| 基于短时对数谱估计MMSE的语音增强算法研究 |
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| 引用本文： | 袁伟军,刘珩.基于短时对数谱估计MMSE的语音增强算法研究[J].电声技术,2007,31(10):59-62,65. |
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| 作者姓名： | 袁伟军 刘珩 |
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| 作者单位： | 中国农业大学,信息与电气工程学院,北京,100083;中国农业大学,信息与电气工程学院,北京,100083 |
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| 摘 要： | 结合语音激活检测(VAD)技术对短时对数谱估计最小均方误差(LSA-MMSE)语音增强算法进行了改进。通过实验表明,LSA-MMSE增强算法在消除背景噪声、增加语音清晰度和提高语音自然度等方面比谱减法更加有效。
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| 关 键 词： | 语音增强 短时谱估计 最小均方误差 |
| 文章编号： | 1002-8684（2007）10-0059-04 |
| 修稿时间： | 2007-06-06 |
Study of Speech Enhancement Based on MMSE Short Time Log-spectral Amplitude Estimator |
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| YUAN Wei-jun,LIU Heng.Study of Speech Enhancement Based on MMSE Short Time Log-spectral Amplitude Estimator[J].Audio Engineering,2007,31(10):59-62,65. |
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| Authors: | YUAN Wei-jun LIU Heng |
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| Affiliation: | College of Information and Engineering, China Agricultural University, Beijing 100083, China |
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| Abstract: | To improve the performance of communication system and clear the noise especially the background noise in real environment in noisy speech,a method of LSA-MMSE(Log-Spectral Amplitude-Minimum Mean Square Error)combined with advanced VAD speech enhancement is proposed.Compared with the spectral subtraction,results show that the method of LSA-MMSE combined with VAD speech enhancement is more effective than the spectral subtraction in terms of noise suppression and speech signal distortion. |
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| Keywords: | speech enhancement short-time spectrum analysis MMSE |
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