实现语音的采集、量化、控制、频谱显示功能。整个程序是通过windows平台下，使用VC++6.0的库函数实现声卡的信号采集从而生成wave文件；之后，对信号进行FFT，并在windows窗口下完成频谱显示。-Voice of the collection, quantification, control, spectrum display function. The whole process through the windows platform, the use of VC++ 6.0 of the library functions achieve the sound card to generate wave signal acquisition documents　after the signal FFT, and windows to complete the spectrum display window.