Effects of a Straw Phonation Protocol on Acoustic Measures of an SATB Chorus Singing Two Contrasting Renaissance Works.
Identifieur interne : 000081 ( Main/Corpus ); précédent : 000080; suivant : 000082Effects of a Straw Phonation Protocol on Acoustic Measures of an SATB Chorus Singing Two Contrasting Renaissance Works.
Auteurs : Jeremy N. Manternach ; Chad Clark ; James F. DaughertySource :
- Journal of voice : official journal of the Voice Foundation [ 1873-4588 ] ; 2017.
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- KwdEn :
- MESH :
Abstract
BACKGROUND
Researchers have found that semi-occluded vocal tract (SOVT) exercises may increase vocal economy by reducing phonation threshold pressure and effort while increasing or maintaining consistent acoustic output. This research has focused solely on individual singers. Much singing instruction, however, takes place in choral settings. Choral singers may use different resonance strategies or unconsciously adjust their singing based on the ability to hear their own sound in relation to others. Results of studies with individual singers, then, may not be directly applicable to choral settings.
OBJECTIVE
The purpose of this investigation was to measure the effect of an SOVT protocol (ie, straw phonation) on acoustic changes of conglomerate, choral sound.
STUDY DESIGN
This is a quasi-experimental, one-group, pretest-posttest design.
METHODS
Participants in this study constituted an intact SATB choir (soprano, alto, tenor, and bass) (N = 15 singers) who performed from memory two unaccompanied pieces of varied tempos from memory, participated in a 4-minute straw phonation protocol with a small stirring straw, and then sang each piece a second time.
RESULTS
The long-term average spectrum results indicated small, statistically significant increases in spectral energy for both pieces in the 0-10 kHz (.32 and .20 dB Sound Pressure Level) and 2-4 kHz regions (.46 and .25 dB SPL).
CONCLUSION
These results, although not likely audible to average hearing humans, seem consistent with the assertion that singers enjoy vocal benefits with consistent or increased vocal output. SOVT exercises, therefore, may be useful as a time-efficient way to evoke more efficient and economical singing during choral warm-up and voice building procedures.
DOI: 10.1016/j.jvoice.2016.12.008
PubMed: 28214051
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pubmed:28214051Le document en format XML
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<author><name sortKey="Manternach, Jeremy N" sort="Manternach, Jeremy N" uniqKey="Manternach J" first="Jeremy N" last="Manternach">Jeremy N. Manternach</name>
<affiliation><nlm:affiliation>Vocal/Choral Music Education, University of Iowa, Iowa City, Iowa. Electronic address: jeremy-manternach@uiowa.edu.</nlm:affiliation>
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<author><name sortKey="Clark, Chad" sort="Clark, Chad" uniqKey="Clark C" first="Chad" last="Clark">Chad Clark</name>
<affiliation><nlm:affiliation>Vocal/Choral Music Education, University of Iowa, Iowa City, Iowa.</nlm:affiliation>
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<author><name sortKey="Daugherty, James F" sort="Daugherty, James F" uniqKey="Daugherty J" first="James F" last="Daugherty">James F. Daugherty</name>
<affiliation><nlm:affiliation>Vocal/Choral Pedagogy Research Group, University of Kansas, Lawrence, Kansas.</nlm:affiliation>
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<author><name sortKey="Clark, Chad" sort="Clark, Chad" uniqKey="Clark C" first="Chad" last="Clark">Chad Clark</name>
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<author><name sortKey="Daugherty, James F" sort="Daugherty, James F" uniqKey="Daugherty J" first="James F" last="Daugherty">James F. Daugherty</name>
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<front><div type="abstract" xml:lang="en"><p><b>BACKGROUND</b>
</p>
<p>Researchers have found that semi-occluded vocal tract (SOVT) exercises may increase vocal economy by reducing phonation threshold pressure and effort while increasing or maintaining consistent acoustic output. This research has focused solely on individual singers. Much singing instruction, however, takes place in choral settings. Choral singers may use different resonance strategies or unconsciously adjust their singing based on the ability to hear their own sound in relation to others. Results of studies with individual singers, then, may not be directly applicable to choral settings.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>OBJECTIVE</b>
</p>
<p>The purpose of this investigation was to measure the effect of an SOVT protocol (ie, straw phonation) on acoustic changes of conglomerate, choral sound.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>STUDY DESIGN</b>
</p>
<p>This is a quasi-experimental, one-group, pretest-posttest design.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>METHODS</b>
</p>
<p>Participants in this study constituted an intact SATB choir (soprano, alto, tenor, and bass) (N = 15 singers) who performed from memory two unaccompanied pieces of varied tempos from memory, participated in a 4-minute straw phonation protocol with a small stirring straw, and then sang each piece a second time.</p>
</div>
<div type="abstract" xml:lang="en"><p><b>RESULTS</b>
</p>
<p>The long-term average spectrum results indicated small, statistically significant increases in spectral energy for both pieces in the 0-10 kHz (.32 and .20 dB Sound Pressure Level) and 2-4 kHz regions (.46 and .25 dB SPL).</p>
</div>
<div type="abstract" xml:lang="en"><p><b>CONCLUSION</b>
</p>
<p>These results, although not likely audible to average hearing humans, seem consistent with the assertion that singers enjoy vocal benefits with consistent or increased vocal output. SOVT exercises, therefore, may be useful as a time-efficient way to evoke more efficient and economical singing during choral warm-up and voice building procedures.</p>
</div>
</front>
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<ArticleTitle>Effects of a Straw Phonation Protocol on Acoustic Measures of an SATB Chorus Singing Two Contrasting Renaissance Works.</ArticleTitle>
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<Abstract><AbstractText Label="BACKGROUND" NlmCategory="BACKGROUND">Researchers have found that semi-occluded vocal tract (SOVT) exercises may increase vocal economy by reducing phonation threshold pressure and effort while increasing or maintaining consistent acoustic output. This research has focused solely on individual singers. Much singing instruction, however, takes place in choral settings. Choral singers may use different resonance strategies or unconsciously adjust their singing based on the ability to hear their own sound in relation to others. Results of studies with individual singers, then, may not be directly applicable to choral settings.</AbstractText>
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<CopyrightInformation>Copyright © 2017 The Voice Foundation. Published by Elsevier Inc. All rights reserved.</CopyrightInformation>
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