A method for voice conversion based on viterbi algorithm

被引：0
作者：
Jian, Zhi-Hua [1 ,2 ]
Yang, Zhen [2 ]
机构：
[1] School of Communication Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China
[2] School of Communication and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210003, China
来源：
Tien Tzu Hsueh Pao/Acta Electronica Sinica | 2009年 / 37卷 / 07期
关键词：
Viterbi algorithm;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel method for voice conversion based on Viterbi algorithm is proposed in this paper. This method uses the matrix of transition probabilities of the target speaker' frames to represent the timing information of the speech sequence, and then determines the most appropriate component of the GMM by utilizing the Viterbi algorithm for converting each frame of the source speech. It avoids the spectral discontinuities caused by losing the relationship between the adjacent speech frames, and alleviates the spectral smoothing due to the weighted averaging in the traditional GMM-based algorithms and then enhances the formant. Both objective and subjective evaluation's results have demonstrated that the proposed method improves the performance of the conventional voice conversion system based on GMM.
引用
收藏
页码：1470 / 1475
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