Four examples of the use of vocal fold contact phase measurement are discussed for unilateral paresis. In each case this aspect of voice quality is of greater importance than the physical measurement of loudness and pitch related parameters. For three of the cases electrostimulation has been used as a main part of the treatment. Phonation in both connected speech and, for comparison, in sustain...

OBJECTIVE To elucidate capabilities and limitations of the VocaLog, a device marketed to log-calibrated dB sound pressure level (SPL). STUDY DESIGN The study design varied depending on the experiment. All were prospective. Some were case series, and others were cohort studies without controls. METHOD Experiments were conducted to determine (1) whether the VocaLog logged phonatory activity a...

PURPOSE This clinical focus article describes an exploratory case study addressing reduction of vocal loudness in a young adult with a history of autism spectrum disorder and developmental delay. The need for a short-term pullout individual intervention arose from his participation in the Advancing Language and Literacy group, a program that provides support for enhancement of speech, language,...

The goal of this study is to quantify the effects of vocal fold nodules on vibratory motion in children using high-speed videoendoscopy. Differences in vibratory motion were evaluated in 20 children with vocal fold nodules (5-11 years) and 20 age and gender matched typically developing children (5-11 years) during sustained phonation at typical pitch and loudness. Normalized kinematic features ...

A síndrome gripal ocasionada pelo novo coronavírus acarreta manifestações clínicas das vias aéreas respiratórias tanto superiores quanto inferiores, que podem impactar a produção vocal. Objetivo: Descrever as alterações vocais produzidas pela SARS-CoV-2, nos momentos durante e após cura da doença. Metodologia: Estudo retrospectivo, constituído por amostra de conveniência quatro casos clínicos (...

This is a review of some work carried out over the last decades at the Speech Music Hearing Department, KTH, where the analysis-by-synthesis strategy was applied to singing. The origin of the work was a hardware synthesis machine combined with a control program, which was a modified version of a textto-speech conversion system. Two applications are described, one concerning vocal loudness varia...

The messa di voce (MDV) is a vocal exercise used by singers, consisting of a crescendo and decrescendo on a single sustained note. In this study we analysed recorded MDVs sung by tertiary singing students to examine the extent to which MDVs have a linear crescendo and linear decrescendo. The MDVs studied were recorded over a 3-year period, as a cohort of classical singing students progressed th...

The goal of this investigation was to test a new methodology for measuring amplitude modulation (AM) at the level of the vocal folds during vibrato in trained singers, because previous research has suggested that AM arises in large part as an acoustic epiphenomenon through an interaction of the harmonics in the laryngeal source with the resonances of the vocal tract as the fundamental frequency...

For voiced speech the main excitation of the vocal tract occurs at the end of the glottal closing phase when the rate of change of the flow reaches its absolute maximum. This study presents a straightforward method that yields a numerical value to characterize the effect of the main excitation on vocal intensity. The method, Energy Ratio by Modified Excitation (ERME), takes advantage of the glo...