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1篇 您的检索式：作者名="Raimo Bakis"

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		题名	作者	年代	出处	被引量
	1	IBM Voice Conversion Systems for 2007 TC-STAR Evaluation显示文摘This paper proposes a novel voice conversion method by frequency warping. The frequency warp-ing function is generated based on mapping formants of the source speaker and the target speaker. In addi-tion to frequency warping, fundamental frequency adjustment, spectral envelope equalization, breathiness addition, and duration modification are also used to improve the similarity to the target speaker. The pro-posed voice conversion method needs only a very small amount of training data for generating the warping function, thereby greatly facilitating its application. Systems based on the proposed method were used for the 2007 TC-STAR intra-lingual voice conversion evaluation for English and Spanish and a cross-lingual voice conversion evaluation for Spanish. The evaluation results show that the proposed method can achieve a much better quality of converted speech than other methods as well as a good balance between quality and similarity. The IBM1 system was ranked No. 1 for English evaluation and No. 2 for Spanish evaluation. Evaluation results also show that the proposed method is a convenient and competitive method for cross-lingual voice conversion tasks.	双志伟 Raimo Bakis 秦勇	2008	Tsinghua Science and Technology2008，13，4：	2

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