vibrato, tremor, electromyography, acoustics
Objectives: The goal of this study was to measure and describe differences between vocal vibrato and essential tremor of the voice in one individual who exhibited both types of modulation.
Study Design: Case study.
Methods: Recordings of spoken and sung vowels produced by the same individual at three effort levels were examined via analysis of acoustic and laryngeal electromyographic (LEMG) signals.
Results: Modulation rate, periodicity and spectral measures of both audio and muscle activation signals revealed generally slower, more prominent and more regular patterns in sung than spoken conditions.
Conditions: There was not always a clear correspondence between LEMG and acoustic measures, but both showed differences between the vibrato and tremor of this individual, suggesting differences in the neural bases of these modulations.
Original Publication Citation
Dromey, C. & Smith, M.E. (2008). Vocal tremor and vibrato in the same person: acoustic and electromyographic differences. Journal of Voice, 22, 541-545.
BYU ScholarsArchive Citation
Dromey, Christopher and Smith, Marshall E., "Vocal Tremor and Vibrato in the Same Person: Acoustic and Electromyographic Differences" (2008). All Faculty Publications. 1778.
David O. McKay School of Education
© 2008 The Voice Foundation. Published by Elsevier Inc. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ This is the author's submitted version of this article. The definitive version can be found at the following DOI http://dx.doi.org/10.1016/j.jvoice.2006.12.001
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