Voice quality shifts have been shown to be associated with the realisation of accent, focus and deaccentuation. Mostly, accented and focally accented syllables are reported to exhibit a tenser mode of phonation than the unaccented, but accentuation with a laxer/breathier quality is also reported. Possibly, the long-term voice quality of the speaker (or of the utterance) influences the voice qua...

The geometric and biomechanical properties of the larynx strongly influence voice quality and efficiency. A physical understanding of phonation natures in pathological conditions is important for predictions of how voice disorders can be treated using therapy and rehabilitation. Here, we present a continuum-based numerical model of phonation that considers complex fluid-structure interactions o...

Previous investigations indicate that as one approaches, the upper or lower limits of the modal or falsetto phonational registers, the range of vocal intensities the speaker is capable of producing decreases. However, no data are available relating frequency/ intensity changes for extremely low frequency phonation, often called glottal or vocal fry due to its perceptual attributes. The purpose ...

Abstract Background The study aims at evaluating the effect of wearing face masks on voice and intelligibility speech in Egyptian working individuals during COVID-19 pandemic to identify if there are any adverse effects environment. Materials methods A cross-section analytical was conducted 153 participants. Personal data about nature their workplaces were collected. evaluation included a subje...

PURPOSE Resonance tube phonation in water (RTPW) or in air is a voice therapy method successfully used for treatment of several voice pathologies. Its effect on the voice has not been thoroughly studied. This investigation analyzes the effects of RTPW on collision and phonation threshold pressures (CTP and PTP), the lowest subglottal pressure needed for vocal fold collision and phonation, respe...

Ventricular fold phonation (VFP) is a phenomenon characterized by phonation using the false vocal folds. Besides a substitution voice due to loss of the true vocal folds-so called compensatory type-the noncompensatory types have a psychogenic, functional, or habitual background. Therapeutic options for these cases so far comprise voice therapy, pharmacological therapy (injection of anesthetics ...

BACKGROUND AND PURPOSE Since the advent of pharyngography, "eee" phonation has been used to distend the airway during imaging. When imaging shifted to axial CT, "eee" phonation was used to delineate mucosal anatomy better. However, because patients could not phonate for the entire examination (which could take several minutes), the technique was only useful during supplemental imaging, performe...

Vocal production requires active control of the respiratory system, larynx and vocal tract. Vocal sounds in mammals are produced by flow-induced vocal fold oscillation, which requires vocal fold tissue that can sustain the mechanical stress during phonation. Our understanding of the relationship between morphology and vocal function of vocal folds is very limited. Here we tested the hypothesis ...

Objectives: This study aimed to evaluate the effectiveness of voice therapy in patients with mutational falsetto objective and subjective methods. Patients Methods: In this retrospective study, 18 male (mean age: 17.2±3.7 years; range, 14 26 years) diagnosed underwent acoustical analysis between May 2020 January 2023 using Praat software. For acoustic analyses, fundamental frequency, jitter, sh...