Utility
Utility functions for common audio tasks like output, MIDI conversion, and signal processing helpers.
Utility functions for common audio tasks like output, MIDI conversion, and signal processing helpers.
out
Audio Output - Send signal to speakers.
| Param | Type | Description |
|---|---|---|
| L | signal | Left channel |
| R | signal | Right channel (optional, defaults to L) |
Aliases: output
Every Akkado patch needs an out() to produce sound. Pass one signal for mono, two for stereo.
// Mono output (same signal to both speakers)
osc("sin", 440) |> out(%, %)// Stereo output (different signals)
osc("sin", 440) |> out(%, osc("sin", 442))// Panned signal
osc("sin", 440) * 0.7 |> out(%, % * 0.3)mtof
MIDI to Frequency - Convert MIDI note number to frequency in Hz.
| Param | Type | Description |
|---|---|---|
| note | signal | MIDI note number (0-127) |
Converts MIDI note numbers to frequencies using equal temperament. Middle C (C4) is note 60 = 261.6 Hz.
// Middle C
sin(mtof(60)) |> out(%, %)// A4 (MIDI note 69 = 440 Hz)
sin(mtof(69)) |> out(%, %)// Chromatic scale using modulation
sin(mtof(48 + osc("phasor", 2) * 12)) |> out(%, %)dc
DC Offset - Constant value generator.
| Param | Type | Description |
|---|---|---|
| offset | number | Constant value to output |
Outputs a constant value. Useful for mixing with signals or providing a static parameter.
// Use as constant multiplier
osc("sin", 440) * dc(0.5) |> out(%, %)slew
Slew Rate Limiter - Smoothly transitions between values.
| Param | Type | Description |
|---|---|---|
| target | signal | Target value |
| rate | number | Slew rate (higher = faster) |
Limits how fast a signal can change, creating smooth transitions. Great for portamento or smoothing control signals.
// Portamento effect (smooth pitch changes)
sin(slew(mtof(48 + osc("sqr", 2) * 12), 10)) |> out(%, %)// Smooth filter sweep
saw(110) |> lp(%, slew(200 + osc("sqr", 0.5) * 2000, 5)) |> out(%, %)sah
Sample and Hold - Captures a signal when triggered.
| Param | Type | Description |
|---|---|---|
| in | signal | Input signal to sample |
| trig | trigger | When to capture |
Samples the input signal each time the trigger fires and holds that value until the next trigger. Classic modular synth technique.
// Random pitches
sin(mtof(48 + sah(osc("noise") * 24, trigger(4)))) |> out(%, %)// Stepped filter
saw(110) |> lp(%, 200 + sah(osc("noise") * 2000, trigger(2))) |> out(%, %)clock
Master Clock - Returns the global clock signal.
No parameters.
Returns the master clock signal synchronized to the BPM. Useful for building custom timing logic.
// Clock-synced modulation
sin(440 + clock() * 100) |> out(%, %)