声卡数据采集，通过MATLAB进行声卡采集，通过串口将采集到的数据发送到FPGA开发板上。-Sound card data acquisition, through MATLAB for sound card collection, through the serial port will send the collected data to the FPGA development board.

简单的声卡的数据采集功能，可以将计算机中的声卡的数据采集到PC机上-Simple sound card data acquisition function, can the computer in the sound card data acquisition to the PC

通过api函数获取声卡音频数据，并进行FFT变换，将频谱图显示出来。(Data sound card are obtained by api functions and converted with FFT to frequency graph.)