The vBow: a virtual violin bow controller for mapping gesture to synthesis with haptic feedback

Authors:
Charles Nichols
Affiliations:
Center for Computer Research in Music and Acoustics (CCRMA), Stanford University, 660 Lomita, Stanford, CA 94305-8180, USA E-mail: cnichols@ccrma.stanford.edu URL: http://www.charlesnichols.com/
Venue:
Organised Sound
Year:
2002

Citing 1
Cited 3

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Playability evaluation of a virtual bowed string instrument

NIME '03 Proceedings of the 2003 conference on New interfaces for musical expression
Synthesized strings for string players

NIME '04 Proceedings of the 2004 conference on New interfaces for musical expression
The Carillon and Its Haptic Signature: Modeling the Changing Force-Feedback Constraints of a Musical Instrument for Haptic Display

HAID '09 Proceedings of the 4th International Conference on Haptic and Audio Interaction Design

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Abstract

The vBow, a virtual violin bow musical controller, has been designed to provide the computer musician with most of the gestural freedom of a bow on a violin string. Four cable and servomotor systems allow for four degrees of freedom, including the lateral motion of a bow stroke across a string, the rotational motion of a bow crossing strings, the vertical motion of a bow approaching and pushing into a string, and the longitudinal motion of a bow travelling along the length of a string. Encoders, attached to the shaft of the servomotors, sense the gesture of the performer, through the rotation of the servomotor shafts, turned by the motion of the cables. The data from each encoder is mapped to a parameter in synthesis software of a bowed-string physical model. The software also sends control voltages to the servomotors, engaging them and the cables attached to them with a haptic feedback simulation of friction, vibration, detents and elasticity.