Glottal opening and closing events investigated by electroglottography and super-high-speed video recordings
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F14%3A33148837" target="_blank" >RIV/61989592:15310/14:33148837 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1242/jeb.093203" target="_blank" >http://dx.doi.org/10.1242/jeb.093203</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1242/jeb.093203" target="_blank" >10.1242/jeb.093203</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Glottal opening and closing events investigated by electroglottography and super-high-speed video recordings
Popis výsledku v původním jazyce
Previous research has suggested that the peaks in the first derivative (dEGG) of the electroglottographic (EGG) signal are good approximate indicators of the events of glottal opening and closing. These findings were based on high-speed video (HSV) recordings with frame rates 10 times lower than the sampling frequencies of the corresponding EGG data. The present study attempts to corroborate these previous findings, utilizing super-HSV recordings. The HSV and EGG recordings (sampled at 27 and 44!kHz, respectively) of an excised canine larynx phonation were synchronized by an external TTL signal to within 0.037!ms. Data were analyzed by means of glottovibrograms, digital kymograms, the glottal area waveform andthe vocal fold contact length (VFCL), a newparameter representing the time-varying degree of 'zippering' closure along the anterior-posterior (A-P) glottal axis. The temporal offsets betweenglottal events (depicted in the HSV recordings) and dEGG peaks in the opening and closing
Název v anglickém jazyce
Glottal opening and closing events investigated by electroglottography and super-high-speed video recordings
Popis výsledku anglicky
Previous research has suggested that the peaks in the first derivative (dEGG) of the electroglottographic (EGG) signal are good approximate indicators of the events of glottal opening and closing. These findings were based on high-speed video (HSV) recordings with frame rates 10 times lower than the sampling frequencies of the corresponding EGG data. The present study attempts to corroborate these previous findings, utilizing super-HSV recordings. The HSV and EGG recordings (sampled at 27 and 44!kHz, respectively) of an excised canine larynx phonation were synchronized by an external TTL signal to within 0.037!ms. Data were analyzed by means of glottovibrograms, digital kymograms, the glottal area waveform andthe vocal fold contact length (VFCL), a newparameter representing the time-varying degree of 'zippering' closure along the anterior-posterior (A-P) glottal axis. The temporal offsets betweenglottal events (depicted in the HSV recordings) and dEGG peaks in the opening and closing
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BO - Biofyzika
OECD FORD obor
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Návaznosti výsledku
Projekt
Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2014
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Experimental Biology
ISSN
0022-0949
e-ISSN
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Svazek periodika
217
Číslo periodika v rámci svazku
6
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
14
Strana od-do
955-963
Kód UT WoS článku
000332844300021
EID výsledku v databázi Scopus
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