计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (7): 146-148.
• 数据库、信号与信息处理 • 上一篇 下一篇
程 塨，郭 雷，刘爱峰，赵天云
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CHENG Gong，GUO Lei，LIU Aifeng，ZHAO Tianyun
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摘要： 针对非平稳噪声环境和低信噪比的情况，提出了一种基于低频区语音特性的非平稳噪声估计方法，通过构造一个时变的权值，实现对噪声的实时估计，同时结合人耳听觉掩蔽效应，利用估计出的噪声自适应设定增强系数。仿真实验表明，该方法能够较好地抑制背景噪声，提高信噪比，减少语音失真。
关键词: 非平稳噪声估计, 听觉掩蔽, 语音增强, 信噪比
Abstract: Aiming at non-stationary noise environment and low SNR，a non-stationary noise estimation method is proposed by using low-frequency regions of noisy speech，a weighting factor is used to track the time variation of noise.Then，the estimated noise can be used to self-adaptively adjust enhancement parameters according to auditory masking properties.The experiment result shows that the method is effective to reduce background noise，improve SNR and decrease speech distortion.
Key words: non-stationary noise estimation, auditory masking, speech enhancement, signal to noise ratio
程 塨，郭 雷，刘爱峰，赵天云. 基于噪声估计和听觉掩蔽效应的语音增强[J]. 计算机工程与应用, 2011, 47(7): 146-148.
CHENG Gong，GUO Lei，LIU Aifeng，ZHAO Tianyun. Speech enhancement based on noise estimation and auditory masking properties[J]. Computer Engineering and Applications, 2011, 47(7): 146-148.
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http://cea.ceaj.org/CN/Y2011/V47/I7/146
