FFT Flowgraph Notebook

The fast fourier transform revolutionised signal processing when discovered in the 60's. Sure, speed up any nontrivial algorithm by an order of magnitude or so and the world will beat a path to your door. But the FFT was more. It was like the world had been using wooden mousetraps to catch mice and was suddenly handed a flying rocket-powered supercat with laserkill eye beams and satellite positioning that had hacked into the Mouse, Inc. mainframe. Its legacy are millions of tiny real-time signal processing applications residing on embedded systems that embetter every facet of life, from phone to car, soup to nuts, and cradle to grave. Black and white flowgraph of 8-bit Fast Fourier Transform. Customisable.