An overview of the physiology, physics and modeling of the sound source for vowels.

Story, Brad H.

doi:10.1250/ast.23.195

Cited by 92 publications

(45 citation statements)

References 26 publications

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“…9 Sustained vowels generated under controlled F0 and intensity and not disturbed by articulatory adjustments elicit a stationary process resulting in a linear source-filter coupling, which reflects the sound power produced by the vocal folds, therefore enhancing the chances of identifying effects for research purposes. 5,9,10,[22][23][24] However, there is inconsistency in the literature as to which vowels are most stable with regard to objective acoustic measurements. For example, authors disagree regarding differences related to acoustic perturbation measurements of vowels.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Comparison of Vowel Sounds Among Adult Females

Franca

2012

Journal of Voice

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Section: Introductionmentioning

confidence: 99%

Acoustic Comparison of Vowel Sounds Among Adult Females

Franca

2012

Journal of Voice

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“…This is often referred to as the mucosal wave (Story, 2002), or vertical phase difference. Figure 1 depicts a cycle of vocal fold vibration in the coronal plane.…”

Section: Normal Modes In Vocal Fold Oscillationmentioning

confidence: 99%

“…Following Story (2002), simulations from the two-mass model will be analyzed in the next sections using two conditions of vocal tract loading. In a first "setup" we assume that no vocal tract load is present, so that the vocal tract input pressure is atmospheric (p v ≡ 0): this roughly corresponds to the configuration 9 of excised larynges typically used for experimental measures.…”

Section: Vocal Tract Loadmentioning

confidence: 99%

Simulation of vocal fold oscillation with a pseudo-one-mass physical model

Avanzini¹

2008

Speech Communication

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To cite this version:Federico Avanzini. Simulation of vocal fold oscillation with a pseudo-one-mass physical model. Speech Communication, Elsevier : North-Holland, 2008, 50 (2) ACCEPTED MANUSCRIPT Simulation of vocal fold oscillation with a pseudo-one-mass physical modelFederico Avanzini Via Gradenigo 6/A, 35131 Padova, Abstract This paper presents a novel "pseudo-one-mass model" of the vocal folds, which is derived from a previously proposed two-mass model. Two-mass models account for effects of vertical phase differences in fold motion by means of a pair of coupled oscillators that describe the lower and upper fold portions. Instead, the proposed model employs a single mass-spring oscillator to describe only the oscillation of the lower fold portion, while phase difference effects are simulated through an approximate phenomenological description of the upper glottal area. This approximate description is derived in the hypothesis that 1 : 1 modal entrainment occurs between the two masses in the large-amplitude oscillation regime, and is then exploited to derive the equations of the pseudo-one-mass model. Numerical simulations of the reference two-mass model are analyzed to show that the proposed approximation remains valid when values of the physical parameters are varied in a large region of the control space. The effects on the shape of the glottal flow pulse are also analyzed. Comparison of simulations with the reference two-mass model and the pseudo-one-mass model show that the dynamic behavior of the former is accurately approximated by the latter. The similarity of flow signals synthesized with the two models is assessed in terms of four acoustic parameters: fundamental frequency, maximum amplitude, open quotient, and speed quotient. The results confirm that the pseudo-one-mass model fit with good accuracy the behavior of the reference two-mass model, while requiring significantly lower computational resources and roughly half of the mechanical parameters. Dep. of Information Engineering, University of Padova

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“…This cover tissue allows a surface wave (mucosal wave) to be generated on the vocal fold surface. This mucosal wave propagates longitudinally along the axis of airflow during phonation 9 …”

Section: Vocal Fold Structure and Functionmentioning

confidence: 99%