An electrolarynx, a verbal communication aid used by laryngectomy patients, is a vibrator held against the neck tissue to provide excitation to the vocal tract, as a substitute to that provided by the glottal vibrations. Although the user can set the vibration level and pitch, a dynamic control of level, voicing, and pitch during speech production is not feasible. In addition to this basic limi...

Introduction: Rhinosinus polyposis is associated with voice quality reduction. There has been little evidence about the efficacy of rhinosinus polyps surgery on patients' voice quality so far. The aim of the present study was to evaluate the nasality and acoustic voice changes after rhinosinus polyposis surgery.   Materials and Methods: The population in this study compo...

OBJECTIVE To evaluate the long-term aerodynamic, acoustic, and electromyographic effects of serial botulinum toxin (BT) injections in patients with adductor spasmodic dysphonia. DESIGN Two-year, nonrandomized, controlled, before-after study. SETTING Ambulatory care clinic at a single academic medical center. PATIENTS A convenience sample of 91 patients with adductor spasmodic dysphonia ev...

INTRODUCTION Adenotonsillectomy is the most common surgery performed by otolaryngologists in pediatric age, and one of the most frequently asked questions about the postoperative period is whether there is a potential for change in vocal pattern of these children. OBJECTIVE To evaluate the impact of adenotonsillectomy in the voice emission pattern of children with hypertrophy of palatine and ...

BACKGROUND Acoustic vocal parameters measure frequency, intensity (amplitude), perturbation (jitter and shimmer) and dynamic range of the voicing vocal folds. Studies have established that a normal standard data is necessary for acoustic analysis. OBJECTIVE The aim of the present study is to standardise Jitter, shimmer, harmonic to noise ratio (HNR) and fundamental frequency (F0) for young ad...

Voice diseases are increasing dramatically, due mainly to unhealthy social habits and voice abuse. In this paper, we investigate the methods of acoustic voice analysis (AVA) with adaptive features to develop a system for voice pathologies detection, where the models correspond to classes of patients who share the same diagnostic. One essential part in this topic is the database (described later...

UNLABELLED Arthritis may affect the larynx and produce symptoms such as hoarseness and vocal fatigue. OBJECTIVE This paper aimed to evaluate the laryngeal manifestations of rheumatoid arthritis. METHODS This is prospective study assessed 27 patients with rheumatoid arthritis with the aid of videolaryngostroboscopy, auditory-perceptual analysis of the speech using the GIRBAS scale, acoustic ...

OBJECTIVE The purpose of the present pilot study is to investigate whether the beneficial short-term effects of voice therapy in patients with voice problems after treatment of early glottic cancer as reported in our earlier study remain present on the long term. STUDY DESIGN In this prospective study, 12 patients, selected based on a screening questionnaire about voice problems and randomly ...

Multiple factors influence voice quality measurements (VQM) obtained during an acoustic voice assessment including: gender, intrasubject variability, microphone, environmental noise (type and level), data acquisition (DA) system, and analysis software. This study used regression trees to investigate the order and relative importance of these factors on VQM including interaction effects of the f...

INTRODUCTION Smoking affect voice quality in a long period of time, but other factors may compromise it, such as professional using of voice, habits, alcohol dependence and GERD. The aim was associate the influence of these factors on vocal parameters. STUDY DESIGN Contemporary cohort study with cross-sectional. MATERIALS AND METHODS Eighty adults of 35 to 60 years old had participated in t...