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 varying degrees of vocal hyperfunction. METHOD: Thirty women diagnosed with voice disorders commonly associated with vocal hyperfunction and 10 healthy women provided speech samples that were used to obtain parameters of RFF. Twelve listeners judged the speech samples for overall severity and vocal effort (VE) using rating scales. RESULTS: Significant but relatively weak negative correlations were found between perceptual measures and offset RFF parameters. Although offset RFF was increased in healthy participants relative to speakers with voice disorders, no differences were seen in RFF as a function of severity of VE in individuals with voice disorders. CONCLUSIONS: Although a statistically significant correlation between offset RFF and VE was found, examination of data as a function of both VE and health status indicated that RFF more accurately classifies the presence of a voice disorder than does severity of voice quality or VE. There is a need for further research to investigate the clinical utility of RFF measures for assessment of rehabilitation progress.
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 varying degrees of vocal hyperfunction. METHOD: Thirty women diagnosed with voice disorders commonly associated with vocal hyperfunction and 10 healthy women provided speech samples that were used to obtain parameters of RFF. Twelve listeners judged the speech samples for overall severity and vocal effort (VE) using rating scales. RESULTS: Significant but relatively weak negative correlations were found between perceptual measures and offset RFF parameters. Although offset RFF was increased in healthy participants relative to speakers with voice disorders, no differences were seen in RFF as a function of severity of VE in individuals with voice disorders. CONCLUSIONS: Although a statistically significant correlation between offset RFF and VE was found, examination of data as a function of both VE and health status indicated that RFF more accurately classifies the presence of a voice disorder than does severity of voice quality or VE. There is a need for further research to investigate the clinical utility of RFF measures for assessment of rehabilitation progress.
Authors: Elizabeth S Heller Murray; Roxanne K Segina; Geralyn Harvey Woodnorth; Cara E Stepp Journal: J Speech Lang Hear Res Date: 2020-02-14 Impact factor: 2.297
Authors: Elizabeth S Heller Murray; Yu-An S Lien; Jarrad H Van Stan; Daryush D Mehta; Robert E Hillman; J Pieter Noordzij; Cara E Stepp Journal: J Speech Lang Hear Res Date: 2017-06-10 Impact factor: 2.297
Authors: Jennifer M Vojtech; Roxanne K Segina; Daniel P Buckley; Katharine R Kolin; Monique C Tardif; J Pieter Noordzij; Cara E Stepp Journal: J Acoust Soc Am Date: 2019-11 Impact factor: 1.840
Authors: Yu-An S Lien; Carolyn R Calabrese; Carolyn M Michener; Elizabeth Heller Murray; Jarrad H Van Stan; Daryush D Mehta; Robert E Hillman; J Pieter Noordzij; Cara E Stepp Journal: J Speech Lang Hear Res Date: 2015-10 Impact factor: 2.297
Authors: Jarrad H Van Stan; Daryush D Mehta; Dagmar Sternad; Robert Petit; Robert E Hillman Journal: J Speech Lang Hear Res Date: 2017-04-14 Impact factor: 2.297