Resonance tube phonation in water - the effect of tube diameter and water depth on back pressure and bubble characteristics at different airflows

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73586568" target="_blank" >RIV/61989592:15310/18:73586568 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0892199717300401" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0892199717300401</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jvoice.2017.04.015" target="_blank" >10.1016/j.jvoice.2017.04.015</a>

Result language

angličtina

Original language name

Resonance tube phonation in water - the effect of tube diameter and water depth on back pressure and bubble characteristics at different airflows

Original language description

Objectives:. Resonance tube phonation with tube end in water is a voice therapy method in which the patient phonates through a glass tube, keeping the free end of the tube submerged in water, creating bubbles. The purpose of this experimental study was to determine flow-pressure relationship, flow thresholds between bubble types, and bubble frequency as a function of flow and back volume. Methods. A flow-driven vocal tract simulator was used for recording the back pressure produced by resonance tubes with inner diameters of 8 and 9 mm submerged at water depths of 0-7 cm. Visual inspection of bubble types through video recording was also performed. Results. The static back pressure was largely determined by the water depth. The narrower tube provided a slightly higher back pressure for a given flow and depth. The amplitude of the pressure oscillations increased with flow and depth. Depending on flow, the bubbles were emitted from the tube in three distinct types with increasing flow: one by one, pairwise, and in a chaotic manner. The bubble frequency was slightly higher for the narrower tube. An increase in back volume led to a decrease in bubble frequency. Conclusions. This study provides data on the physical properties of resonance tube phonation with the tube end in water. This information will be useful in future research when looking into the possible effects of this type of voice training.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10610 - Biophysics

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)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Voice

ISSN

0892-1997

e-ISSN

—

Volume of the periodical

32

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

"126.e11"-"126.e22"

UT code for WoS article

000425917400020

EID of the result in the Scopus database

2-s2.0-85019390057