Sound Systems

Carla – Modular Audio Plugin Host

Carla is a comprehensive modular audio plugin host for Linux.

It can be used as a straightforward rack for loading effects and instruments or as a more elaborate patching environment where audio and MIDI are connected manually. Support for numerous plugin standards, sound-bank formats and audio backends makes Carla useful across recording, synthesis, live performance and experimental audio workflows.

This is free and open source software.

Key Features

  • Loads LADSPA plugins used by many long-established Linux audio applications.
  • Supports DSSI instruments and effects where that plugin format is still required.
  • Hosts LV2 plugins with support for their associated interfaces and metadata.
  • Can load Linux VST2 plugins in compatible environments.
  • Supports VST3 plugins for a wider selection of contemporary audio software.
  • Loads SF2, SF3 and SFZ sound banks for sample-based instruments.
  • Rack mode arranges plugins in a straightforward ordered processing chain.
  • Patchbay mode exposes ports and connections for more flexible signal routing.
  • JACK Multi-Client mode allows plugins to appear as separate JACK clients.
  • JACK Single-Client mode keeps hosted plugins within Carla’s own client structure.
  • Native ALSA audio support allows operation without requiring a JACK server.
  • Internal player can handle audio and MIDI files for testing or playback.
  • Plugin parameters can be mapped to MIDI continuous controllers.
  • OSC support enables remote control from compatible software and hardware setups.
  • Project files can preserve complex plugin and routing arrangements.
  • Carla itself can be loaded in compatible hosts for nested plugin workflows.
  • Bridge facilities help isolate plugins and accommodate differing plugin architectures.

Website: github.com/falkTX/Carla
Support:
Developer: Filipe Coelho
License: GNU General Public License v2.0

Carla in action

Carla is written in C++ and C. Learn C++ with our recommended free books and free tutorials. Learn C with our recommended free books and free tutorials.


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