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OALib Journal期刊
ISSN: 2333-9721
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Robust speaker verification in low bit rate channels
低速率信道环境下鲁棒的说话人确认

Keywords: speaker verification,speech coding,Gaussian mixture model
说话人确认
,语音编码,高斯混合模型,低速率,信道环境,鲁棒性,说话人确认,channels,rate,speaker,verification,信道条件,结果,实验,高斯混合模型,选择,类型,测试语音,判别,检测器,加权参数,失真,编码,LPCC

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Abstract:

The influence of speech coding on text-independent speaker verification was studied. Two methods were proposed to improve the robustness of systems under the matched condition and mismatched one, respectively. The weighted LPCC feature based on the distortion of speech coding was explored to reduce the influence under the matched condition. Under the mismatched condition, the solution was to construct multi-models in multi-channels. In this method, a GMM speech coder detector was used to determine the pattern of the testing speech, and then the corresponding speaker verification model was chosen. Experiments show that the two methods can improve the performance of speaker verification in low bit channels.

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