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清华大学学报(自然科学版)  2017, Vol. 57 Issue (1): 79-83    DOI: 10.16511/j.cnki.qhdxxb.2017.21.015
  电子工程 本期目录 | 过刊浏览 | 高级检索 |
基于高层信息特征的重叠语音检测
马勇1,2, 鲍长春1
1. 北京工业大学 电子信息与控制工程学院, 北京 100124;
2. 江苏师范大学 物理与电子工程学院, 徐州 221009
Overlapping speech detection using high-level information features
MA Yong1,2, BAO Changchun1
1. School of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China;
2. School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221009, China
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摘要 重叠语音是影响说话人分割性能的主要因素之一。该文提出了基于语音高层信息特征的重叠语音检测方法以提高说话人分割效果。首先用通用背景模型(universal background model,UBM)提取语音的语言学高层信息特征,并融合这些特征和Mel频率倒谱系数(Mel frequency cepstral coefficient,MFCC)特征建立隐Markov模型(hidden Markov model,HMM)检测重叠语音,然后对处理后的语音进行说话人分割。实验结果表明:对于由TIMIT语音库生成的数据集,该方法对重叠语音检测的错误率比单一采用MFCC特征有显著降低,而且说话人分割性能有明显的提高。
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关键词 重叠语音检测高层信息特征说话人分割    
Abstract:Overlapping speech is one of the main factors influencing the performance of speaker segmentation. This paper presents an overlapping speech detection method using a high-level information feature to improve the speaker segmentation results. A linguistic high-level information feature of the speech is extracted using the universal background model (UBM). Then, a hidden Markov model (HMM) is trained using the Mel frequency cepstral coefficients (MFCC) and the high-level information to detect overlapping speech. The result is then used for the speaker segmentation of the pre-processed speech. Tests on a dataset generated from the TIMIT database show that the error ratio for overlapping speech detection is significantly lower than the reference method using just the MFCC feature. The speaker segmentation is also significantly improved.
Key wordsoverlapping speech detection    high-level information feature    speaker segmentation
收稿日期: 2016-06-18      出版日期: 2017-01-20
ZTFLH:  TN912.3  
通讯作者: 鲍长春,教授,E-mail:baochch@bjut.edu.cn     E-mail: baochch@bjut.edu.cn
引用本文:   
马勇, 鲍长春. 基于高层信息特征的重叠语音检测[J]. 清华大学学报(自然科学版), 2017, 57(1): 79-83.
MA Yong, BAO Changchun. Overlapping speech detection using high-level information features. Journal of Tsinghua University(Science and Technology), 2017, 57(1): 79-83.
链接本文:  
http://jst.tsinghuajournals.com/CN/10.16511/j.cnki.qhdxxb.2017.21.015  或          http://jst.tsinghuajournals.com/CN/Y2017/V57/I1/79
  图1 不同数目说话人重叠语音rhops的值
  图2 不同数目说话人重叠语音rls的值
  图3 基于帧的类音素符号转换率提取
  图4 重叠语音和非重叠语音的高层信息特征对比
  图5 重叠语音检测的原理框图
  图6 四种特征的重叠语音检测性能对比
  表1 重叠语音检测对说话人分割性能的影响
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