Is the jet-drive flute model able to produce modulated sounds like Flautas de Chinos ?

Soizic Terrien (1) , Christophe Vergez (1) , Patricio de La Cuadra (2) , Benoît Fabre (3)

1 Sons
2 CITA - Centro de Investigacion en Tecnologias de Audio
3 DALEMBERT - Institut Jean Le Rond d'Alembert

Flautas de chinos - prehispanic chilean flutes played during ritual celebrations in central Chile - are known to produce very particular beating sounds, the so-called sonido rajado. Some previous works have focused on the spectral analysis of these sounds, and on the input impedance of the complex resonator. However, the beating sounds origin remains to be investigated. Throughout this paper, a comparison is provided between the characteristics of both the sound produced by flautas de chinos and a synthesis sound obtained through time-domain simulation of the jet-drive model for flute-like instruments. Jet-drive model appears to be able to produce quasiperiodic sounds similar to sonido rajado. Finally, the analysis of the system dynamics through numerical continuation methods allows to explore the production mechanism of these quasiperiodic regimes.

Mots clés: musical acoustics; flute-like instruments; physical model; numerical continuation; quasiperiodic solutions

Domaines: Acoustique [physics.class-ph]; Acoustique [physics.class-ph]

Soizic Terrien, Christophe Vergez, Patricio de La Cuadra, Benoît Fabre. Is the jet-drive flute model able to produce modulated sounds like Flautas de Chinos ?. Stockholm Music Acoustics Conference, Jul 2013, Stockholm, Sweden. pp.465-472. ⟨hal-00946158⟩