计算机工程与应用2009，Vol.45Issue(31)：125-127,153,4.DOI:10.3778/j.issn.1002-8331.2009.31.037
二次离散小波变换的语音增强方法
Method for speech enhancement based on twice discrete wavelet transforms
摘要
Abstract
An algorithm based on twice discrete wavelet transform for speech enhancement is presented.DWT is used to process the noisy speech.DWT is employed again for the discrete detail coefficients.The thresholds are selected to de-noise the signals using various rules.The de-noised signals are reconstructed.The experiment results show that this method can obtain a well performance and also can enhance the definition and understanding of the speech.关键词
语音增强/离散小渡变换/噪声估计Key words
speech enhancement/Discrete Wavelet Transform(DWT)/noise estimation分类
信息技术与安全科学引用本文复制引用
孙浩,袁慧梅..二次离散小波变换的语音增强方法[J].计算机工程与应用,2009,45(31):125-127,153,4.基金项目
北京市科技新星基金项目(Beijing Technology new star Foundation of China under Grant No.2006858). （Beijing Technology new star Foundation of China under Grant No.2006858）
