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

Features:
* LADSPA, DSSI, LV2 and VST plugin formats
* GIG, SF2 and SFZ sound banks
* Internal audio and midi file player
* Automation of plugin parameters via MIDI CC
* Full OSC control
* Rack and Patchbay engine modes, plus Single and Multi-Client if using JACK
* Native audio drivers (ALSA, DirectSound, CoreAudio)
  and low-latency (ASIO and JACK)
* Transport sync with JACK or Ableton Link

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