Supex

Supex = SuperCollider + Elixir

An Elixir wrapper for the music live-coding language SuperCollider. Supex communicates with SuperCollider’s sclang tool, letting you generate and control sound directly from Elixir.

• 🎧 Play basic oscillators with a clean, pipeable syntax
• 🔤 Send raw SuperCollider code when needed
• ⛔ Stop sounds by name

Built for musicians, coders, and live performers who want to use Elixir for audio synthesis.

👉 Requires sclang installed (sudo apt install sclang on Linux)

Installation

The package can be installed by adding supex to your list of dependencies in mix.exs:

def deps do
[
  {:supex, "~> 0.1.0"}
]
end

🔍 Learn SuperCollider basics

https://doc.sccode.org/Tutorials/Getting-Started/00-Getting-Started-With-SC.html

⚙️ Requirements:

SuperCollider's sclang must be installed. Example (Linux): sudo apt install sclang

🟢 Start the SuperCollider sclang server

iex> Supex.Sclang.start_link(:ok)

💡 Examples

️▶ Play a sine oscillator at 269 Hz and name it "y"; then stop it:

iex> import Supex
iex> osc |> freq(269) |> name("y") |> play
iex> osc |> name("y") |> stop

▶ Modulate volume of a sine wave using another sine as LFO:

iex> import Supex
iex> osc |> mul(osc |> freq(2) |> mul(0.4) |> add(0.5) |> lfo) |> play
iex> osc |> stop

▶ Modulate a pulse wave's frequency and width:

iex> import Supex
iex> osc(:pulse) |> freq("SinOsc.kr(0.4).range(169, 269)") |> width("SinOsc.kr(6.9).range(0.01, 0.8)")|> mul(0.3) |> name("x") |> play
iex> osc |> name("x") |> stop

🔤 Send a raw SuperCollider expression:

iex> import Supex
iex> "RLPF.ar(Pulse.ar([100, 250], 0.5, 0.1), XLine.kr(8000, 400, 5), 0.05)" |> play
iex> osc |> name("z") |> stop

⚠️ Disclaimer

SuperCollider and Supex can produce loud, sudden sounds.
Use volume control and a limiter to protect your ears.
Avoid hearing damage.