Fast Fourier Transformation

This program will sample sound from your Audiodevice and apply a Fouriertransformation to the sample buffer. This Program has a GUI and will plot the FFT in a window. You can change BufferSize and SampleRate in order to change the FFT resolution. This is a complete VisualC++ Project and is written in pure C. The code has many comments and you should be able to follow it up easily. Have fun playing with it.