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  2006, Vol. 19 Issue (3): 300-306    DOI:
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A Novel Voice Conversion Method Based on Codebook Mapping with PhonemeTied Weighting
WANG ZiXiang, DAI LiRong, WANG YuPing, WANG RenHua
Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027

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Abstract  The voice conversion system framework is introduced in this paper. Further, the conventional codebook mapping method for voice conversion is discussed. This paper point out that the conventional codebook mapping method, which calculates the weighting coefficients based on whole codebooks, tends to generate overly smoothed effect on converted speech spectrum. So the converted speech quality is decreased greatly. To address this problem, a novel voice conversion method based on codebook mapping with phonemetied weighting is presented. And a new decision tree based prosodic conversion method is also proposed. The experiments show that the proposed methods can effectively convert speaker's individuality while maintaining high speech quality with only a small amount of training data.
Key wordsVoice Conversion      Codebook Mapping      Decision Tree     
Received: 07 January 2005     
ZTFLH: TN391.42  
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WANG ZiXiang
DAI LiRong
WANG YuPing
WANG RenHua
Cite this article:   
WANG ZiXiang,DAI LiRong,WANG YuPing等. A Novel Voice Conversion Method Based on Codebook Mapping with PhonemeTied Weighting[J]. , 2006, 19(3): 300-306.
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