采用谱减法的语音降噪实现代码，适用于语音和音频系统中，可直接调用。-Speech noise reduction using spectral subtraction implementation code, for voice and audio systems, can be called directly.

采用winner的语音降噪实现代码，适用于语音和音频系统中，可直接调用。-Speech noise reduction using Winner filter implementation code, for voice and audio systems, can be called directly.