A self-sensing haptic actuator for tactile interaction with physical modelling synthesis
File(s)
Published version
Author(s)
Davison, Matthew
Webb, Craig J
Ducceschi, Michele
McPherson, Andrew P
Type
Conference Paper
Abstract
The use of transducers to excite physical modelling synthesisers with real-world audio signals is a well established practice within the digital musical instrument design community, yet it is normally presented as a unidirectional process – energy is transferred into the system from human to instrument. In this paper, a novel approach to tactile interaction with physical modelling synthesis is presented, through the use of a self-sensing vibrotactile transducer. This enables simultaneous collocated sensing and haptic actuation with a single moving coil transducer. A current drive amplifier is used for haptic actuation, using signals derived from the physical modelling synthesiser. The varying impedance of the transducer (due to changes in the mechanical damping) enables the sensing of force applied upon the device whilst also acting as a pickup to excite the physical model, all with simultaneous haptic actuation. A digital filter equivalent of the transducer’s impedance is used to prevent feedback in the system, allowing simultaneous excitation and haptic actuation without self-oscillation
Date Acceptance
2024-04-12
Citation
Proceedings of the International Conference on New Interfaces for Musical Expression, pp.574-581
ISSN
2220-4806
Publisher
NIME Community
Start Page
574
End Page
581
Journal / Book Title
Proceedings of the International Conference on New Interfaces for Musical Expression
Copyright Statement
Licensed under a Creative Commons Attribution
4.0 International License (CC BY 4.0). Copyright
remains with the author(s).
4.0 International License (CC BY 4.0). Copyright
remains with the author(s).
License URL
Identifier
http://nime.org/proceedings/2024/nime2024_84.pdf
Source
The International Conference on New Interfaces for Musical Expression (NIME 2024)
Subjects
collocation
haptics
physical modelling
self-sensing
tactile
vibrotactile
Publication Status
Published
Start Date
2024-09-04
Finish Date
2024-09-06
Coverage Spatial
Utrecht, The Netherlands
Date Publish Online
2024-10-08