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  4. The impact of glottal area discontinuities on block-type vocal fold models with asymmetric tissue properties
 
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The impact of glottal area discontinuities on block-type vocal fold models with asymmetric tissue properties

Journal
Journal of the Acoustical Society of America
ISSN
0001-4966
Date Issued
2013-03-01
Author(s)
Sommer, David E.
Erath, Byron D.
Zañartu, Matías  
Departamento de Electrónica  
Peterson, Sean D.
DOI
10.1121/1.4790662
Abstract
<jats:p>Block-type lumped-element models of the vocal folds are widely used for speech investigations due in part to the rich dynamics exhibited over a range of input parameters, particularly for asymmetric tissue properties. While self-consistent in derivation and application, block-type models of the vocal fold masses are inherently susceptible to non-physical aerodynamic loading conditions when vocal fold motion is highly asymmetric. A standard block-type model is compared against two modified models that disallow the non-physiological loading condition. These minor modifications toward a more physiologically relevant aerodynamic model alter the specific vibration regimes and prevalence of chaos, though bifurcations still exist.</jats:p>
Subjects

Folding dynamics

Speech communication

Vocalization

Vocal folds

Speech analysis

Acoustic-structure in...

Electronic circuits

Composite models

Navier Stokes equatio...

Larynx

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