| 一种基于功率因数补偿的谱相减算法改进 |
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| 引用本文： | 沈晓东,李弼程.一种基于功率因数补偿的谱相减算法改进[J].河南科技大学学报(自然科学版),2011,32(1):29-32,118. |
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| 作者姓名： | 沈晓东 李弼程 |
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| 作者单位： | 1. 清华大学,电子工程系,北京,100084
2. 解放军信息工程大学,信息工程学院,河南,郑州,450002 |
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| 基金项目： | 国家自然科学基金项目(60872142) |
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| 摘 要： | 对带噪语音进行传统谱减增强后,会引入"音乐噪声",并造成语售可懂度急剧下降.针对这一缺点,本文提出了一种采用功率因数补偿的过减形式的谱相减算法,以提高语音可懂度.采用MATLAB对算法进行了仿真,仿真结果表明:该算法有效的抑制了背景噪声、减少了"音乐噪声",比传统谱相减算法有较大优越性.
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| 关 键 词： | 谱减 功率因数补偿 语音增强 音乐噪声 |
Improved Method of Spectral Subtraction Based on Power Factor Expiate |
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| SHEN Xiao-Dong,LI Bi-Cheng.Improved Method of Spectral Subtraction Based on Power Factor Expiate[J].Journal of Henan University of Science & Technology:Natural Science,2011,32(1):29-32,118. |
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| Authors: | SHEN Xiao-Dong LI Bi-Cheng |
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| Institution: | SHEN Xiao-Dong1,LI Bi-Cheng2 (1.Electronic Engineering College,Tsinghua University,Beijing 100084,China,2.Information Engineering College,PLA Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | Conventional spectral subtraction method brings music noise to speech mixed by noise.Music noise reduced the intelligibility of speech.Because of the disadvantage,a power factor expiate method was put forward to improve the intelligibility of speech mostly.MATLAB was used to realize the algorithm.The result shows that this algorithm restrains background noise and reduces music noise.The new algorithm has better advantage compared with conventional spectral subtraction method. |
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| Keywords: | Spectral subtraction Power factor expiate Speech enhancement Music noise |
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