OBJECTIVES To compare voice parameters in subjects with different hearing level. METHODS The evaluation consisted of Multi-Dimensional Voice Program (MDVP) and electroglottography. Group 1 consisted of normal hearing subjects which is bilateral average hearing better than 25 decibels (dB) whereas group 2 consisted of patients who have bilateral average hearing between the 25 and 60 dB and gro...

Introduction. Chronic edematous-polypous laryngitis, Reinke – Gayek’s edema accounts for 5.5% of all benign diseases the vocal folds. Surgical treatment Gayek disease consists in removing excess mucosa, or “stripping” tearing off a strip mucosa with forceps from fold. The principle laryngeal surgery is to preserve structures fold, obtain flexible vibration muscular-membranous part and mucous me...

There is increasing emphasis on use of connected speech for acoustic analysis of voice disorder, but the differential impact of disorder on initiation, maintenance and termination of phonation has received little attention. This study introduces a new measure of dynamic changes at onset of phonation during connected speech, phonation stabilisation time (PST), and compares this measure with conv...

The voluntary control of phonation is a crucial achievement in the evolution of speech. In humans, ventral premotor cortex (PMv) and Broca's area are known to be involved in voluntary phonation. In contrast, no neurophysiological data are available about the role of the oro-facial sector of nonhuman primates PMv in this function. In order to address this issue, we recorded PMv neurons from two ...

Phonetograms showing the sound-pressure level (SPL) in loudest and softest possible phonation are frequently used in some voice clinics as an aid for describing the status of voice function. Spectrum analysis of the vowel /a/ produced by ten females and ten males with healthy, untrained voices revealed that the fundamental was mostly the strongest spectrum partial in soft phonation while the lo...

San Felipe Jalapa de D ⁄ ıaz (Jalapa) Mazatec is unusual in possessing a three-way phonation contrast and three-way level tone contrast independent of phonation. This study investigates the acoustics of how phonation and tone interact in this language, and how such interactions are maintained across variables like speaker sex, vowel timecourse, and presence of aspiration in the onset. Using a l...

BACKGROUND Quality and frequency variability of adolescents' voice, during puberty, in different phonation tasks. AIM To analyze the vocal stability of adolescents in three different phonation tasks using a voice perceptual analysis. METHOD Participants were male students (n = 46 individuals), ranging in age from 13 to 15 years, from a public school in Campinas--SP. Voice samples were recor...

This study investigates spectral characteristics of the release bursts in Korean alveolar stops in terms of intensity, center of gravity, and skewness of the spectra of the release burst across phonation types and speakers. The results showed that there was no significant difference in intensity, center of gravity, or skewness across phonation types but a significant difference across speakers....

Although there have been numerous investigations of laryngeal muscle activity during during phonation in the chest and falsetto/head registers in trained and untrained classical singers and non-singers, no research has been conducted examining laryngeal muscle activity during phonation in the chestmix register, a register used extensively by many female commercial singers, particularly for the ...

It is well known that both subglottal and supraglottal spaces play an important role during phonation. Supraglottal region being easy to access is studied by many researchers and understood well whereas subglottal space is not well understood due to the difficulty in visualisation. Various studies suggested the importance of subglottic region in phonation. According to Wyke & Kirchner [1], subg...