A Semi-Virtual Violin For Investigations Into Sound Quality And Musician-Instrument Interaction
Friedrich V. Turkheim, Thorsten Smit, Robert Mores · University of Michigan Library Repository · 2010
This paper presents a semi-virtual violin research platform which consists of a silent generator violin and a modifiable virtual resonance body.The real-time platform is developed with particular emphasis on highly realistic sound behaviour, haptic experience, and visual properties.Thus, the platform allows for experiments on perceived violin sound quality and musician to instrument interaction together with professional violinists.Binaural transfer functions of real violins measured at the player's hearing position serve as starting point for spectral manipulations.The virtual body can be modified in terms of the positions and amplitudes of individual resonances and resonance areas.A filtering technique is described which enables changes of the magnitude spectrum by using a system of second-order peak filters.In addition, other components along the signal chain are described, such as a specific impulse response measurement technique, a generator violin, and an equalization process for achieving authentic and traceable sound properties.