首页>
外国专利>
Voice detecting method and apparatus using a long-time average of the time variation of speech features, and medium thereof
Voice detecting method and apparatus using a long-time average of the time variation of speech features, and medium thereof
展开▼
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
展开▼
页面导航
摘要
著录项
相似文献
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.
展开▼