一个用python开发的音频信号采集与分许程序，主要功能是：用计算机声卡采集数据；对信号进行傅里叶变换；原始信号和信号频谱图形显示。-A the python the developed audio signal acquisition Xu program, the main function: collecting data with a computer sound card　Fourier transform of the signal　graphical display of original signal and the signal spectrum.