Your LED Art Should Dance to the Music, Not Just Blink Randomly

Via YouTube — ESP32 project demonstrating audio-reactive LED matrix What FFT Actually Does for Your Installation FFT stands for Fast Fourier Transform. It is a mathematical operation that takes a signal in the time domain (amplitude over time) and converts it into the frequency domain (how much of each frequency is present at that moment). Your microphone captures a waveform. That waveform contains everything mixed together: bass, mids, highs, transients, silence. FFT separates it into bins. Eac