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

TL;DR

This paper investigates whether the jet-drive flute model can generate modulated sounds similar to the traditional Chilean flutes called Flautas de Chinos, focusing on quasiperiodic sound production mechanisms.

Contribution

It demonstrates that the jet-drive model can produce quasiperiodic sounds akin to sonido rajado, providing insights into the sound production mechanism of Flautas de Chinos.

Findings

Jet-drive model can simulate quasiperiodic sounds similar to sonido rajado.

Numerical continuation reveals the dynamics behind quasiperiodic regimes.

Comparison shows similarities between synthesized and traditional flute sounds.

Abstract

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.