Face vibration measurement in singing – pilot study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61384984%3A51110%2F21%3AN0000011" target="_blank" >RIV/61384984:51110/21:N0000011 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S1746809421000240" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S1746809421000240</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.bspc.2021.102427" target="_blank" >10.1016/j.bspc.2021.102427</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Face vibration measurement in singing – pilot study

Popis výsledku v původním jazyce

This study presents a full-field measurement of facial vibrations employing electronic speckle pattern interferometry (ESPI) on one male subject. The measurement was performed in three states of mutual position of the first formant and fundamental frequency, where an effect of resonance of the vocal tract could be expected. Synchronous measurements of facial vibrations employing an accelerometer confirmed the dominance of the harmonic component closest to the position of the first formant in the entire area of the head and neck. In addition to the amplitude ratios of facial surface oscillations, ESPI also distinguished the phase differences. Standing waves dominate in the oscillations of the face. The area around the corners of the mouth always oscillated most strongly and coincided with the oscillation of the upper neck. Above the lower jaws, there was a hint of a travelling wave that progressed from the mandible angle towards the mouth corner and the neck. The biggest velocities and displacement measured in F4 for vowel /u/ could be explained as a resonance effect when the first harmonics match the first formant.

Název v anglickém jazyce

Face vibration measurement in singing – pilot study

Popis výsledku anglicky

This study presents a full-field measurement of facial vibrations employing electronic speckle pattern interferometry (ESPI) on one male subject. The measurement was performed in three states of mutual position of the first formant and fundamental frequency, where an effect of resonance of the vocal tract could be expected. Synchronous measurements of facial vibrations employing an accelerometer confirmed the dominance of the harmonic component closest to the position of the first formant in the entire area of the head and neck. In addition to the amplitude ratios of facial surface oscillations, ESPI also distinguished the phase differences. Standing waves dominate in the oscillations of the face. The area around the corners of the mouth always oscillated most strongly and coincided with the oscillation of the upper neck. Above the lower jaws, there was a hint of a travelling wave that progressed from the mandible angle towards the mouth corner and the neck. The biggest velocities and displacement measured in F4 for vowel /u/ could be explained as a resonance effect when the first harmonics match the first formant.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10307 - Acoustics

Projekt

—

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 periodika

Biomedical Signal Processing and Control

ISSN

1746-8094

e-ISSN

—

Svazek periodika

67

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

000640914200006

EID výsledku v databázi Scopus

2-s2.0-85103078080