论文信息 - Physical modeling of flageolet tones in string instruments

Physical modeling of flageolet tones in string instruments

This paper introduces a physical modeling method for synthesizing flageolet tones played on string instruments. Flageolet tones are generated when a player gently damps the vibrating string at a certain location, so that only those modes that have a nodal point at the damping location remain ringing. A physical model of the spatially damped string is implemented using a wave digital resistor connected to a digital waveguide string. Also, a commuted waveguide version is derived and analyzed. The model is able to realistically synthesize flageolet tones with both static and time-varying damping parameters. Synthesis results are presented and analyzed.

Jyri Tapani Pakarinen

[1] Mark Kahrs,et al. Applications of digital signal processing to audio and acoustics , 1998 .

[2] A. Fettweis. Wave digital filters: Theory and practice , 1986, Proceedings of the IEEE.

[3] Julius O. Smith,et al. Physical Modeling Using Digital Waveguides , 1992 .

[4] Matti Karjalainen,et al. Digital Waveguides versus Finite Difference Structures: Equivalence and Mixed Modeling , 2004, EURASIP J. Adv. Signal Process..

[5] Matti Karjalainen,et al. Plucked-string models: From the Karplus-Strong algorithm to digital waveguides and beyond , 1998 .

[6] Vesa Välimäki,et al. A time-domain approach to estimating the plucking point of guitar tones obtained with an under-saddle pickup , 2004 .

[7] Vesa Välimäki,et al. An Expressive Synthesis Model for Bowed String Instruments , 2000, ICMC.

[8] Unto K. Laine,et al. A model for real-time sound synthesis of guitar on a floating-point signal processor , 1991, [Proceedings] ICASSP 91: 1991 International Conference on Acoustics, Speech, and Signal Processing.