The effect of phonation into a straw on the vocal tract adjustments and formant frequencies. A preliminary MRI study on a single subject completed with acoustic results

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00373267" target="_blank" >RIV/61388998:_____/12:00373267 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15310/12:33139111

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1746809411000097" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1746809411000097</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.bspc.2011.02.004" target="_blank" >10.1016/j.bspc.2011.02.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of phonation into a straw on the vocal tract adjustments and formant frequencies. A preliminary MRI study on a single subject completed with acoustic results

Popis výsledku v původním jazyce

Phonation into a straw is used in voice training and therapy. This study investigated its? effect on the vocal tract adjustments. Magnetic resonance images were taken from one female phonating first on [a:], then into a plastic drinking straw and then again [a:]. Acoustic samples were recorded from her and 10 other females. The samples were analyzed for fundamental frequency, sound pressure level (SPL), five lowest formant frequencies (F1-F5) and SPL of the speaker?s formant cluster range (2,5-4,5 kHz).During and after phonation into a straw, the midsagittal area of the vocal tract increased and the velar closure improved. The ratio of the transversal area of the lower pharynx over that epilarynx increased both during (27%) and after the straw (20%).The overall SPL of the speaker?s formant cluster increased. The frequencies of F2, F4 a F5 decreased, while F3 increased. The distances between F4 and F3 and F5 and F4 decreased by 49%. For the 10 subjects, F3 increased, F4 decreased and

Název v anglickém jazyce

The effect of phonation into a straw on the vocal tract adjustments and formant frequencies. A preliminary MRI study on a single subject completed with acoustic results

Popis výsledku anglicky

Phonation into a straw is used in voice training and therapy. This study investigated its? effect on the vocal tract adjustments. Magnetic resonance images were taken from one female phonating first on [a:], then into a plastic drinking straw and then again [a:]. Acoustic samples were recorded from her and 10 other females. The samples were analyzed for fundamental frequency, sound pressure level (SPL), five lowest formant frequencies (F1-F5) and SPL of the speaker?s formant cluster range (2,5-4,5 kHz).During and after phonation into a straw, the midsagittal area of the vocal tract increased and the velar closure improved. The ratio of the transversal area of the lower pharynx over that epilarynx increased both during (27%) and after the straw (20%).The overall SPL of the speaker?s formant cluster increased. The frequencies of F2, F4 a F5 decreased, while F3 increased. The distances between F4 and F3 and F5 and F4 decreased by 49%. For the 10 subjects, F3 increased, F4 decreased and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F08%2F1155" target="_blank" >GA101/08/1155: Počítačové a fyzikální modelování vibroakustických vlastností vokálního traktu člověka s ohledem na optimalizaci hlasové kvality</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

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

7

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

50-57

Kód UT WoS článku

000300334600007

EID výsledku v databázi Scopus

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