Excessive vocal effort is a common clinical voice symptom, yet the acoustical manifestation
of vocal effort and how that is perceived by speakers and listeners has not been fully …

Purpose This study aimed to examine the relationship between a large set of hypothesized
physiological measures of vocal effort and self-ratings of vocal effort. Method Twenty-six …

Purpose The acoustic measure relative fundamental frequency (RFF) was investigated as a
potential objective measure to track variations in vocal effort within and across individuals …

Purpose In this study, the authors aimed to determine the relationship between relative
fundamental frequency (RFF) and listener perception of vocal effort in individuals with …

Objectives The purpose of this study was to determine the aerodynamic and acoustic
features of speech produced at comfortable, maximal and minimal levels of vocal effort …

Summary Objectives/Hypothesis Vocal effort is the perceived exertion of voicing. Patients
with voice disorders (VDs) frequently complain of increased effort, but currently there exists …

The purpose of this study was to measure the variability of frequency and intensity of
speech, using multiple voice samples obtained over a period of time at a speaker's …

Although the problem of vocal fatigue is not uncommon in people with voice disorders,
research on objective quantifiable indicators of vocal fatigue is limited. It has been …

Objectives This study aimed to quantify the effects of vocal loading and vocal rest using
aerodynamic, acoustic, and self-rating measurements. Methods Ten participants were …

Vocal effort is a physiological measure that accounts for changes in voice production as
vocal loading increases. It has been quantified in terms of sound pressure level (SPL). This …