Dynamics of the Vocal Fold Oscillation

A fluid-structure interaction model of vocal fold oscillation

Since fluid-structure interaction within the finite-element method is state of the art in many engineering fields, this method is used in voice analysis. A quasi two-dimensional model of the vocal folds including the ventricular folds is presented. First results of self-sustained vocal fold oscillation are presented and possibilities as well as limitations are discussed.

The Effects of Size and Type of Vocal Fold Polyp on Some Acoustic Voice Parameters

Background: Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps.Methods: In the present retrospective study, 28 individuals with hemorrha...

PVG-wavegrams: three-dimensional visualization of vocal fold dynamics

Monitoring vocal fold abduction through vocal fold contact area.

A number of commercial devices for measuring the transverse electrical conductance of the thyroid cartilage produce waveforms that can be useful for monitoring movements within the larynx during voice production, especially movements that are closely related to the time-variation of the contact between the vocal folds as they vibrate. This paper compares the various approaches that can be used ...

High-speed Laryngeal Imaging Analysis of Vocal Fold Dynamics

High-speed laryngeal Imaging (HSLI) provides a direct means to observe the actual vibration of the vocal folds and allows for comprehensive analyses of vocal fold dynamics in normal and abnormal voice productions. Glottal edge detection is a key operation for tracing vibrations of the vocal folds at spatial locations and obtaining glottal area waveform (GAW) from the HSLI data. We have develope...