Some fundamental questions concerning voice production remain unanswered despite numerous research approaches in various fields of voice science. It is widely believed that high intraglottal pressures may cause organic voice disorders – like vocal fold nodules or contact granulomas. This hypothesis seems reasonable but is difficult to prove given the challenges of pressure measurement and of es...

This paper presents recent progress in research examining the mechanisms of voice generation and a method for physiologically-based speech synthesis. The overarching goal of this research is the precise modeling of interactions among physical systems involved in the processes underlying voice generation. The interaction between the voice generation system (glottal flow and the vocal folds) and ...

Purpose: Prosody is the variation of dynamics, frequency, rate, and tone that carries contextual meaning in speech. The purpose of this study is to present an overview of prosody in speech from evolutionary, developmental and cultural perspectives, and to review implications in therapy for voice disorders. Methods: Cross-disciplinary overview. Results: Applications of prosody from linguistics, ...

Estimation of the source of voiced speech, the glottal volume velocity waveform, with inverse filtering involves usually a parameterisation stage, where the obtained flow waveforms are expressed in numerical forms. This stage of the voice source analysis, the parameterisation of the glottal flow, is discussed in the present paper. The paper aims to give a review on the different methods develop...

background: health?related quality of life (hrql) and voice handicap index (vhi) of laryngectomies seem to be relevant regarding voice rehabilitation. the aim of this study is to assess the impact on hrql and vhi of laryngectomies, following voice rehabilitation. materials and methods: a retrospective study done at the ear, nose, and throat department of the emergency county hospital. sixty?fiv...

in this research, we investigated the glottal wave of persian vowels, using electroglottography. in the first level, the properties of vowels glottal wave were analyzed. in the second level, the glottal wave between male and female speakers were  compared. contact quotient is the glottal wave parameter which was analyzed. data included six persian vowels and the glottal wave recorded using elec...

Voice is one of the orators perceivable behaviors that convey traits of charisma. Contemporary leaders, such as politicians, use their voices to shape their message and persuade audiences. The present study analyzes the physiological use of the “charismatic voice” in Italian, French, and Brazilian Portuguese political speech. We investigated the “discourse level” aspects of voice by conducting ...

Previous studies have shown changes in women's behavior and physical appearance between the non-fertile and fertile phases of the menstrual cycle. It is assumed that these changes are regulated by fluctuations in sex hormone levels across the cycle. Receptors for sex hormones have been found on the vocal folds, suggesting a link between hormone levels and vocal fold function, which might cause ...

Previous research has shown that the voice source is strongly correlated with speech quality [1][2][3]. However in many existing pitch modification algorithms only the impulse train excitation is modified, while the voice source is normally included in vocal tract transfer function and remains unchanged during modification. We present a production based pitch-scale modification scheme, which mo...

The purpose of this work is to evaluate and to compare the acoustic properties of oesophageal voice and voice prosthesis speech production. A group of 14 Italian laryngectomized patients were considered: 7 with oesophageal voice and 7 with tracheoesophageal voice (with phonatory valve). For each patient the spectrogram obtained with the phonation of vowel /a/ (frequency intensity, jitter, shimm...