On the acoustical relevance of supraglottal flow structures to low-frequency voice production

Zhang, Zhaoyan; Neubauer, Juergen

doi:10.1121/1.3515838

Cited by 10 publications

(7 citation statements)

References 18 publications

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“…These studies support the validity of the use of 1D flow models in simulations of phonation. The good agreement with experiment also indicates a small effect of supraglottal flow structures (e.g., vortices and jet flapping) that are neglected in the 1D flow model, which is consistent with our previous experimental study (Zhang and Neubauer, 2010).…”

Section: Discussionsupporting

confidence: 79%

Experimental validation of a three-dimensional reduced-order continuum model of phonation

Farahani¹,

Zhang²

2016

The Journal of the Acoustical Society of America

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Due to the complex nature of the phonation process, a one-dimensional (1D) glottal flow description is often used in current phonation models. Although widely used in voice research, these 1D flow-based phonation models have not been rigorously validated against experiments. In this study, a 1D glottal flow model is coupled with a three-dimensional nonlinear continuum model of the vocal fold and its predictions are compared to physical model experiments. The results show that the 1D flow-based model is able to predict the phonation threshold pressure and onset frequency within reasonable accuracy and to reproduce major vibratory features observed in the experiments.

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Section: Discussionsupporting

confidence: 79%

Experimental validation of a three-dimensional reduced-order continuum model of phonation

Farahani¹,

Zhang²

2016

The Journal of the Acoustical Society of America

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“…A danger of numerical simulations and sophisticated experimental methods such as PIV is that they generate a huge amount of data that are useless if they are not summarized. One can ask critical questions of the actual impact of the flow details on the radiated sound (Zhang & Neubauer 2010). As stated by Pedley (1980) regarding collapsible tubes, "it is not enough to demonstrate that a particular mechanism can cause oscillations in some experiments."…”

Section: Experimental Methods and Analytical Modelsmentioning

confidence: 99%

Aeroacoustics of Musical Instruments

Fabre

Gilbert

Hirschberg

et al. 2012

Annu. Rev. Fluid Mech.

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We are interested in the quality of sound produced by musical instruments and their playability. In wind instruments, a hydrodynamic source of sound is coupled to an acoustic resonator. Linear acoustics can predict the pitch of an instrument. This can significantly reduce the trial-and-error process in the design of a new instrument. We consider deviations from the linear acoustic behavior and the fluid mechanics of the sound production. Realtime numerical solution of the nonlinear physical models is used for sound synthesis in so-called virtual instruments. Although reasonable analytical models are available for reeds, lips, and vocal folds, the complex behavior of flue instruments escapes a simple universal description. Furthermore, to predict the playability of real instruments and help phoneticians or surgeons analyze voice quality, we need more complex models.

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“…The presence of the tract assures an important number of resident seeding particles in the region of interest, thus facilitating flow velocimetry with PIV. As previous research works indicate that the region of major interest from the point of view of sound production lies in the vicinity of the flow discharge [37], the SPIV measurements of the present study are conducted as close as possible to the valve exit.…”

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confidence: 99%