Abstract
The novel stochastic model to produce voiced sounds proposed in this paper uses the
source-filter Fant theory to generate voice signals and, consequently, it does not
consider the coupling between the vocal tract and the vocal folds. Two novelties are
proposed in the paper. The first one is the new model obtained from the unification
of two other deterministic one mass-spring-damper models obtained from the literature
and the second one is to build a stochastic model which can generate and control the
level of jitter resulting even in hoarse voice signals or with pathological characteristics
but using a simpler model than those ones discussed in the literature. An inverse
stochastic problem is then solved for two cases, considering a normal voice and other
obtained from a case of paralysis on the vocal folds. The parameters of the model
are identified in the two cases allowing the validation of the model.
Keywords
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Article info
Publication history
Published online: January 01, 2021
Accepted:
November 30,
2020
Identification
Copyright
© 2020 The Voice Foundation. Published by Elsevier Inc. All rights reserved.
