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...

In this paper, we identify some impairments in the Voice over Internet Protocol (VoIP) networks and quantify the levels of voice quality. We propose an optimization model to maximize number of calls in low speed network for Rural Next Generation Network (R-NGN) while maintaining a minimum level of voice quality. The model is based-on Extended E-model to select parameters like voice coder, packe...

backround laryngopharyngeal reflux (lpr) is the backflow of stomach contents above upper esophageal sphincter, into the pharynx, larynx, and upper aerodigestive system. objectives in this study, effects of omeprazole over voice quality in muscle tension dysphonia with laryngopharyngeal reflux was ınvestigated. patients and methods nine patients, 7 males and 2 females, aged between 27-43 (mean a...

Graphical realism and the naturalness of the voice used are important aspects to consider when designing a virtual agent or character. In this work, we evaluate how synthetic speech impacts people’s perceptions of a rendered virtual character. Using a controlled experiment, we focus on the role that speech, in particular voice expressiveness in the form of personality, has on the assessment of ...

objectives: nasality is one of the important parameters in pathology of voice resonance. voice of normal adults has nasality to some extent. it appears that nasality, like other parameters of voice, can be affected by loudness which can be measured in experimental evaluations. this study was conducted to determine the effect of vocal loudness on nasalance of vowels in normal adults and to ident...

Introduction: Laryngopharyngeal reflux (LPR) is considered an important cause of voice disorder. We aimed to determine the frequency of LPR in patients with voice disorder and the association between Koufman Reflux Symptom Index (RSI), Reflux Finding Score (RFS), gastroesophageal reflux disease (GERD), and proximal acid reflux in these patients. Materials and Methods: We performed a prospective...

In this paper, I propose to analyze the prosodic realization of two modalities (declarative and interrogative) through perception study of whispered voice in French. I present results of two modality identification tasks. Results of identification test based on natural stimuli show a good identification rate of the modality. The values of the duration of final syllable seem to be the main acous...

Objectives: The present study aims to compare acoustic voice parameters in patients with vocal cord nodules, polyps, and normal subjects.  Methods: In this cross-sectional case-control study, the participants were selected by convenience sampling, including 30 patients with vocal polyps group, 38 patients with vocal nodules for the second group, and 42 participants without voice pathologies a...

background & aim: families of patients with schizophrenia face with stigma as the most challenging psychosocial pressure; due to its negative consequences on mental health of family and important role of family in a treatment of these patients, it is considered as important mental health issues. comparing the effect of in our own voice-family with psychoeducation on stigma in the families of pa...