Response of an artificially blown clarinet to different blowing pressure profiles

Abstract : Using an artificial mouth with an accurate pressure control, the onset of the pressure oscillations inside the mouthpiece of a simplified clarinet is studied experimentally. Two time profiles are used for the blowing pressure: in a first set of experiments the pressure is increased at constant rates, then decreased at the same rate. In a second set of experiments the pressure rises at a constant rate and is then kept constant for an arbitrary period of time. In both cases the experiments are repeated for different increase rates. Numerical simulations using a simplified clarinet model blown with a constantly increasing mouth pressure are compared to the oscillating pressure obtained inside the mouthpiece. Both show that the beginning of the oscillations appears at a higher pressure values than the theoretical static threshold pressure, a manifestation of bifurcation delay. Experiments performed using an interrupted increase in mouth pressure show that the beginning of the oscillation occurs close to the stop in the increase of the pressure. Experimental results also highlight that the speed of the onset transient of the sound is roughly the same, independently of the duration of the increase phase of the blowing pressure.
Type de document :
Article dans une revue
Journal of the Acoustical Society of America, Acoustical Society of America, 2014, 135 (1), pp.479-490. <10.1121/1.4835755>
Liste complète des métadonnées


https://hal.archives-ouvertes.fr/hal-00769274
Contributeur : Baptiste Bergeot <>
Soumis le : jeudi 27 novembre 2014 - 11:37:47
Dernière modification le : mercredi 22 juillet 2015 - 10:59:31
Document(s) archivé(s) le : vendredi 14 avril 2017 - 22:02:18

Fichiers

article_exp_JASA_HALv3.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Baptiste Bergeot, André Almeida, Christophe Vergez, Bruno Gazengel, Ferrand Didier. Response of an artificially blown clarinet to different blowing pressure profiles. Journal of the Acoustical Society of America, Acoustical Society of America, 2014, 135 (1), pp.479-490. <10.1121/1.4835755>. <hal-00769274v3>

Partager

Métriques

Consultations de
la notice

321

Téléchargements du document

105