| 语音转换分析及相似度改进 |
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| 引用本文： | 双志伟,张世磊,秦勇. 语音转换分析及相似度改进[J]. 清华大学学报(自然科学版), 2009, 0(Z1) |
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| 作者姓名： | 双志伟 张世磊 秦勇 |
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| 作者单位： | 中国科学技术大学;IBM中国研究院; |
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| 摘 要： | 该文对现有语音转换方法存在的问题进行分析,提出了一种结合频谱弯曲与单元挑选的音色转换方法。首先利用频谱弯曲来获得弯曲后的源频谱。然后,利用弯曲后的源频谱作为预测目标从目标说话人频谱中进行单元挑选。最后,用挑选出来的目标说话人频谱对弯曲后的源频谱进行部分替换,以提高频谱细节上的相似度。评测结果表明,改进的方法与单纯的频谱弯曲相比能够获得约20%的相似度提高。该文还提出了进一步的改进方向。
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| 关 键 词： | 语音转换 相似度 频谱弯曲 单元挑选 |
Warped source spectrum for voice conversion and similarity |
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| SHUANG Zhiwei,,ZHANG Shilei,QIN Yong. Warped source spectrum for voice conversion and similarity[J]. Journal of Tsinghua University(Science and Technology), 2009, 0(Z1) |
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| Authors: | SHUANG Zhiwei ZHANG Shilei QIN Yong |
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| Affiliation: | 1.University of Science and Technology of China;Hefei 230027;China;2.IBM China Research Lab;Beijing 100094;China |
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| Abstract: | A hybrid voice conversion method was developed that combines frequency warping and unit selection.The system first generates the warped source spectrum by frequency warping and then uses the warped source spectrum as a target to select the target speaker's real spectrum.The target speaker's spectrum then substituted for part of the warped source spectrum before reconstructing the converted speech to improve the similarity over the entire spectrum.Evaluations show that the hybrid voice conversion method impr... |
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| Keywords: | voice conversion similarity frequency spectrum bending unit selection |
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