2023
DOI: 10.3390/bioengineering10121369
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On the Alignment of Acoustic and Coupled Mechanic-Acoustic Eigenmodes in Phonation by Supraglottal Duct Variations

Florian Kraxberger,
Christoph Näger,
Marco Laudato
et al.

Abstract: Sound generation in human phonation and the underlying fluid–structure–acoustic interaction that describes the sound production mechanism are not fully understood. A previous experimental study, with a silicone made vocal fold model connected to a straight vocal tract pipe of fixed length, showed that vibroacoustic coupling can cause a deviation in the vocal fold vibration frequency. This occurred when the fundamental frequency of the vocal fold motion was close to the lowest acoustic resonance frequency of th… Show more

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Cited by 4 publications
(2 citation statements)
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“…In normal phonation, the vocal folds generally vibrate in an aerodynamically driven mode, in which vocal fold vibration is sustained by a near field interaction between the vocal folds and glottal airflow. However, vocal fold vibration may also be influenced by sub- and supra-glottal acoustic resonances ( Ishizaka and Flanagan, 1972 ; Rothenberg, 1981 ; Fant, 1982 ; Zhang et al , 2006a , b ; Zañartu et al , 2007 ; Titze, 2008 ; Lucero et al , 2012 ; Kraxberger et al , 2023 ; Zhang, 2023 ). This is particularly the case when the fundamental frequency F 0 approaches the first resonance of either the subglottal or supraglottal tract.…”
Section: Introductionmentioning
confidence: 99%
“…In normal phonation, the vocal folds generally vibrate in an aerodynamically driven mode, in which vocal fold vibration is sustained by a near field interaction between the vocal folds and glottal airflow. However, vocal fold vibration may also be influenced by sub- and supra-glottal acoustic resonances ( Ishizaka and Flanagan, 1972 ; Rothenberg, 1981 ; Fant, 1982 ; Zhang et al , 2006a , b ; Zañartu et al , 2007 ; Titze, 2008 ; Lucero et al , 2012 ; Kraxberger et al , 2023 ; Zhang, 2023 ). This is particularly the case when the fundamental frequency F 0 approaches the first resonance of either the subglottal or supraglottal tract.…”
Section: Introductionmentioning
confidence: 99%
“…The current computational power allows to study cardiovascular (Itatani et al, 2022) and respiratory (Lasota et al, 2023;Schoder et al, 2020) diseases in both patientspecific (Kraxberger et al, 2023;Mylavarapu et al, 2013) and idealized geometries (Li et al, 2023;Shabbir et al, 2023). One remarkable example of an idealized geometry model of a human vessel is a collapsible tube.…”
Section: Introductionmentioning
confidence: 99%