Influence of Overpressure Breathing on Vowel Formant Frequencies

• Autorzy: Vojnović Milan , Mijić Miomir , Šumarac Pavlović Dragana , Vojnović Nebojša

Identyfikatory

DOI

10.24425/aoa.2021.136571

• Języki publikacji: EN

Abstrakty

EN

Voice controlled management systems are based on speech recognition techniques. The use of such systems in combat aircraft is complex due to a number of critical factors which affect the accuracy of speech recognition, such as high level of ambient noise and vibration, use of oxygen masks, serious psycho-physical stress of speakers, etc. One of the specificity of the oxygen mask application is overpressure breathing. The results of the simulations presented in this paper show that the presence of overpressure on the order of 1000 Pa in the vocal tract has a significant influence on the first two formant frequencies. The formants discrimination field is significantly reduced when oxygen mask is used, influencing both perceptive and automatic discrimination of spoken vowels.

Słowa kluczowe

EN

mask; overpressure; transfer characteristic; vocal tract

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2021
• Tom: Vol. 46, No. 1
• Strony: 177--181
• Opis fizyczny: Bibliogr. 12 poz., wykr.

Twórcy

autor

Vojnović Milan

• Life Activities Advancement Center, Belgrade, Serbia

autor

Mijić Miomir

• University of Belgrade, School of Electrical Engineering, Belgrade, Serbia

autor

Šumarac Pavlović Dragana

• University of Belgrade, School of Electrical Engineering, Belgrade, Serbia

autor

Vojnović Nebojša

• University of Belgrade, School of Electrical Engineering, Belgrade, Serbia

Bibliografia

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• 10. Svirsky M., Stevens K., Matthies M., Manzella J., Perkell J., Wilhelms-Tricarico R. (1997), Tongue surface displacement during bilabial stops, The Journal of the Acoustical Society of America, 102 (1): 562-571, doi: 10.1121/1.419729.
• 11. Vojnović M., Mijić M. (2005), An improved model for the acoustic radiation impedance of the mouth based on an equivalent electrical network, Applied Acoustics, 66 (5): 481-499, doi: 10.1016/j.apacoust.2004.09.002.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).