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Synthesis and sound design · updated 2026-08-16

PULSE WIDTH MODULATION

Sweeping the duty cycle of a square wave. The harmonic content shifts as it moves, which is why one oscillator can sound like two.

Analogue synthesizer panel with patch cables, knobs and sliders in close focus

SOURCES AND CITATIONS

Free, primary references for pulse width modulation — standards bodies, manufacturers, government offices and university course material.

RELATED TERMS IN SYNTHESIS AND SOUND DESIGN

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