Lodermeyer A, Mohamadi Bagheri E, Kniesburges S, Näger C, Probst J, Döllinger M, Becker S (2021)
Publication Type: Journal article, Original article
Publication year: 2021
Book Volume: 150
Pages Range: 3485-3499
Journal Issue: 5
DOI: 10.1121/10.0006974
Sound generation during voiced speech remains an open research topic because the underlying process within the human larynx is hardly accessible for direct measurements. In the present study, harmonic sound generation during phonation was investigated with a model that replicates the fully coupled fluid-structure-acoustic interaction (FSAI). The FSAI was captured using a multi-modal approach by measuring the flow and acoustic source fields based on particle image velocimetry, as well as the surface velocity of the vocal folds based on laser vibrometry and high-speed imaging. Strong harmonic sources were localized near the glottis, as well as further downstream, during the presence of the supraglottal jet. The strongest harmonic content of the vocal fold surface motion was verified for the area near the glottis, which directly interacts with the glottal jet flow. Also, the acoustic back-coupling of the formant frequencies onto the harmonic oscillation of the vocal folds was verified. These findings verify that harmonic sound generation is the result of a strong interrelation between the vocal fold motion, modulated flow field, and vocal tract geometry.
APA:
Lodermeyer, A., Mohamadi Bagheri, E., Kniesburges, S., Näger, C., Probst, J., Döllinger, M., & Becker, S. (2021). The mechanisms of harmonic sound generation during phonation: A multi-modal measurement-based approach. Journal of the Acoustical Society of America, 150(5), 3485-3499. https://dx.doi.org/10.1121/10.0006974
MLA:
Lodermeyer, Alexander, et al. "The mechanisms of harmonic sound generation during phonation: A multi-modal measurement-based approach." Journal of the Acoustical Society of America 150.5 (2021): 3485-3499.
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