对于原始音频信号进行高通、低通、带通、带阻滤波（含GUI文件），可以手动设置噪声信号，并对比染噪前和滤波后的信号区别。-For the original audio signal high-pass, low pass, band pass, band stop filter (with GUI files), you can manually set the noise signal, and compares the difference signal noise before transfection and filtered.