VITA 2010

  Vienna Talk 2010 on Music Acoustics
"Bridging the Gaps"
      September 19–21


List of Vienna Talk 2010 presenters

Amir, Noam (P,O)

Andermann, Martin (P)

Arzt, Andreas (O)

Bastos, Patricia Lopes (P)

Beauchamp, James Warren (O,O)

Bendl, Ingrid (P)

Bertsch, Matthias (P)

Bisesi, Erica Elisabetta (O)

Buen, Anders (O)

Campbell, Murray (O)

Cano, Estefania (P)

Carral, Sandra (P)

Carter, Stewart Arlen (O)

Chatziioannou, Vasileios (P)

Chick, John (O)

Curtit, Marthe (O)

Presentation type: Oral / Invited

Bore reconstruction based on input impedance measurement

The bore profile of a wind instrument has an important influence on its acoustical characteristics. Specifically, playing frequencies are close to the resonance frequencies of the tube constituted by the bore of an instrument. Several methods were developed to obtain bore dimensions, such as pulse-reflectometry, or radiography techniques. The method investigated here is based on tube input impedance measurement, witch provides us with an alternative way to estimate the bore profile.

In collaboration with Olivier Cottet, we have applied this method in the case of a bassoon crook, at different stages of fabrication. During the crook fabrication, a sheet of metal is used to form a straight tube which internal profile is given by a mandrel of which dimensions can be measured precisely. This tube is then filled with alloy lead and curved. At this stage, taking mechanical measurements of the bore (using a calliper for example) is not possible due to its small size. The aforementioned method is then used to make those measurements, and maybe to observe some differences in the bore profile, after and before the crooks is curved.

Dalmont, Jean-Pierre (O)

Davidenkova, Ekaterina (O)

Demoucron, Matthias (O)

Doutaut, Vincent (P)

Dörfler, Monika (O)

Flossmann, Sebastian (O)

Fouilhe, Eric (O)

Fricke, Jobst P. (O)

Fritz, Claudia (O)

Gingras, Bruno (O)

Goebl, Werner (P)

Granzotto, Nicola (P)

Grosshauser, Tobias (O)

Guettler, Knut (O)

Hansen, Uwe J (O)

Kartofelev, Dmitri (P)

Kausel, Wilfried (P)

Kemp, Jonathan (O,O)

Klaus, Sabine Katharina (O)

Kostek, Bozena (O)

Lambrechts-Douillez, Jeannine (O)

Lohri, Angela (P)

Marchand, Sylvain (O)

Mayer, Alexander (P)

Moore, Thomas (O,O)

Morrison, Andrew (O)

Myers, Arnold (O)

Nederveen, Cornelis J (O)

Niedermayer, Bernhard (O)

Norman, Lisa (O)

Oehler, Michael (O)

Otcenasek, Zdenek)

Pyle, Robert W. (O,O)

Reuter, Christoph (O)

Richardson, Bernard (P,O)

Rose, Maria (O)

Rossing, Thomas D. (O,O)

Sanchez, Monica (P)

Schoonderwaldt, Erwin (O)

Sharp, David (O)

Siddiq, Sadjad (P)

Skala, Jan (P)

Smith, Richard (O)

Sundberg, Johan)

Taylor, Crissman (O)

Tronchin, Lamberto (O)

Tsai, Pei Ju (P)

Vereecke, Hannes William (P)

Vergez, Christophe (O)

Widmer, Gerhard (O)

Worland, Randy (O)

Ziegenhals, Gunter (O)

van der Linden, Janet (O)

Banner Pictures: (c) PID/Schaub-Walzer