使用卡尔曼滤波对语音信号进行增强，并显示出各个状态下的语音信号，注释非常清楚，适合初学者使用。里面有对应语音，注意文件夹位置修改就好。(Calman filter is used to enhance the speech signal and display the speech signal in each state. The annotation is very clear and suitable for beginners. There are corresponding speech, pay attention to modify folder location is good.)