基于STRAIGHT算法汉语语音morphing方法.pdf

( ) 44 2008 5 34 Journal of Northw est Normal University ( Natural Science) Vol44 2008 No 5 基于STRAIGHT 算法的汉语语音morphing 方法 1 1 2 甘振业 , 杨鸿武 , 蔡莲红 ( 1 , 730070; 2 , 100084) : 提出了一种新的基于 ST RAIGHT 算法的汉语语音morphing 方法. 通过标注源和目标ST RAIGHT 谱上的 特征点, 并利用线性和对数叠加的方法实现对 谱的 morphing; 通过插值的方法对基 进行 morphing . 实验结果表 明, morphing 后的语音在语义特征不变的情况下, 保持了源和目标语音的特征, morphing 的结果获得了高质量的合 成语音, MOS 得分为3 87 分. : STRAIGHT 算法; 汉语语音; morphing; 语音修改; 基 : T P 391 : A : 1001988 (2008) A Chinese voice morphing method based on ST RAIGHT 1 1 2 GAN Zhenye , YAN G Hongw u , CAI Lianhong ( 1 College of Physics and Electronics Engineering, Northwest Normal University , Lanzhou 730070, Gansu, China; 2 Department of Com puter Science and Technology, Tsinghua University, Beijing 100084, China) Abstract: T he paper presents a new voice morphing algorithm based on STRAIGHT . By exploiting the anchoring points of target and source speech spectra, the spectrum morphing via linear and log add is realized, and the pitch morphing is also realized by w ay of value insertion. T he result show s that the morphed speech gets a new speaker identity w hile preserving the original content. T hrough this the high quality synthesized speech is obtained w ith a MOS score of 387. Key words: STRAIGHT ; Chinese voice; morphing; speech modification; pitch [ 1 ] , [ 13] [ 57] morphing . . , , , [ 4 ]