We have examined a tonal system of modern Hanoi dialect of Vietnamese. This has been described for a long time as a pitch contour prominent system with secondary phonatory variations. The present study aims to propose certain laryngeal features, [tense] and [glottal constriction], in addition to the former prosodic feature, [high], to cover the overall distinction within the system. Some acoust...

This work reports cross-language differences in the voicing of initial voiced stops, and in the use of active maneuvers to achieve closure voicing, using multiparametric aerodynamic data. Oral pressure, oral and nasal flow, and acoustic data were obtained for utterance-initial /b d p t m/ for 10 speakers of Spanish, 6 speakers of French and 5 speakers of English. Voiced stops were classified as...

The ventricular bands are laryngeal structures located above and close to the glottis. Several hypotheses considering an aerodynamic interaction between the vocal folds and the ventricular bands during sound production can be found in the literature. The present work aims at studying and modelling such a possible interaction. In particular the influence on the glottal flow and resulting pressur...

NASAL INTERMITTENT POSITIVE pressure ventilation (nIPPV) is a noninvasive modality of ventilatory support that is frequently used for a number of clinical conditions. Suggested applications for nIPPV include the treatment of respiratory distress and apnea of prematurity, sleep apnea syndromes, chronic obstructive pulmonary disease, and as a bridge between mechanical ventilation and unassisted b...

In an investigation of phonation onset, a linear stability analysis was performed on a two-dimensional, aeroelastic, continuum model of phonation. The model consisted of a vocal fold-shaped constriction situated in a rigid pipe coupled to a potential flow which separated at the superior edge of the vocal fold. The vocal fold constriction was modeled as a plane-strain linear elastic layer. The d...

Downstream of the vocal folds, it is often assumed that all the kinetic energy of the glottal jet is dissipated by turbulence. Although this assumption is reasonable for normal voicing, there are many configurations for which a constriction or even an occlusion of the vocal tract occurs and leads to a significant pressure recovery. Such a phenomenon occurs during the production of vowel-bilabia...

In American English, the presence of creaky voice can derive from distinct linguistic processes, including phrasal creak (prolonged irregular voicing, often at edges of prosodic phrases) and coda /t/ glottalization (when the alveolar closure for syllablefinal /t/ is replaced by or produced simultaneously with glottal constriction). Previous work has shown that listeners can differentiate words ...

This paper reports results related to the phenomenon referred to as a “glottal squeak” (coined by [1]). At present, nothing is known about the conditioning and the articulation of this feature of speech. Our qualitative acoustic analyses of the conditioning of squeaks (their frequency of occurrence, duration, and f0) found in Aberystwyth English and Manchester English suggest that squeaking may...