Document Detail

Variability in voice fundamental frequency of sustained vowels in speakers with sensorineural hearing loss.
MedLine Citation:
PMID:  21227645     Owner:  NLM     Status:  MEDLINE    
In a previous study, the low-frequency modulation extent (LFP) of the vocal fundamental frequency (F(0)) showed a significant increase in the presence of binaural noise masking for the healthy individuals. This study was to investigate the F(0) of subjects with sensorineural hearing loss (SNHL) using sustained phonations to explore the changes of F(0) modulations in SNHL. Twenty-three SNHL subjects and 14 age-matched subjects without hearing loss were enrolled in the study. Sustained vocalizations of vowel /a/ for more than 5 seconds were digitally recorded. The F(0) contour of each phonation was acquired using digital signal processing. The modulation extent at different frequencies was obtained using Fourier transformation of F(0) contour. The LFP of F(0) (<3Hz) was significantly greater for the SNHL subjects (P<0.001, independent samples t test). Although the correlation analysis was limited to the auditory-evoked brainstem response (ABR) thresholds because of their disagreement with the pure-tone thresholds in some subjects with functional hearing disorder, the correlation between LFP and ABR thresholds was significant (ρ=0.45, P=0.03, Spearman's correlation analysis). The LFPs of F(0) were significantly greater for the SNHL subjects and the changes of F(0) modulations could be detected using power spectral analysis of F(0). The method may be used for evaluation of audio-vocal feedback in SNHL.
Guo-She Lee
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2011-01-12
Journal Detail:
Title:  Journal of voice : official journal of the Voice Foundation     Volume:  26     ISSN:  1873-4588     ISO Abbreviation:  J Voice     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-10     Completed Date:  2012-05-22     Revised Date:  2013-05-02    
Medline Journal Info:
Nlm Unique ID:  8712262     Medline TA:  J Voice     Country:  United States    
Other Details:
Languages:  eng     Pagination:  24-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 The Voice Foundation. Published by Mosby, Inc. All rights reserved.
Department of Otorhinolaryngology, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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MeSH Terms
Acoustic Stimulation / instrumentation
Audiometry, Pure-Tone
Auditory Threshold / physiology*
Evoked Potentials, Auditory, Brain Stem / physiology*
Follow-Up Studies
Fourier Analysis
Hearing Loss, Sensorineural / physiopathology*
Middle Aged
Phonation / physiology*

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