Signal processing is the art and science of manipulating information encoded in signals — audio waves, radio transmissions, images, and sensor data. At its core lies the Fourier transform, which reveals that every complex signal is just a sum of simple sine waves at different frequencies.
These simulations let you decompose signals into their frequency components, filter out noise in real time, explore the Nyquist-Shannon sampling theorem, visualize convolution, and modulate carrier waves with AM and FM techniques. Adjust parameters and watch the mathematics come alive on screen.