Proceedings of Meetings on Acoustics · *Corresponding author's address: Laboratoire de Mécanique...
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Proceedings of Meetings on Acoustics Volume 19, 2013 http://acousticalsociety.org/ ICA 2013 Montreal Montreal, Canada 2 - 7 June 2013 Musical Acoustics Session 4aMU: Transient Phenomena in Wind Instruments: Experiments and Time Domain Modeling 4aMU4. Some simulations of the effect of varying excitation parameters on the transients of reed instruments Fabrice Silva, Vincent Debut, Philippe Guillemain, Jean Kergomard* and Christophe Vergez *Corresponding author's address: Laboratoire de Mécanique et d'Acoustique, CNRS-LMA, Marseille, 13402, France, France, [email protected] This paper considers the simulation of self-sustained oscillations in reed and brass instruments, based on a compact continuous-time formulation of the sound production mechanism. The control parameters such as the mouth pressure and the player's embouchure, but also the acoustic resonator and the reed may vary with respect to time, allowing the analysis of transient and non-stationary phenomena like changes of regime. A particular attention is first given to staccato notes, with comparison of the evolution of the instantaneous frequency in simulations to theoretical and experimental results. This shows the importance of using realistic control parameters on the onset of the oscillations. When the acoustic resonator is modelled using a modal expansion with non-stationary resonance frequencies and damping, it is also possible to simulate and study slurs and musical effects like the wah-wah, gaining some insight on the mechanisms involved. Published by the Acoustical Society of America through the American Institute of Physics Silva et al. © 2013 Acoustical Society of America [DOI: 10.1121/1.4799457] Received 21 Jan 2013; published 2 Jun 2013 Proceedings of Meetings on Acoustics, Vol. 19, 035058 (2013) Page 1
Transcript of Proceedings of Meetings on Acoustics · *Corresponding author's address: Laboratoire de Mécanique...
Proceedings of Meetings on Acoustics
Volume 19, 2013 http://acousticalsociety.org/
ICA 2013 Montreal
Montreal, Canada
2 - 7 June 2013
Musical AcousticsSession 4aMU: Transient Phenomena in Wind Instruments: Experiments and Time
Domain Modeling
4aMU4. Some simulations of the effect of varying excitation parameters on thetransients of reed instrumentsFabrice Silva, Vincent Debut, Philippe Guillemain, Jean Kergomard* and Christophe Vergez
*Corresponding author's address: Laboratoire de Mécanique et d'Acoustique, CNRS-LMA, Marseille, 13402, France, France,[email protected] This paper considers the simulation of self-sustained oscillations in reed and brass instruments, based on a compact continuous-timeformulation of the sound production mechanism. The control parameters such as the mouth pressure and the player's embouchure, but also theacoustic resonator and the reed may vary with respect to time, allowing the analysis of transient and non-stationary phenomena like changes ofregime. A particular attention is first given to staccato notes, with comparison of the evolution of the instantaneous frequency in simulations totheoretical and experimental results. This shows the importance of using realistic control parameters on the onset of the oscillations. When theacoustic resonator is modelled using a modal expansion with non-stationary resonance frequencies and damping, it is also possible to simulateand study slurs and musical effects like the wah-wah, gaining some insight on the mechanisms involved.
Published by the Acoustical Society of America through the American Institute of Physics
Silva et al.
© 2013 Acoustical Society of America [DOI: 10.1121/1.4799457]Received 21 Jan 2013; published 2 Jun 2013Proceedings of Meetings on Acoustics, Vol. 19, 035058 (2013) Page 1
Silva et al.
Proceedings of Meetings on Acoustics, Vol. 19, 035058 (2013) Page 2
Silva et al.
Proceedings of Meetings on Acoustics, Vol. 19, 035058 (2013) Page 3
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Silva et al.
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