End conditions of piano strings

Kerem Ege (1) , Antoine Chaigne (1)

1 UME - Unité de Mécanique

The end conditions of piano strings can be approximated by the input admittance at the bridge. Proper measurements of this value are therefore required. A method of validation of admittance measurements on simple structures is proposed in this paper. High resolution signal analysis performed on string vibrations yields an estimate for the input admittance. This method is implemented on a simplified device composed of a piano string coupled to a thin steel beam.

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]; Acoustique [physics.class-ph]; Acoustique [physics.class-ph]; Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Kerem Ege, Antoine Chaigne. End conditions of piano strings. International Symposium on Musical Acoustics, ISMA 2007, Sep 2007, Barcelona, Spain. pp.2-P2-2. ⟨hal-00558487v1⟩