对应于语音模型组的第一最大似然 和对应于非语音模型组的第二最大似然,基于第一最大似然和第二最大似然之间的似然比(LR)检测语音,基于解码器的输出数据获得话音停止信息,并将 基于所述发声停止信息将信号输入到多个语音间隔中,基于关于所述声学模型数据的先验概率分布的信息来计算所述多个语音间隔中的每一个的置信度分数,以及去除具有所述置信区间的语音间隔 低于阈值。

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