labview实现的滤波器功能，能够自行生成波形滤波，也可以读取文件滤波-labview filter function to achieve, can self generate waveform filtering, you can also read the file filter

采集声音信号，设计滤波器，对声音信号进行滤波消噪-Voice signal, filter design, the voice signal filtering de-noising