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	Pitch and band-pass voicing strengths coefficients joint quantization algorithm
	Cui Huijuan ; Li Ye ; Hong Kan ; Tang Kun
	2010-10-12 ; 2010-10-12
关键词	Practical/ speech synthesis vocoders/ band-pass voicing strengths coefficients joint quantization algorithm index allocation pitch quantization speech quality synthesis low-bit-rate vocoders code index space vector quantization algorithm/ B6130E Speech recognition and synthesis B6220M Codecs, coders and decoders C5260S Speech processing techniques
中文摘要	A joint quantization algorithm based on index allocation was developed to improve the precision of pitch quantization and speech quality for low-bit-rate vocoders. The algorithm divides the code index space according to the band-pass voicing strengths coefficients (BPVC) mode. The size of the code book for the pitch is enlarged in the all-voiced mode so that the pitch can be more exactly quantized. Experiment results show that the algorithm reduces the pitch quantization error by 20% compared to the vector quantization algorithm which remarkably improves the synthesized speech quality.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82613]
专题	清华大学
推荐引用方式 GB/T 7714	Cui Huijuan,Li Ye,Hong Kan,et al. Pitch and band-pass voicing strengths coefficients joint quantization algorithm[J],2010, 2010.
APA	Cui Huijuan,Li Ye,Hong Kan,&Tang Kun.(2010).Pitch and band-pass voicing strengths coefficients joint quantization algorithm..
MLA	Cui Huijuan,et al."Pitch and band-pass voicing strengths coefficients joint quantization algorithm".(2010).

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