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Conference Papers Year : 2012

What do we know on " resonance wood " properties? Selective review and ongoing research

Iris Bremaud
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Abstract

Amongst the many different wood species used in musical instrument making, the term "resonance wood" usually refers to material for soundboards of strings (in Western classical instruments, principally softwoods and mostly spruce: Picea abies or spp.). As material properties of soundboards are believed to play a significant role in the acoustic behaviour of a completed instrument, many references have dealt with "resonance wood" for nearly one century. This paper aims at depicting this landscape, focusing on wood vibrational properties, their natural variability and microstructural determinants, and how they are influenced by external factors. Some characteristics of "resonance wood" are quite well known (ranges of density, of specific dynamic modulus of elasticity and viscoelastic damping along the grain), whereas others are still not fully characterised (anisotropy and frequency dependence). The interactions with hygrometry or various "treatments" (biological, chemical, thermal or "ageing") are also the object of ongoing research. Finally, although "resonance wood" may be essentially defined by the fact that it is selected by a maker and effectively used for building instruments, this viewpoint has been little studied. It calls for interdisciplinary approaches connecting the empirical criteria of evaluation used by luthiers, with wood science, material perception studies, and acoustics.
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hal-00811117 , version 1 (23-04-2012)

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  • HAL Id : hal-00811117 , version 1

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Iris Bremaud. What do we know on " resonance wood " properties? Selective review and ongoing research. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811117⟩

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ACOUSTICS2012
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