Resonance Tube or Lax Vox?
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F17%3A00469140" target="_blank" >RIV/61388998:_____/17:00469140 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jvoice.2016.10.024" target="_blank" >http://dx.doi.org/10.1016/j.jvoice.2016.10.024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jvoice.2016.10.024" target="_blank" >10.1016/j.jvoice.2016.10.024</a>
Alternative languages
Result language
angličtina
Original language name
Resonance Tube or Lax Vox?
Original language description
Objective. This study compares the flow resistance of Resonance tube (RT) and Lax Vox tube (LVT) when submerged 2 cm and 10 cm in water, as well as phonation into the tubes in these conditions.nMethods. In the in vitro experiment, the air pressure for flow rates of 60-600 mL/s was measured at the tube inlet, when the outer end of the tube was submerged 2 cm and 10 cm below water surface in 30 degrees, 45 degrees, and 90 degrees angle. In the in vivo experiment, 14 subjects phonated in habitual loudness and loudly into both tubes, with the outer end 2 cm and 10 cm in water. RT was immersed in a 45 degrees angle and LVT in a 90 degrees angle in water. Oral pressure, contact quotient from electroglottographic signal, and sound pressure level were studied. Sensations during phonation were reported in an interview.nResults. Flow resistance was slightly lower with LVT than with RT, and slightly lower for smaller immersion angles. In habitual loudness, transglottic pressure and frequency of oral pressure variation were lower for LVT phonation and amplitude of oral pressure variation was higher for LVT 2 cm in water. Some subjects preferred RT, whereas others preferred LVT or reported no differences between them.nConclusions. The tubes differed slightly in flow resistance. Higher oral pressure oscillation with LVT 2 cm in water may offer stronger massage effect on vocal folds.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics
Result continuities
Project
<a href="/en/project/GA16-01246S" target="_blank" >GA16-01246S: Computational and experimental modelling of self-induced vibrations of vocal folds and influence of their impairments on human voice</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Voice
ISSN
0892-1997
e-ISSN
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Volume of the periodical
31
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
430-437
UT code for WoS article
000406147000006
EID of the result in the Scopus database
2-s2.0-85008430178