Multirate Extensions for Model-Based Synthesis of Plucked String Instruments

Vesa Välimäki and Tero Tolonen

Helsinki University of Technology, Laboratory of Acoustics and Audio Signal Processing, P.O. Box 3000, FIN-02015 HUT, Espoo, Finland

ABSTRACT

We describe new developments for model-based sound synthesis of plucked string instruments. The synthesis model is based on the extended Karplus-Strong algorithm. A new implementation approach where part of the excitation signal is modeled with interpolated low-frequency resonators and the decay part of the tones using a multirate string model is introduced. The resonators allow for a full parametrization of the lowest body modes. The computational burden and memory requirements of plucked string synthesis are decreased using the proposed techniques without degrading the sound quality.

This paper was published in the Proceedings of the 1997 International Computer Music Conference, pp. 244-247, Thessaloniki, Greece, Sept. 25-30, 1997.

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This URL: http://www.acoustics.hut.fi/~vpv/publications/icmc97-mr.htm
Last modified: 15 July, 1998
Author: Vesa Välimäki