Loading...
The Effects of a Vocal Loading Task on the Acoustic and Electromyographic Measurements of Vocal Fatigue
Dickson, Emily
Dickson, Emily
Citations
Altmetric:
Soloist
Composer
Publisher
Date
2018
Additional date(s)
2018-12-18
Abstract
The purpose of this study was to determine the effect of a vocal loading task on submandibular muscular activity and acoustic measures of vocal function. Surface electromyography (sEMG) directly assessed muscle activation related to extrinsic laryngeal muscles, and these findings were compared to the acoustic measurements of cepstral peak prominence, low to high spectral ratio, semitone range, and amplitude reflecting the function of intrinsic laryngeal muscles. These measurements were taken from 14 healthy, young adults of the Texas Christian University student population before and after reading Harry Potter and the Sorcerer's Stone for 30 minutes at a volume of at least 75 dB from. Results indicated consistent trends in which acoustic measurement showed more periodic vocal fold movement and reduced vocal range, and sEMG measurement showed reduced muscle activation. An elevated acoustic amplitude suggested that increasing vocal intensity could be a compensatory strategy for individuals with vocal fatigue, but further study is required to test this theory in a larger sample size.
Contents
Subject
voice
vocal fatigue
acoustic
surface electromyography
hivolt
reading task
vocal loading task
phonation
vocal fatigue
acoustic
surface electromyography
hivolt
reading task
vocal loading task
phonation
Subject(s)
Research Projects
Organizational Units
Journal Issue
Genre
Description
Format
Department
Communication Sciences and Disorders