模式识别与人工智能
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  2008, Vol. 21 Issue (6): 794-798    DOI:
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Speaker Verification Based on Gaussian Probability Distribution and SVM
GUO Wu, DAI Li-Rong, WANG Ren-Hua
iFly Speech Laboratory, Department of Electronic Engineering and Information Science,
University of Science and Technology of China, Heifei 230027

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Abstract  In the text-independent speaker verification research, the probability distribution against the universal background model (PD-UBM) is calculated. And the score of each UBM Gaussian mixture is adopted as the input feature of the support vector machine (SVM) during the training and testing process. The proposed PD-UBM algorithm with linear kernel function can obtain the same or better performance as the generalized linear discriminant sequence (GLDS) kernel system. Furthermore, if the scores of the Gaussian mixture models (GMM-UBM), the GLDS and the PD-UBM are combined, the significant improvement of the system can be achieved. In 2006, on NIST 1conv4w-1conv4w speaker recognition evaluation (SRE) corpus, the fusion system obtained 25% relative improvement equal error rate (ERR) of over the GMM-UBM system.
Key wordsGeneralized Linear Discriminant Sequence (GLDS)      Mel Frequency Cepstrum Coefficient (MFCC)      Linear Prediction Cepstrum Coefficient (LPCC)     
Received: 04 May 2007     
ZTFLH: TN912.34  
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GUO Wu
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GUO Wu,DAI Li-Rong,WANG Ren-Hua. Speaker Verification Based on Gaussian Probability Distribution and SVM[J]. , 2008, 21(6): 794-798.
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