- sine wave: smooth, soft. Only 1 harmonic = 1 frequency
- often used as a sub-bass to double synth sounds
- triangle wave: between sine & square wave in softness; still leans softer
- square wave: hollow, old video-games-ish. More harmonics than sine = richer sound
- pulse width: adjusts sizing contrast by thickness between waves
- ↑ asymmetry of wave = ↑ nasal/metallic sound (like sawtooth)
- controlled by Pulse Width Modulation in Serum
- metallic and nasal
- sawtooth: aggressive and richer, fuller in harmonics
- fuller in harmonics → better candidate to work with filters
- best for aggressive bass, big horn stabs
