Carla is a fully-featured audio plugin host, with support for many audio drivers
and plugin formats.

Features:
* LADSPA, DSSI, LV2 and VST2, VST3 and AU plugin formats
* SF2/3 and SFZ sound banks
* Internal audio and midi file player
* Automation of plugin parameters via MIDI CC
* Remote control over OSC
* Rack and Patchbay engine modes, plus Single and Multi-Client if using JACK
* Native audio drivers (ALSA, DirectSound, CoreAudio, etc)
  and low-latency (ASIO and JACK)

WWW: https://github.com/falkTX/Carla