Sound quality assessment of wood for xylophone bars

Aramaki Mitsuko, Baillères Henri, Brancheriau Loïc, Kronland Richard, Ystad Solvi. 2007. Sound quality assessment of wood for xylophone bars. Journal of the Acoustical Society of America, 121 (4) : 2407-2420.

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Xylophone sounds produced by striking wooden bars with a mallet are strongly influenced by the mechanical properties of the wood species chosen by the xylophone maker. In this paper, we address the relationship between the sound quality based on the timbre attribute of impacted wooden bars and the physical parameters characterizing wood species. For this, a methodology is proposed that associates an analysis-synthesis process and a perceptual classification test. Sounds generated by impacting 59 wooden bars of different species but with the same geometry were recorded and classified by a renowned instrument maker. The sounds were further digitally processed and adjusted to the same pitch before being once again classified. The processing is based on a physical model ensuring the main characteristics of the wood are preserved during the sound transformation. Statistical analysis of both classifications showed the influence of the pitch in the xylophone maker judgement and pointed out the importance of two timbre descriptors: the frequency-dependent damping and the spectral bandwidth. These descriptors are linked with physical and anatomical characteristics of wood species, providing new clues in the choice of attractive wood species from a musical point of view. ©2007 Acoustical Society of America

Mots-clés Agrovoc : bois

Classification Agris : K50 - Technologie des produits forestiers

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Aramaki Mitsuko, CNRS (FRA)
• Baillères Henri, CIRAD-FORET-UPR Bois tropicaux (AUS)
• Brancheriau Loïc, CIRAD-FORET-UPR Bois tropicaux (FRA) ORCID: 0000-0002-9580-7696
• Kronland Richard, CNRS (FRA)
• Ystad Solvi, CNRS (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/538534/)

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