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Communication Dans Un Congrès Année : 2012

Quantitative evaluation of the curvature induced mistuning in long wind instruments

Cornelis Nederveen
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Résumé

The present work attempts to quantify, both theoretically and experimentally, the effect of the curvature of the air column of wind instruments on their acoustical properties. The curvature-induced mistuning, that is, the change in resonance frequencies compared with a straight tube having the same axis length, is characterized as a length correction, that can be deduced from a direct calculation of the resonance frequencies, or from the input impedance. This length correction exhibit a strong frequency dependence, denoting a complex inharmonicity, that can be, in some cases, musically significant. Details are given on the inharmonicity as a function of the curvature of the waveguide axis, and quantitative results are given on various example of bent portions of real wind instruments.
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Dates et versions

hal-00810850 , version 1 (23-04-2012)

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  • HAL Id : hal-00810850 , version 1

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Simon Félix, Jean-Pierre Dalmont, Cornelis Nederveen. Quantitative evaluation of the curvature induced mistuning in long wind instruments. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00810850⟩
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