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Basic OSC Example

This example demonstrates setting up OSC (Open Sound Control) communication in ossia score.

Overview

OSC is a protocol for communication between multimedia devices, software, and instruments. ossia score provides native OSC support for sending and receiving messages.

Setting up an OSC device

To use OSC in ossia score:

  1. Open the Device Explorer panel
  2. Click Add Device
  3. Select OSC from the protocol list
  4. Configure the connection:
    • Host: IP address of the remote device (or localhost)
    • Input port: Port to receive messages
    • Output port: Port to send messages

OSC addresses

OSC uses a hierarchical address system similar to file paths:

/synth/filter/cutoff
/lights/fixture1/red
/robot/motor/speed

Sending OSC messages

To send OSC from ossia score:

  1. Create an automation or process that outputs values
  2. Connect it to an OSC address in the Device Explorer
  3. During playback, values are sent as OSC messages

Receiving OSC messages

To receive OSC in ossia score:

  1. Configure the input port on your OSC device
  2. Addresses received appear in the Device Explorer
  3. Use them as triggers or parameter sources

Common OSC applications

OSC is used to communicate with:

  • Software synthesizers (SuperCollider, Max, Pd)
  • VJ software (Resolume, VDMX, TouchDesigner)
  • Lighting controllers
  • Motion tracking systems
  • Custom hardware (Arduino, Raspberry Pi)
  • Mobile apps (TouchOSC, Lemur)

OSCQuery

ossia score also supports OSCQuery, an extension that allows:

  • Automatic parameter discovery
  • Type information
  • Value ranges
  • Bidirectional sync

Try it

Set up an OSC device and connect it to another application to see messages flowing between them!

Learn more