这是一个波动方程的计算程序，对理解复杂过程中的每一步的计算过程有很好的帮助,wave

程序运行就打开录音设备，同时输出其波形和经过FFT变化后的波形。-Program runs on the open recording equipment, while the output of its waveform and after changes in the waveform after FFT.

mp3等音频刻录及播放，有波形图的，可制作mp3播放器 -wav, mp3 and other audio recording and playback, there are waveforms, and can be made mp3 player