采用快速傅立叶变换（FFT)离散傅里叶变换的一种快速算法，来实现音频频谱变化，在32*64双色点阵上显示音频频谱 16分频-A discrete Fourier transform using a fast Fourier transform (FFT) a fast algorithm to achieve changes in the audio spectrum, the audio spectrum 16 is divided in a 32* 64-color dot matrix

单一频率DFP离散傅里叶变换，超省时 接收直接变换成单一频率的模-The single frequency DFP the discrete Fourier transform, ultra Province receiving mold directly converted into a single frequency

使用LPC2129实现离散傅里叶变换和快速傅里叶变换。可使用频谱发生器给定输入，对该输入进行傅里叶变换并求出输入频率。-Using LPC2129 discrete Fourier transform and Fast Fourier Transform. Spectrum generator can be used for a given input, and performing Fourier transform of the input and of the input frequenc