该程序运用NLMS算法对两端语音信号进行分离，模型采用了回波抵消器的数学模型，并附加了处理后的语音信号，效果明显！-The program ends using NLMS algorithm for speech signal separation, model Echo Canceller using a mathematical model and attached processed voice signal, the effect obviously!

对语音信号中叠加上不同的噪声，用NLMS方法对带噪语音进行消噪处理。-Different noise superimposed on the speech signal, the NLMS method for Noisy Speech Denoising.

New algorithm for speech compression noise, a noise reduction of speech based vad method. This new algorithm derived vad technology and spectral subtraction, it firstly deal with the noise signal vad, then the masking threshold is based on perception