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Physical Model of the Slide Guitar: An Approach Based on Contact Forces
Linköping University, Department of Science and Technology, Media and Information Technology. Linköping University, The Institute of Technology. (Sound and Video Technology)
2012 (English)In: Proceedings of Audio Engineering Society Convention 132, 2012Conference paper (Refereed)
Abstract [en]

In this paper we approach the synthesis of the slide guitar, which is a particular play mode of the guitar where continuous tuning of the tones is achieved by sliding a metal orglass piece, the bottleneck, along thestrings on the guitar neck side. The bottleneck constitues a unilateral constraint for the string vibration.Dynamics is subject to friction, scraping, textured displacement and collisions. The presented model is physically inspired and is based on a dynamic model of friction, together with a geometrical model of the textured displacements and a model for collisions of the string with the bottlenck. These models are suitablefor implementation in a digital waveguide computational scheme for the 3D vibration of the string, where continuous pitch bending is achieved by allpass filters to approximate fractional delays, friction is captured by nonlinear state-space systems in the slide junction and textured displacements by signal injection at avariable point in the waveguide.

Place, publisher, year, edition, pages
National Category
Media Engineering
URN: urn:nbn:se:liu:diva-78782OAI: diva2:535809
Audio Engineering Society Convention 132
Available from: 2012-06-27 Created: 2012-06-20 Last updated: 2012-06-27Bibliographically approved

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Evangelista, Gianpaolo
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Media and Information TechnologyThe Institute of Technology
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ReferencesLink to record
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