来自2013年的双域滤波算法，文章和对应的matlab代码，实现简单但性能堪比BM3D算法-the dual-domain image denoising method. The article and relevant matlab code are provided. It is very easy to carry out but its performance is comparable to the BM3D method

几种经典的语音降噪源代码，来自书籍《MATLAB在语音信号分析与合成中的应用》(Several classic speech denoising source code, from the book "MATLAB in speech signal analysis and synthesis application")