7th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications (MAVEBA 2011)
Performances of unsuited repertories to
singer's vocal and technical features can cause
increasing risks of vocal effort (VE) and fatigue or
glottis injury (GI), then it's important to find the
right repertory for artist's vocal and technical
features. We made manual voice range profiles
(VRP) and interviews regarding performed, studied
or not studied roles in professional singers. The
dynamic agility (DA) curve, that is the differentials'
curve (note by note) between loud and soft phonation
curves of phonetogram, was obtained from VRP.
This type of curve allows us to assess the phonation
system capacity all range long. We realised for each
operatic and musical role a vocal score profile (VSP),
that is a statistic method for vocal score semeiotic
and accurately highlights the vocal role various
musical features through histograms and numeric
parameters (1). Then we superimposed the da
graphs on vsp graphs creating a new graph (P/P
ratio) that gives a synoptic summary of suitableness
of examined singers' vocal and technical features in
regard to considered role, revealing hard and critical
moments eventually causing higher VE and GI risks
(2). At last we compared data from P/P ratio with
those from interviews, valuating correspondence
between subjective and objective data (3).
This study describes explicative examples of graphs analysis; in all cases analyzed through P/P ratio we found easiness in data interpretation, reliability in suitableness evaluation and expectation, good correspondence between subjective and objective data.
Index Terms. vocal score profile, voice range profile, partiturogram, phonetogram, vocal effort.
Full Paper (reprinted with permission from Firenze University Press)
Bibliographic reference. Fussi, Franco / Paolillo, Nico Paolo (2011): "The vocal score profile/voice range profile ratio (p/p ratio) in artistic voice evaluation: application tested on opera and musical singers", In MAVEBA-2011, 85-88.