FM Tutorial

The FM Tutorial Chrome extension is an interactive tool that demonstrates how frequency modulation (FM) synthesis generates sounds in synthesizers and keyboards. It plays FM sounds while visually displaying the carrier wave, modulator wave, the resulting modulated waveform, and their power spectra—including real and imaginary parts.

Users can adjust key parameters such as the modulation index (depth of modulation), carrier phase, and frequencies of both carrier and modulator to explore their effects on the sound and waveforms in real-time. The app includes intuitive gestures for toggling spectra views and zooming, alongside helpful, detailed guides to understand FM synthesis concepts. This extension is ideal for musicians, sound engineers, and learners wanting to visualize and understand the principles behind FM synthesis and sound design.