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Undergraduate Thesis: The effects of vocal intensity on vocal attack time (VAT)
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TitleThe effects of vocal intensity on vocal attack time (VAT)
 
AuthorsLee, Tsz-yan, Taro
李芷茵
 
Issue Date2010
 
PublisherThe University of Hong Kong (Pokfulam, Hong Kong)
 
AbstractVocal attack time (VAT), is a parameter which could provide information about vocal folds attack gesture during pre-phonatory phase. The aim of the present study was to investigate the effects of vocal intensity on VAT. Simultaneously, sound pressure level and electroglottographic signals were collected from 50 participants (25 females and 25 males). The participants were asked to read aloud 12 disyllabic word stimuli using three different intensity levels, comfortable intensity first, then soft intensity and finally loud intensity. The data collected were then subjected to calculation of VAT values using a Matlab-based analysis program. Results indicated that both female and male participants demonstrated the shortest VAT values at loud intensity but the longest VAT values at soft intensity. Both gender groups show similar performance across the three intensity levels. This study provides some empirical data to support the use of VAT as a clinical tool for voice assessment.
 
Description"A dissertation submitted in partial fulfillment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2010."
Includes bibliographical references (p. 23-24).
Thesis (B.Sc)--University of Hong Kong, 2010.
 
DegreeBachelor of Science in Speech and Hearing Sciences
 
SubjectVoice -- Measurement.
 
Dept/ProgramSpeech and Hearing Sciences
 
DC FieldValue
dc.contributor.authorLee, Tsz-yan, Taro
 
dc.contributor.author李芷茵
 
dc.date.accessioned2012-11-01T01:14:07Z
 
dc.date.available2012-11-01T01:14:07Z
 
dc.date.issued2010
 
dc.description.abstractVocal attack time (VAT), is a parameter which could provide information about vocal folds attack gesture during pre-phonatory phase. The aim of the present study was to investigate the effects of vocal intensity on VAT. Simultaneously, sound pressure level and electroglottographic signals were collected from 50 participants (25 females and 25 males). The participants were asked to read aloud 12 disyllabic word stimuli using three different intensity levels, comfortable intensity first, then soft intensity and finally loud intensity. The data collected were then subjected to calculation of VAT values using a Matlab-based analysis program. Results indicated that both female and male participants demonstrated the shortest VAT values at loud intensity but the longest VAT values at soft intensity. Both gender groups show similar performance across the three intensity levels. This study provides some empirical data to support the use of VAT as a clinical tool for voice assessment.
 
dc.description.naturepublished_or_final_version
 
dc.description"A dissertation submitted in partial fulfillment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2010."
 
dc.descriptionIncludes bibliographical references (p. 23-24).
 
dc.descriptionThesis (B.Sc)--University of Hong Kong, 2010.
 
dc.description.thesisdisciplineSpeech and Hearing Sciences
 
dc.description.thesislevelBachelor's
 
dc.description.thesisnameBachelor of Science in Speech and Hearing Sciences
 
dc.identifier.hkulb4813147
 
dc.identifier.urihttp://hdl.handle.net/10722/173717
 
dc.languageeng
 
dc.publisherThe University of Hong Kong (Pokfulam, Hong Kong)
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.rightsThe author retains all proprietary rights, (such as patent rights) and the right to use in future works.
 
dc.subject.lcshVoice -- Measurement.
 
dc.titleThe effects of vocal intensity on vocal attack time (VAT)
 
dc.typeUG_Thesis
 
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<contributor.author>&#26446;&#33463;&#33589;</contributor.author>
<date.accessioned>2012-11-01T01:14:07Z</date.accessioned>
<date.available>2012-11-01T01:14:07Z</date.available>
<date.issued>2010</date.issued>
<identifier.uri>http://hdl.handle.net/10722/173717</identifier.uri>
<description>&quot;A dissertation submitted in partial fulfillment of the requirements for the Bachelor of Science (Speech and Hearing Sciences), The University of Hong Kong, June 30, 2010.&quot;</description>
<description>Includes bibliographical references (p. 23-24).</description>
<description>Thesis (B.Sc)--University of Hong Kong, 2010.</description>
<description.abstract>Vocal attack time (VAT), is a parameter which could provide information about vocal folds
attack gesture during pre-phonatory phase. The aim of the present study was to investigate
the effects of vocal intensity on VAT. Simultaneously, sound pressure level and
electroglottographic signals were collected from 50 participants (25 females and 25 males).
The participants were asked to read aloud 12 disyllabic word stimuli using three different
intensity levels, comfortable intensity first, then soft intensity and finally loud intensity. The
data collected were then subjected to calculation of VAT values using a Matlab-based analysis
program. Results indicated that both female and male participants demonstrated the shortest
VAT values at loud intensity but the longest VAT values at soft intensity. Both gender groups
show similar performance across the three intensity levels. This study provides some
empirical data to support the use of VAT as a clinical tool for voice assessment.</description.abstract>
<language>eng</language>
<publisher>The University of Hong Kong (Pokfulam, Hong Kong)</publisher>
<rights>Creative Commons: Attribution 3.0 Hong Kong License</rights>
<rights>The author retains all proprietary rights, (such as patent rights) and the right to use in future works.</rights>
<subject.lcsh>Voice -- Measurement.</subject.lcsh>
<title>The effects of vocal intensity on vocal attack time (VAT)</title>
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