supriya 24.7b0

A Python API for SuperCollider

Supriya

Supriya is a Python API for SuperCollider.

Supriya lets you:

• Boot and communicate with SuperCollider's scsynth synthesis engine: servers in realtime.

• Compile SuperCollider SynthDefs natively in Python code

• Explore nonrealtime composition with scores.

• Build time-agnostic asyncio-aware applications with the context interface.

• Schedule patterns and callbacks with tempo- and meter-aware clocks

• Integrate with IPython, Sphinx and Graphviz

Quickstart

1. Get Supriya

Install from PyPI:

pip install supriya

Or from source:

git clone https://github.com/supriya-project/supriya.git
cd supriya
pip install -e .

2. Get SuperCollider

Get SuperCollider from http://supercollider.github.io/.

3. Boot the server

Start your Python interpreter and import Supriya:

>>> import supriya

Boot the SuperCollider server:

>>> server = supriya.Server().boot()

4. Build a SynthDef

Import some classes:

>>> from supriya import Envelope, synthdef
>>> from supriya.ugens import EnvGen, Out, SinOsc

Make a synthesizer definition:

>>> @synthdef()
... def simple_sine(frequency=440, amplitude=0.1, gate=1):
...     sine = SinOsc.ar(frequency=frequency) * amplitude
...     envelope = EnvGen.kr(envelope=Envelope.adsr(), gate=gate, done_action=2)
...     Out.ar(bus=0, source=[sine * envelope] * 2)
...

Visualize the SynthDef (requires Graphviz):

>>> supriya.graph(simple_sine)

Allocate it on the server:

>>> _ = server.add_synthdefs(simple_sine)

... and then sync the server before proceeding to ensure the SynthDef has been fully parsed by scsynth:

>>> _ = server.sync()

5. Create some nodes

Create and allocate a group:

>>> group = server.add_group()

Create some synthesizers with the previously defined synthesizer definition, and allocate them on the server as a child of the previously created group:

>>> for i in range(3):
...     _ = group.add_synth(simple_sine, frequency=111 * (i + 1))
...

Query the server's node tree:

>>> print(server.query_tree())
NODE TREE 0 group
    1 group
        1000 group
            1003 simple_sine
                amplitude: 0.1, frequency: 333.0, gate: 1.0
            1002 simple_sine
                amplitude: 0.1, frequency: 222.0, gate: 1.0
            1001 simple_sine
                amplitude: 0.1, frequency: 111.0, gate: 1.0

6. Release and quit

Release the synths:

>>> for synth in group.children[:]:
...     synth.free()
...

Quit the server:

>>> server.quit()

License

This library is made available under the terms of the MIT license.