Are source-filter interactions detectable in classical singing during vowel glides?

Echternach, Matthias; Herbst, Christian T.; Koeberlein, Marie; Story, Brad; Doellinger, Michael und Gellrich, Donata (2021): Are source-filter interactions detectable in classical singing during vowel glides? In: Journal of the Acoustical Society of America, Bd. 149, Nr. 6: S. 4565-4578

Abstract

In recent studies, it has been assumed that vocal tract formants (F-n) and the voice source could interact. However, there are only few studies analyzing this assumption in vivo. Here, the vowel transition /i/-/a/-/u/-/i/ of 12 professional classical singers (6 females, 6 males) when phonating on the pitch D4 [fundamental frequency (integral(o)) ca. 294 Hz] were analyzed using transnasal high speed videoendoscopy (20.000 fps), electroglottography (EGG), and audio recordings. F-n data were calculated using a cepstral method. Source-filter interaction candidates (SFICs) were determined by (a) algorithmic detection of major intersections of F-n/n integral(o) and (b) perceptual assessment of the EGG signal. Although the open quotient showed some increase for the /i-a/ and /u-i/ transitions, there were no clear effects at the expected F-n/n integral(o) intersections. In contrast, integral(o) adjustments and changes in the phonovibrogram occurred at perceptually derived SFICs, suggesting level-two interactions. In some cases, these were constituted by intersections between higher n integral(o) and F-n. The presented data partially corroborates that vowel transitions may result in level-two interactions also in professional singers. However, the lack of systematically detectable effects suggests either the absence of a strong interaction or existence of confounding factors, which may potentially counterbalance the level-two-interactions.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0001-4966
• Sprache: Englisch