Relationships between the vocal fold vibration parameters and voice intensity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73627954" target="_blank" >RIV/61989592:15310/24:73627954 - isvavai.cz</a>

Výsledek na webu

<a href="https://obd.upol.cz/id_publ/333207841" target="_blank" >https://obd.upol.cz/id_publ/333207841</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Relationships between the vocal fold vibration parameters and voice intensity

Popis výsledku v původním jazyce

Increase of voice intensity is related to changes in vocal fold oscillations.Knowledge about these changes has been insufficient. This study aimed at investigating the quantitative changes in vocal fold oscillations in a healthy female subject when continuously changing the intensity of voice at a constant pitch (i.e., the crescendo phonation). For purpose of this study, we recorded the phonations through the whole pitch range of the subject by high-speed videolaryngoscopy (7200 fps) synchronized with calibrated microphone signals. From the high-speed videos, we created videokymograms from which we obtained the parameters of vocal fold vibrations such as the vibration amplitude, open quotient Qo, opening quotient Qog, closing quotient Qcg, speed quotient Qs, normalized amplitude quotient NAQ, vertical phase difference VPD between the lower and upper margin of the vocal folds, and phase difference between the vibrations of the left and right vocal folds LRPD. With increasing intensity there was the tendency of increasing vibratory amplitude and VPD, anddecreasing Qo and Qog. However, these trends were not obvious in all the phonations, revealing on a complexity of human voice production.

Název v anglickém jazyce

Relationships between the vocal fold vibration parameters and voice intensity

Popis výsledku anglicky

Increase of voice intensity is related to changes in vocal fold oscillations.Knowledge about these changes has been insufficient. This study aimed at investigating the quantitative changes in vocal fold oscillations in a healthy female subject when continuously changing the intensity of voice at a constant pitch (i.e., the crescendo phonation). For purpose of this study, we recorded the phonations through the whole pitch range of the subject by high-speed videolaryngoscopy (7200 fps) synchronized with calibrated microphone signals. From the high-speed videos, we created videokymograms from which we obtained the parameters of vocal fold vibrations such as the vibration amplitude, open quotient Qo, opening quotient Qog, closing quotient Qcg, speed quotient Qs, normalized amplitude quotient NAQ, vertical phase difference VPD between the lower and upper margin of the vocal folds, and phase difference between the vibrations of the left and right vocal folds LRPD. With increasing intensity there was the tendency of increasing vibratory amplitude and VPD, anddecreasing Qo and Qog. However, these trends were not obvious in all the phonations, revealing on a complexity of human voice production.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10610 - Biophysics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Sborník 5. studentského akustického semináře

ISBN

978-80-01-07281-3

ISSN

—

e-ISSN

—

Počet stran výsledku

2

Strana od-do

17-18

Název nakladatele

České vysoké učení technické v Praze

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

25. 1. 2024

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

—