着麦克风发点声音看看程序画面显示,本程序演示了声音的快速FFT变换(需要声卡和麦克风),对分析显示其各频率分量的程序-Point the voice of the microphone to see if the procedure showed that this procedure demonstrated the voice of the fast FFT transform (the need for sound card and microphone), the analysis shows that its various frequency components of the program