The vBow: A Haptic Musical Controller Human-Computer Interface.
Charles S. Nichols · University of Michigan Library Repository · 2000
The vBow senses the violinist's bow stroke through the encoder of a servo driven by a cable, which is wrapped around a capstan attached to the shaft of the motor, and secured to either end of the virtual bow. The servo engages the bow, simulating friction and vibration of the string on the bow, according to the velocity of the performer's stroke. The result is a musical controller capable of simulating the complex interaction between a violinist's bow stroke, an acoustic violin's physical response, and the violinist's reaction to the force-feedback of the acoustical system.