Originally Posted by Ommie
lol wuts dat
Taking a signal that is a function of some particular sampled rate of time and mapping it out across the frequency domain. Things like high-pass filters or noise-removal filters use the Fourier-ized version of a specific signal to fuck with frequencies and kill digital noise and shit. It's basically blackfuckingmagic, which I have come to accept will comprise the rest of my professional career as an electrical engineer.