How much loading does cough pose on the vocal folds? Preliminary high speed image analysis comparing coughing and phonation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F21%3A00549843" target="_blank" >RIV/61388998:_____/21:00549843 - isvavai.cz</a>

Výsledek na webu

<a href="https://fupress.com/catalogo/models-and-analysis-of-vocal-emissions-for-biomedical-applications/7364" target="_blank" >https://fupress.com/catalogo/models-and-analysis-of-vocal-emissions-for-biomedical-applications/7364</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.36253/978-88-5518-449-6" target="_blank" >10.36253/978-88-5518-449-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

How much loading does cough pose on the vocal folds? Preliminary high speed image analysis comparing coughing and phonation

Popis výsledku v původním jazyce

Coughing offers a risk for voice problems by increasing vocal loading. This study estimates loading by measuring glottal area variation from high speed images and subglottic pressure from oral pressure Poral. Phonation on [o:] and coughing at the same Poral (6 Pa) and SPL (93 dB6cm) were compared from one healthy male. In coughing, the glottal width (GW) at the middle of vocal folds (VFs) was 25% larger. GW measured at VF processes was almost unchanged. Maximum glottal opening velocity dGW/dt was nearly 40% higher, maximum glottal declination rate (MWDR) was up to 3 times higher, and MWDR at vocal processes was 13% higher. The acceleration and deceleration values for VFs were 40% and 47% higher, respectively. Fo in the last part of coughing decreased from f0=222 Hz to 77 Hz at phonation offset. In [o:] f0 was 116 Hz. Closed quotient CQ≅0.50 in coughing was close to CQ=0.47 in vowel. Vibration frequency of the false vocal folds (FVFs) registered in the first, rough part of coughing, was 293 Hz. Peak-to-peak value of Poral increased 5.4 times in coughing. During vibration of FVFs in coughing, mean Poral increased from 6 Pa to 70 Pa and Poral p-t-p increased 2.45 times.

Název v anglickém jazyce

How much loading does cough pose on the vocal folds? Preliminary high speed image analysis comparing coughing and phonation

Popis výsledku anglicky

Coughing offers a risk for voice problems by increasing vocal loading. This study estimates loading by measuring glottal area variation from high speed images and subglottic pressure from oral pressure Poral. Phonation on [o:] and coughing at the same Poral (6 Pa) and SPL (93 dB6cm) were compared from one healthy male. In coughing, the glottal width (GW) at the middle of vocal folds (VFs) was 25% larger. GW measured at VF processes was almost unchanged. Maximum glottal opening velocity dGW/dt was nearly 40% higher, maximum glottal declination rate (MWDR) was up to 3 times higher, and MWDR at vocal processes was 13% higher. The acceleration and deceleration values for VFs were 40% and 47% higher, respectively. Fo in the last part of coughing decreased from f0=222 Hz to 77 Hz at phonation offset. In [o:] f0 was 116 Hz. Closed quotient CQ≅0.50 in coughing was close to CQ=0.47 in vowel. Vibration frequency of the false vocal folds (FVFs) registered in the first, rough part of coughing, was 293 Hz. Peak-to-peak value of Poral increased 5.4 times in coughing. During vibration of FVFs in coughing, mean Poral increased from 6 Pa to 70 Pa and Poral p-t-p increased 2.45 times.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

<a href="/cs/project/GA19-04477S" target="_blank" >GA19-04477S: Modelování a měření strukturálně-akustických interakcí s prouděním v biomechanice tvorby hlasu člověka</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Models and Analysis of Vocal Emissions for Biomedical Applications

ISBN

978-88-5518-448-9

ISSN

2704-601X

e-ISSN

2704-5846

Počet stran výsledku

4

Strana od-do

109-112

Název nakladatele

Firenze University Press

Místo vydání

Firenze

Místo konání akce

Firenze

Datum konání akce

14. 12. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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