External tonehole interactions in woodwind instruments

Antoine Lefebvre 1 Gary P. Scavone 1 Jean Kergomard 2
2 Sons
LMA - Laboratoire de Mécanique et d'Acoustique [Marseille]
Abstract : The classical Transfer-Matrix Method (TMM) is often used to calculate the input impedance of woodwind instruments. However, the TMM ignores the possible influence of the radiated sound from toneholes on other open holes. In this paper a method is proposed to account for external tonehole interactions. We describe the Transfer-Matrix Method with external Interaction (TMMI) and then compare results using this approach with the Finite Element Method (FEM) and TMM, as well as with experimental data. It is found that the external tonehole interactions increase the amount of radiated energy, reduce slightly the lower resonance frequencies, and modify significantly the response near and above the tonehole lattice cutoff frequency. In an appendix, a simple perturbation of the TMM to account for external interactions is investigated, though it is found to be inadequate at low frequencies and for holes spaced far apart.
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Article dans une revue
Acta Acustica united with Acustica, Hirzel Verlag, 2013, 99, pp.975-985
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Soumis le : jeudi 20 juin 2013 - 11:52:04
Dernière modification le : mercredi 18 janvier 2017 - 01:02:25
Document(s) archivé(s) le : samedi 21 septembre 2013 - 04:08:07

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  • HAL Id : hal-00720132, version 2
  • ARXIV : 1207.5490

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Antoine Lefebvre, Gary P. Scavone, Jean Kergomard. External tonehole interactions in woodwind instruments. Acta Acustica united with Acustica, Hirzel Verlag, 2013, 99, pp.975-985. 〈hal-00720132v2〉

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