| 一种基于DCT和PSOLA的语音变换方法 |
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| 引用本文： | 孙健,贾永兴,陈向东.一种基于DCT和PSOLA的语音变换方法[J].军事通信技术,2008(2). |
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| 作者姓名： | 孙健 贾永兴 陈向东 |
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| 作者单位： | 解放军理工大学通信工程学院研究生1队;解放军理工大学理学院基础电子学系;解放军理工大学通信工程学院电信工程系; |
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| 摘 要： | 文中提出了一种基于离散余弦变换(DCT)和基音同步叠接相加(PSOLA)的语音变换方法。此方法可以自由调整源语音的基音频率、能量分布和时长,以达到变换要求,并且变换后的语音具有较高的质量。变换方法首先对基音标记过的语音段通过DCT进行基音频率和能量分布的调整,之后再通过PSOLA法进一步对基音频率进行修正。实验表明,此方法在男女声变换中,能够使变换前、后语音的性别感觉明显变化,并且保持了较高的语音质量。
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| 关 键 词： | 离散余弦变换 基音同步叠接相加 基频调整比例 能量调整比例 时长调整比例 |
Voice Conversion Method Based on DCT and PSOLA |
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| SUN Jian,JIA Yong-xing,CHEN Xiang-dong.Voice Conversion Method Based on DCT and PSOLA[J].Journal of Military Communications Technology,2008(2). |
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| Authors: | SUN Jian JIA Yong-xing CHEN Xiang-dong |
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| Institution: | SUN Jian1,JIA Yong-xing2,CHEN Xiang-dong3(1.Postgraduate Team 1 ICE,PLAUST,Nanjing 210007,China,2.Department of Basic Electronics IS,Nanjing 211101,3.Department of Telecommunications Engineering ICE,PLAUST) |
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| Abstract: | This paper proposed a voice conversion method based on Discrete Cosine Transformation(DCT) and Pitch-Synchronous Overlap-Add(PSOLA).This method achieved the transformation requirements by modifying the source voice in pitch-scale,energy and time-scale without degrading the voice quality.First it adjusted the energy and pitch-scale of the source voice using DCT.Then through PSOLA technology it readjusted the pitch-scale and time-scale.Experiments show that this method used in male/female to female/male voice... |
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| Keywords: | discrete cosine transformation pitch-synchronous overlap-add pitch-scale energy-scale time-scale |
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