数字信号处理中频率响应、相关函数、fft、各种滤波器的C语言实现（各文件有功能说明）-The C edition of many DSP functions such as Frequency function,fft,filters and so on

以C语言为模板，详细讲解了数字信号处理中的课中处理过程，处理函数的C语言实现。包括随机数生成，更重FFT算法的C实现，卷积和滤波器。-The C language as a template, gave a detailed course in digital signal processing in the process, the handler of the C language. Including random number generation, more importantly,

C语言实现FFT运算，运用FFT蝶形算法的原理，实现离散数列的快速傅里叶变换，常用于数字滤波器的设计-C language FFT computation