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发明授权
US5528731A Method of accommodating for carbon/electret telephone set variability in automatic speaker verification 失效
在自动扬声器验证中适应碳/驻极体电话机的可变性的方法

Method of accommodating for carbon/electret telephone set variability in automatic speaker verification
摘要：
In a speaker verification system, a method of compensating for differences in speech samples obtained during registration and those obtained during verification due to the use of different types of microphones is provided by filtering at least one of the samples such that the similarities of the two samples are increased. The filtered sample is used within the speaker verification matching process. A two-way comparison is disclosed in which both a verification speech sample and a reference sample are filtered with nonlinear microphone characteristics such as carbon microphone characteristics. A four-way comparison is also disclosed in which patterns produced from unfiltered verification and reference samples and patterns produced from the filtered verification and reference samples are compared to identify a match. A score is determined for each comparison. The comparison having the best score is used to determine if a match has occurred.
摘要（中）：

在说话者验证系统中，通过对至少一个样本进行滤波，以提供两个样本的相似性来提供补偿在注册期间获得的语音样本中的差异以及由于使用不同类型的麦克风而在验证期间获得的差异的方法 增加了。 滤波后的样本在讲话者验证匹配过程中使用。 公开了一种双向比较，其中验证语音样本和参考样本都用诸如碳麦克风特性的非线性麦克风特征来滤波。 还公开了四路比较，其中比较从经过过滤的验证和参考样品产生的未过滤的验证和参考样品和图案产生的图案以识别匹配。 每个比较确定得分。 具有最佳分数的比较用于确定是否发生了匹配。

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