Towards fast multi-point force and hit detection in tabletops using mechanically intercoupled Force Sensing Resistors

TitleTowards fast multi-point force and hit detection in tabletops using mechanically intercoupled Force Sensing Resistors
Publication TypeConference Paper
Year of Publication2012
Conference NameNIME'12
AuthorsBosi, M., & Jordà S.
Conference Start Date21/05/2012
Conference LocationAnn Arbor, Michigan, USA
Keywordscomplementary sensing, fast low-noise analog to digital conversion, force sensing resistor, low-latency sensing, mechan- ical coupling, micro controller, multimodal systems, tangible tabletop interfaces
AbstractTangible tabletop musical interfaces allowing for a collaborative real-time interaction in live music performances are one of the promising fields in NIMEs. At present, this kind of interfaces present at least some of the following characteristics that limit their musical use: latency in the inter- action, and partial or complete lack of responsiveness to gestures such as tapping, scrubbing or pressing force. Our current research is exploring ways of improving the quality of interaction with this kind of interfaces, and in particular with the tangible tabletop instrument Reactable. In this paper we present a system based on a circular array of mechanically intercoupled force sensing resistors used to obtain a low-latency, affordable, and easily embeddable hardware system able to detect surface impacts and pressures on the tabletop perimeter. We also consider the option of completing this detected gestural information with the sound information coming from a contact microphone attached to the mechanical coupling layer, to control physical modelling synthesis of percussion instruments.
preprint/postprint documenthttp://mtg.upf.edu/system/files/publications/257_Final_Manuscript.pdf
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