| 基于语音质量参数的语音传输信道检测算法 |
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| 引用本文： | 陈斌,张连海,牛铜,屈丹.基于语音质量参数的语音传输信道检测算法[J].信息工程大学学报,2011,12(3):322-326. |
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| 作者姓名： | 陈斌 张连海 牛铜 屈丹 |
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| 作者单位： | 信息工程大学信息工程学院,河南郑州,450002 |
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| 基金项目： | 国家自然科学基金，国家863计划资助项目 |
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| 摘 要： | 针对不同编码算法对语音质量的影响,采用语音质量改进参数构造特征矢量,提出了一种基于SVM多级判决的语音编码检测算法,实现了对不同信道的识别。采用统计方法对这组参数的区分性进行了分析,在此基础上设计了一种高效的信道检测方案,结合实际数据,测试了算法性能,并分析了语音长度对性能的影响。实验结果表明,该算法能有效地提高信道检测准确率。
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| 关 键 词： | 信道检测 语音质量参数 声道连续性 高阶累计量 多级判决 |
Method of Speech Transmission Channel Detection Based on Speech Quality Parameters |
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| CHEN Bin,ZHANG Lian-hai,NIU Tong,QU Dan.Method of Speech Transmission Channel Detection Based on Speech Quality Parameters[J].Journal of Information Engineering University,2011,12(3):322-326. |
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| Authors: | CHEN Bin ZHANG Lian-hai NIU Tong QU Dan |
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| Affiliation: | CHEN Bin,ZHANG Lian-hai,NIU Tong,QU Dan(Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | According to the different speech quality distortion caused by different coding algorithms,a speech transmission channel detection method based on SVM multi-stage decision is proposed using the feature vectors made of modified speech quality parameters.After analyzing the discriminability of the parameters using statistical approach,a high-efficient channel detection scheme is designed.The performance of the method is tested based on speech collected from these channels,and the influence by speech length on... |
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| Keywords: | channel detection speech quality parameters vocal-tract consistent higher-order cumulant multi-stage decision |
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