In Parkinsonian patients, abnormal vocal qualities are frequently observed. Previous research has suggested that laryngeal muscle rigidity may be responsible for the vocal symptoms. While rigidity is one of the most responsive symptoms to dopaminergic therapy, studies investigating speech changes following dopaminergic therapy are very limited. In this study, phonatory responses to dopaminergic...

Anticipation and retention phenomena between the different phonatory organs have been widely studied in the speech perception and production domain. However, few automatic speech recognition systems are able to handle them. In this paper, we deene a product of val-uated transitions automata handling these diiculties. Then, we use such automata in a recognition system based on HMM. This method i...

Belting has been described as speechlike, yell-like, or shouting voice production commonly used in contemporary commercial music genres and substantially differing from the esthetic of the Western classical voice tradition. This investigation attempts to describe phonation and resonance characteristics of different substyles of belting (heavy, brassy, ringy, nasal, and speechlike) and the class...

Most Westem opera singers report feeling phonatory vibrations, i.e., vibrations caused by phonation, in different parts of their bodies while singing. As one perceives one's own voice quite differently from one's listeners, it has been hypothesized that phonatory vibrations may be useful as a feedback signal for the control of phonation. These vibrations have been examined in some articles whic...

In this work, we revisit the path that has been travelled during the last few years towards the modelling of the avian vocal organ, the syrinx, using numerical and theoretical techniques from bifurcation theory as analysing tools and present experimental support for the models. This fruitful perspective allowed the retracing of many acoustic features of syllables to intrinsic properties of the ...