Draw each harmonic's amplitude on a bar canvas and watch the summed waveform update; sine, saw and square presets, phase randomize, and Web Audio playback at fixed gain.
Audio Before you run it: plays sound.
For games or crowded controls, open the demo in a new tab for the most room.
Synth Building Blocks · 18 labs
Playing a game or need more room? Open demo in a new tab
JavaScript runs this experiment. Open demo in a new tab