| SMV噪声抑制模块的分析和改进 |
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| 引用本文： | 黄松华,叶利剑,王尧.SMV噪声抑制模块的分析和改进[J].电声技术,2010,34(3):72-74,81. |
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| 作者姓名： | 黄松华 叶利剑 王尧 |
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| 作者单位： | AAC声学科技南京研发中心,江苏,南京,210009 |
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| 摘 要： | 介绍了可选模式声码器（SMV）算法的噪声抑制模块的原理，结合实例对该模块降噪的不足进行了分析。针对这些不足，结合谱减法的特点提出了改进方法。测试表明，所提出的改进算法能达到较好的降噪效果。
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| 关 键 词： | 可选模式声码器 噪声抑制 谱减法 |
Analysis and Improvement of SMV Noise Reduction Module |
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| HUANG Song-hua,YE Li-jian,WANG Yao.Analysis and Improvement of SMV Noise Reduction Module[J].Audio Engineering,2010,34(3):72-74,81. |
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| Authors: | HUANG Song-hua YE Li-jian WANG Yao |
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| Institution: | (AAC Acoustic Technology Holding Nanjing R＆D Center, Nanjing 210009, China) |
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| Abstract: | The principle of SMV（Selectable Mode Vocode） noise reduction module is introduces, and its shortcomings based on practical examples are analyzed A new way to improve noise reduction effect of the SMV module by combining it with the features of the spectral subtraction method is proposed. Test results shows that it can reduce noise better. |
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| Keywords: | SMV noise reduction spectral subtraction |
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