Individual Monitoring of Vocal Effort with Relative Fundamental Frequency: Relationships with Aerodynamics and Listener Perception

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. Method: Twelve speakers with healthy voices created purposeful modulations in their vocal effort during speech tasks...

Full description

Saved in:
Bibliographic Details
Published in:Journal of speech, language, and hearing research language, and hearing research, 2015-06, Vol.58 (3), p.566-575
Main Authors: Lien, Yu-An S, Michener, Carolyn M, Eadie, Tanya L, Stepp, Cara E
Format: Article
Language:English
Subjects:
Acoustic phonetics
Acoustics
Acoustics research
Agreements
Behavior
Female
Humans
Listening
Male
Measurement
Methods
Musicians & conductors
Perception
Phonemes
Physical Exertion
Quality
Sound Spectrography
Speech
Speech Acoustics
Speech disorders
Speech Perception
Speech production
Speech Production Measurement
Studies
Voice
Voice Disorders
Young Adult
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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. Method: Twelve speakers with healthy voices created purposeful modulations in their vocal effort during speech tasks. RFF and an aerodynamic measure of vocal effort, the ratio of sound pressure level to subglottal pressure level, were estimated from the aerodynamic and acoustic signals. Twelve listeners also judged the speech samples for vocal effort using the visual sort and rate method. Results: Relationships between RFF and both the aerodynamic and perceptual measures of vocal effort were weak across speakers (R[superscript 2] = 0.06-0.26). Within speakers, relationships were variable but much stronger on average (R[superscript 2] = 0.45-0.56). Conclusions: RFF showed stronger relationships between both the aerodynamic and perceptual measures of vocal effort when examined within individuals versus across individuals. Future work is necessary to establish these relationships in individuals with voice disorders across the therapeutic process.
ISSN:1092-4388
1558-9102
DOI:10.1044/2015_JSLHR-S-14-0194