🎶 Audio Wave Visualizer — 2D Fourier Phasors and Spectrum

2D companion of the audio wave visualizer: additive synthesis of square, sawtooth, triangle and pulse waves from rotating phasor chains, a line spectrum in Hz, a phase-scramble control, and checks of Parseval's theorem and the 8.95 percent Gibbs overshoot.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install