Naslov
THE ACOUSTIC CHARACTERISTICS OF VOICE OF FEMALE TEACHERS AND THE EFFECT OF SMOKING

Autori
Kovačić, Gordana ; Domitrović, Hrvoje

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of Second Congress of Alps-Adria Acoustics Association and First Congress of Acoustical Society of Croatia / Horvat, Marko ; Jambrosic, Kristian - Zagreb : Hrvatsko akustičko društvo (HAD), 2005, 326-331

ISBN
953-95097-0-X

Skup
Second Congress of Alps-Adria Acoustics Association and First Congress of Acoustical Society of Croatia

Mjesto i datum
Opatija, Hrvatska, 23.06.2005. - 24.06.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
teachers; voice; smoking; acoustic analysis; vocal F0

Sažetak
The aims of the present study were (1) to analyze the acoustic and respiratory-phonatory (ARP) parameters of voices of female teachers, and (2) to examine the effect of smoking on ARP parameters. The subject sample consisted of 51 females, 18 smokers and 33 non-smokers. The prolonged phonations of the vowel /a/ were acoustically analyzed by a computer program PRAAT. The following ARP variables were examined: F0 and voice loudness, jitter, HNR, vocal rise time, maximum phonation and friction times and s/z ratio. The data were processed on the descriptive and on the multivariate level. The results showed low F0 , inadequate vocal rise time, and insufficient s/z ratio for the total sample of subjects. Four components explaining 75% of the variance were extracted by a factor analysis. As for smoking, the results of variance analysis showed significantly lower values (p<0, 05) for smokers in speaking F0 and maximum friction time only, the latter one not being pathological though. However, the results of the discriminant analysis showed no significant differences for the set of ARP variables between smokers and non-smokers, thus the hypothesis about the effect of smoking on ARP variables was rejected. Nevertheless, lower speaking F0 (lower voice pitch) was shown to be significant predictor of smoking.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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