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Improved fold closure in mass-spring low-dimensional glottal models

Summary: Improved fold closure in mass-spring
low-dimensional glottal models
C. Drioli1 and F. Avanzini2
Dept. of Computer Science, University of Verona, Italy
Dept. of Information Engineering, University of Padova, Italy
Abstract: This work presents a low-dimensional physical
model of the glottis in which a 2-D fold displacement
representation allows to represent both the vertical and
longitudinal displacements of the folds. We use a one-mass
mechanical model, coupled to aerodynamic driving forces,
and we use a delay line representation to account for the
propagation of the displacement on the body-cover. The
waveform is characterized by means of a set of acoustic
parameters (open quotient, speed quotient, return quotient,
fundamental frequency F0, etc.) that are used in the literature
as typical voice source quantification parameters. The paper
provides comparisons between values of these parameters
computed for the proposed model and for analytical models


Source: Avanzini, Federico - Department of Information Engineering, UniversitÓ degli Studi di Padova


Collections: Computer Technologies and Information Sciences