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公开(公告)号:US08099288B2
公开(公告)日:2012-01-17
申请号:US11674139
申请日:2007-02-12
申请人: Zhengyou Zhang , Amarnag Subramaya
发明人: Zhengyou Zhang , Amarnag Subramaya
摘要: A text-dependent speaker verification technique that uses a generic speaker-independent speech recognizer for robust speaker verification, and uses the acoustical model of a speaker-independent speech recognizer as a background model. Instead of using a likelihood ratio test (LRT) at the utterance level (e.g., the sentence level), which is typical of most speaker verification systems, the present text-dependent speaker verification technique uses weighted sum of likelihood ratios at the sub-unit level (word, tri-phone, or phone) as well as at the utterance level.
摘要翻译: 一种文本相关的扬声器验证技术,其使用一般的与扬声器无关的语音识别器进行强大的扬声器验证,并使用与扬声器无关的语音识别器的声学模型作为背景模型。 现在的文本相关说明者验证技术不是在大多数说话人验证系统的典型的话语级别(例如,句子级别)上使用似然比检验(LRT),而是使用子单元中的似然比加权和 水平(单词,三话电话或电话)以及话语水平。
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公开(公告)号:US20080195389A1
公开(公告)日:2008-08-14
申请号:US11674139
申请日:2007-02-12
申请人: Zhengyou Zhang , Amarnag Subramaya
发明人: Zhengyou Zhang , Amarnag Subramaya
IPC分类号: G10L15/00
摘要: A text-dependent speaker verification technique that uses a generic speaker-independent speech recognizer for robust speaker verification, and uses the acoustical model of a speaker-independent speech recognizer as a background model. Instead of using a likelihood ratio test (LRT) at the utterance level (e.g., the sentence level), which is typical of most speaker verification systems, the present text-dependent speaker verification technique uses weighted sum of likelihood ratios at the sub-unit level (word, tri-phone, or phone) as well as at the utterance level.
摘要翻译: 一种文本相关的扬声器验证技术,其使用一般的与扬声器无关的语音识别器进行强大的扬声器验证,并使用与扬声器无关的语音识别器的声学模型作为背景模型。 现在的文本相关说明者验证技术不是在大多数说话人验证系统的典型的话语级别(例如,句子级别)上使用似然比检验(LRT),而是使用子单元中的似然比加权和 水平(单词,三话电话或电话)以及话语水平。
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