Oscillators

Oscillators are the primary sound sources in synthesis. The osc() function is the unified interface for all oscillator types.

osc

Generic Oscillator - Generates a waveform of the specified type.

Param	Type	Description
type	string	Waveform type (see below)
freq	signal	Frequency in Hz (not required for `"noise"`)

Waveform types

Type	Description
`"sin"`	Sine wave - pure tone, no harmonics
`"saw"`	Sawtooth wave - all harmonics, bright and buzzy
`"tri"`	Triangle wave - odd harmonics, softer than saw
`"sqr"`	Square wave - odd harmonics, hollow and punchy
`"phasor"`	0-1 ramp, useful for modulation and wavetables
`"ramp"`	Alias for phasor
`"noise"`	White noise (freq parameter ignored)

Pitched waveforms

// Sine wave (440 Hz)
sine(440) |> out(@)

// Sawtooth wave
saw(220) |> out(@)

// Triangle wave
tri(110) |> out(@)

// Square wave
sqr(110) * 0.3 |> out(@)

Phasor / Ramp

A phasor outputs a value that ramps from 0 to 1 over each cycle. Useful for driving wavetables, custom waveshaping, or as a modulation source.

// Use phasor for wavetable position
phasor(2) |> out(@)

// Create a sine from phasor using math sin()
sin(phasor(440) * 2 * 3.14159) |> out(@)

Noise

White noise contains equal energy at all frequencies. Useful for percussion, wind sounds, and as a modulation source. The frequency parameter is ignored.

// Raw noise
noise() * 0.3 |> out(@)

// Filtered noise for hi-hats
noise() |> hp(@, 8000) * ar(trigger(8), 0.001, 0.05) |> out(@)

// Noise sweep
noise() |> lp(@, 200 + sine(0.5) * 1000) |> out(@)

FM synthesis

FM synthesis modulates the carrier’s frequency input with another oscillator. See fm-synthesis for the full treatment.

// Simple FM
sine(440 + sine(5) * 10) |> out(@)