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Voice detecting method and apparatus using a long-time average of the time variation of speech features, and medium thereof

机译:使用语音特征的时间变化的长时间平均值的语音检测方法和装置及其介质

摘要

A first filter (2061 in FIG. 1) calculates a long-time average of first change quantities based on a difference between a line spectral frequency of an input voice signal and a long-time average thereof. A second filter (2062 in FIG. 1) calculates a long-time average of second change quantities based on a difference between a whole band energy of the input voice signal and a long-time average thereof. A third filter (2063 in FIG. 1) calculates a long-time average of third change quantities based on a difference between a low band energy of the input voice signal and a long-time average thereof. A fourth filter (2064 in FIG. 1) calculates a long-time average of fourth change quantities based on a difference between a zero cross number of the input voice signal and a long-time average thereof. A voice/non-voice determining circuit (1040 in FIG. 1) discriminates a voice section from a non-voice section in the voice signal using the long-time average of the above-described first change quantities, the long-time average of the above-described second change quantities, the long-time average of the above-described third change quantities, and the long-time average of the above-described fourth change quantities.
机译:第一滤波器(图 1 中的 2061 )基于输入语音信号的线谱频率与噪声之间的差来计算第一变化量的长时间平均值。长期平均。第二滤波器(图 1 中的 2062 )基于输入语音信号的全频带能量与噪声之间的差来计算第二变化量的长期平均值。长期平均。第三滤波器(图 1 中的 2063 )基于输入语音信号的低频带能量和噪声之间的差来计算第三变化量的长期平均值。长期平均。第四滤波器(图 1 中的 2064 )基于输入语音信号的零交叉数与噪声之间的差来计算第四变化量的长期平均值。长期平均。语音/非语音确定电路(图 1 中的 1040 )使用以下信号的长期平均值来区分语音信号中的语音部分和非语音部分:上述第一变化量,上述第二变化量的长时间平均值,上述第三变化量的长时间平均值以及上述第四变化量的长时间平均值。

著录项

  • 公开/公告号US2006271363A1

    专利类型

  • 公开/公告日2006-11-30

    原文格式PDF

  • 申请/专利权人 ATSUSHI MURASHIMA;

    申请/专利号US20060501958

  • 发明设计人 ATSUSHI MURASHIMA;

    申请日2006-08-10

  • 分类号G10L15/20;

  • 国家 US

  • 入库时间 2022-08-21 21:01:16

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