计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (30): 125-127.DOI: 10.3778/j.issn.1002-8331.2010.30.037

• 数据库、信号与信息处理 • 上一篇    下一篇

变滑动窗的话者转换算法

康广玉1,3,郭世泽2,孙圣和1   

  1. 1.哈尔滨工业大学 自动化测试与控制系,哈尔滨 150001
    2.总参五十四所
    3.天津工程师范学院 自动化系,天津 300222
  • 收稿日期:2009-03-24 修回日期:2009-06-04 出版日期:2010-10-21 发布日期:2010-10-21
  • 通讯作者: 康广玉

Speaker transformation using length-variable moving window

KANG Guang-yu1,3,GUO Shi-ze2,SUN Sheng-he1   

  1. 1.Department of Automatic Test and Control,Harbin Institute of Technology,Harbin 150001,China
    2.No.54 Institute from Headquarters of the General Staff
    3.Tianjin University of Technology and Education,Tianjin 300222,China
  • Received:2009-03-24 Revised:2009-06-04 Online:2010-10-21 Published:2010-10-21
  • Contact: KANG Guang-yu

摘要: 话者转换就是将A的语音转换为具有B发音特征的语音而保持内容不变。发音时基音周期是变化的,在语音转换的两话者特征参数匹配阶段,由于窗内语音信号周期不同,采用固定窗进行语音参数提取会造成了一定程度的匹配误差。提出的变滑动窗是按语音信号的基音周期变化来选择不同长度的滑动窗进行语音分割,这使得每个窗内的包含相同周期的语音信号,从而消除了由语音信号不同产生的参数差异。实验证明该方法提高了话者转换的效果。

关键词: 话者转换, 变滑动窗, 高斯混合模型(GMM)

Abstract: Speaker transformation is that the speech of A is transformed to one of the B but the content of speech is not changeable.The pitch period is changeable during the pronunciation.The matching of feature parameters of two kinds of speech of speaker transformation applies moving window to extract the parameters of speech.Owing to the difference of period of speech signal,the matching error occurs.The proposed length-variable moving window algorithm is to select the different length moving window for speech segmentation,which caused each window to contain the same period of speech signal.Thus parameters difference caused by the difference of speech signal is eliminated.The experiments demonstrate the proposed algorithm enhance the performance of speech transformation.

Key words: speaker transformation, length-variable moving window, Gaussian Mixture Models(GMM)

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