Developping methodologies to correlate perceived sound qualities of violins with controlled construction parameters
Résumé
The holy grail for violin makers is to find correlations
between construction parameters and sound qualities. This
is challenging for two main reasons: it is difficult to build
violins reliably enough to ensure that the change in the
sound is indeed a result of the change of construction
parameters; when listening to the violins being played,
differences are smoothed out by the players who adapt very
quickly. Therefore, while players had so far been preferred
in our experiments to maximise the ecological validity and
take into account the complexity of the interaction between
the player and the instrument, we have decided to test
whether other methods, that reduce the influence of the
player but are quite artificial, may be useful to explore the
influence of some construction parameters on the tone. In
the context of two sets of violins built with controlled
thickness variations of their plates, we will compare the
results of listening tests based on real recordings with a
player and with a bowing machine as well as synthesised
recordings (from the convolution of an excerpt recorded
with piezo sensors and radiation measurements in an
anechoic chamber) and discuss them in the light of
vibroacoustical measurements.
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