Virtual acoustic instrument

Physics-based sound synthesis allows to shape the sound by modifying parameters that reference to real world properties of acoustic instruments. We present a hybrid physical modelling single-reed instrument, where a virtual tube is coupled to a real mouthpiece with a sensor-equipped clarinet reed. The tube model is provided as an opcode for Csound which is running on the low-latency embedded audio-platform Bela. An actuator is connected to the audio output and the sensor-reed signal is fed back into the input of Bela. The performer can control the coupling between reed and actuator, and is also provided with a 3D-printed slider/knob interface to change parameters of the tube model in real-time. Further implementation details can be found below. For example music performances visit:


  • A. Hofmann, V. Chatziioannou, S. Schmutzhard, G. Erdoğan and A. Mayer. The Half-Physler: An oscillating real-time interface to a tube resonator model. In Proc. NIME19, 2019.
  • A. Hofmann, S. Schmutzhard, M. Pàmies-Vilà, G. Erdogan and V. Chatziioannou. An opcode implementation of a finite difference viscothermal time-domain model of a tube resonator for wind instrument simulations. In Proc. Fifth International Csound Conference, 2019.