音响效果程序，里面有三个小程序，都调试通过了，硬件调通了．-acoustics procedures, there are three small programs, through debugging, hardware-through.

一种基于DSP的快速傅里叶变化FFT算法的程序，是声学、语音、电信号处理的重要工具。-A DSP based fast Fourier change program FFT algorithm, is an important tool of acoustics, speech, and signal processing.