Auditory-perceptual Parameters as Predictors of Voice Acoustic Measures

Nguyen, Duong Duy; Madill, Catherine

doi:10.1016/j.jvoice.2023.02.030

Cited by 3 publications

(1 citation statement)

References 54 publications

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“…The HNR values reported are in the range of values found for ex vivo studies in the literature [55,56]. They are, however, at the lower end of what is normally found in vivo [57][58][59]. In our case, this might be attributed to the high volume flow rates needed for the synthetic larynx model to oscillate, leading to increased turbulence broadband noise generation.…”

Section: Acoustic Radiationcontrasting

confidence: 45%

An Investigation of Acoustic Back-Coupling in Human Phonation on a Synthetic Larynx Model

Näger,

Kniesburges,

Tur

et al. 2023

Bioengineering

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In the human phonation process, acoustic standing waves in the vocal tract can influence the fluid flow through the glottis as well as vocal fold oscillation. To investigate the amount of acoustic back-coupling, the supraglottal flow field has been recorded via high-speed particle image velocimetry (PIV) in a synthetic larynx model for several configurations with different vocal tract lengths. Based on the obtained velocity fields, acoustic source terms were computed. Additionally, the sound radiation into the far field was recorded via microphone measurements and the vocal fold oscillation via high-speed camera recordings. The PIV measurements revealed that near a vocal tract resonance frequency fR, the vocal fold oscillation frequency fo (and therefore also the flow field’s fundamental frequency) jumps onto fR. This is accompanied by a substantial relative increase in aeroacoustic sound generation efficiency. Furthermore, the measurements show that fo-fR-coupling increases vocal efficiency, signal-to-noise ratio, harmonics-to-noise ratio and cepstral peak prominence. At the same time, the glottal volume flow needed for stable vocal fold oscillation decreases strongly. All of this results in an improved voice quality and phonation efficiency so that a person phonating with fo-fR-coupling can phonate longer and with better voice quality.

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Section: Acoustic Radiationcontrasting

confidence: 45%

An Investigation of Acoustic Back-Coupling in Human Phonation on a Synthetic Larynx Model

Näger,

Kniesburges,

Tur

et al. 2023

Bioengineering

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Effect of Smoking on Cepstral Parameters

Wei,

Zhang,

et al. 2024

Journal of Voice

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Effects of a Concurrent Working Memory Task on Speech Acoustics in Parkinson's Disease

Dragicevic,

Dahl,

Perkins

et al. 2024

Am J Speech Lang Pathol

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Purpose: The purpose of this study was to determine the effect of a concurrent working memory task on acoustic measures of speech in individuals with Parkinson's disease (PD). Method: Individuals with PD and age- and sex-matched controls performed a speaking task with and without a Stroop-like concurrent working memory task. Cepstral peak prominence, low-to-high spectral energy ratio, fundamental frequency ( f o ) standard deviation, articulation rate, pause duration, articulatory–acoustic vowel space, relative f o , mean voice onset time (VOT), and VOT variability were calculated for each condition. Mixed-model analyses of variance were performed to determine the effects of group, condition (presence of the concurrent working memory task), and their interaction on the acoustic measures. Results: All measures except for VOT variability, mean pause duration, and relative f o offset differed between people with and without PD. Cepstral peak prominence, articulation rate, and relative f o offset differed as a function of condition. However, no measures indicated disparate effects of condition as a function of group. Conclusion: Although differentially impactful on limb motor function in PD, here a concurrent working memory task was not found to be differentially disruptive to speech acoustics in PD. Supplemental Material: https://doi.org/10.23641/asha.24759648

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Auditory-perceptual Parameters as Predictors of Voice Acoustic Measures

Cited by 3 publications

References 54 publications

An Investigation of Acoustic Back-Coupling in Human Phonation on a Synthetic Larynx Model

An Investigation of Acoustic Back-Coupling in Human Phonation on a Synthetic Larynx Model

Effect of Smoking on Cepstral Parameters

Effects of a Concurrent Working Memory Task on Speech Acoustics in Parkinson's Disease

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