Acoustic characteristics of phonation in “wet voice” conditions

Murugappan, Shanmugam; Boyce, Suzanne; Khosla, Sid; Kelchner, Lisa; Gutmark, Ephraim

doi:10.1121/1.3308478

Cited by 29 publications

(14 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…표 6. 청년층의 중기 2초 구간 삼킴 전후 비교 -Wright, 2007;Murugappan et al, 2010;Ryu et al, 2004) , 1997;Humbert & Robbins, 2008;Linville, 1995;Nagai et al, 2005;Onofri et al, 2014;Pontes et al, 2005;Robbins et al, 1992;Schötz, 2007;Yamamoto et al, 2003).…”

Section: Variables Swallowingunclassified

Voice quality of normal elderly people after a 3oz water-swallow test: An acoustic analysis

Lee¹,

Choi²,

Choi³

et al. 2018

Phonetics Speech Sci.

View full text Add to dashboard Cite

The elderly are at increased risk of developing dysphagia due to aging and illnesses. The aim of the current study was to analyze, via an acoustic study, the change in the voice quality of normal elderly people after a 3oz water-swallow test. Subjects included a group of 60 normal elderly people (age: mean±SD=76.9±6.66) and 60 healthy young adults (age: mean±SD=25.1±2.36). Every participant produced a five-second /a/ phonation pre-and post-swallowing, and the fractioned two-second sections were analyzed using the MDVP (multi dimensional voice program) analysis. The elderly group demonstrated a post-swallowing increase in the following related acoustic parameters: fundamental frequency, fundamental frequency variation, amplitude-variation, and noise in both two-second sections. However, the younger group showed an increase only in frequency related acoustic parameters (i.e., STD) in the first two-second section. The significant changes in values in the post-swallowing parameters might indicate temporary irregularities in pitch and amplitude along with higher amounts of noise in the voice. The results could be attributed to water residues in the vocal fold and vocal tract, as well as a deterioration of the motor and sensory functions caused by anatomical and physiological changes that result from aging.

show abstract

Section: Variables Swallowingunclassified

Voice quality of normal elderly people after a 3oz water-swallow test: An acoustic analysis

Lee¹,

Choi²,

Choi³

et al. 2018

Phonetics Speech Sci.

View full text Add to dashboard Cite

show abstract

“…[99], using excised porcine larynges, investigated the acoustic characteristics of phonation when liquid material is present on the vocal folds. The presence of liquid on the folds during phonation was generally found to suppress the higher frequency harmonics and generate intermittent additional frequencies in the low and high end of the acoustic spectrum.…”

Section: Excised Human and Animal Larynx Experimentsmentioning

confidence: 99%

Experiments on Analysing Voice Production: Excised (Human, Animal) and In Vivo (Animal) Approaches

Döllinger¹,

Kobler²,

Berry³

et al. 2011

CBIO

View full text Add to dashboard Cite

Experiments on human and on animal excised specimens as well as in vivo animal preparations are so far the most realistic approaches to simulate the in vivo process of human phonation. These experiments do not have the disadvantage of limited space within the neck and enable studies of the actual organ necessary for phonation, i.e., the larynx. The studies additionally allow the analysis of flow, vocal fold dynamics, and resulting acoustics in relation to well-defined laryngeal alterations. Purpose of Review This paper provides an overview of the applications and usefulness of excised (human/animal) specimen and in vivo animal experiments in voice research. These experiments have enabled visualization and analysis of dehydration effects, vocal fold scarring, bifurcation and chaotic vibrations, three-dimensional vibrations, aerodynamic effects, and mucosal wave propagation along the medial surface. Quantitative data will be shown to give an overview of measured laryngeal parameter values. As yet, a full understanding of all existing interactions in voice production has not been achieved, and thus, where possible, we try to indicate areas needing further study. Recent Findings A further motivation behind this review is to highlight recent findings and technologies related to the study of vocal fold dynamics and its applications. For example, studies of interactions between vocal tract airflow and generation of acoustics have recently shown that airflow superior to the glottis is governed by not only vocal fold dynamics but also by subglottal and supraglottal structures. In addition, promising new methods to investigate kinematics and dynamics have been reported recently, including dynamic optical coherence tomography, X-ray stroboscopy and three-dimensional reconstruction with laser projection systems. Finally, we touch on the relevance of vocal fold dynamics to clinical laryngology and to clinically-oriented research.

show abstract

“…이것은 방사능 피폭, 고비용 장비 필요, 병원 환경 밖에서 의 제한된 접근, 짧은 검사시간으로 장시간에 걸친 기능적 섭 식 능력 미반영, 영상자료의 해석 오류, 7) 침상검사의 불가능 6) 등의 단점이 있다. 삼킴장애 발생 시 쉰 목소리(hoarse vocal quality)를 동반한 젖은 목소리(wet voice, gurgle voice)가 관찰되며 [8][9][10] 흡인 환 자의 90%가 젖은 목소리를 보일 정도로 그 빈도는 높다. 5 F0: average fundamental frequency (Hz), mF0: mean fundamental frequency (Hz), T0: average pitch period (ms), Fhi: highest fundamental frequency (Hz), Flo: lowest fundamental frequency (Hz), SD: standard deviation of F0 (Hz), PFR: phonatory F0-range in semi-tones, Tsam: length of analyzed sample (s), SEG: number of segments computed, PER: total number detected pitch periods, Jita: absolute Jitter (μs), Jitt: jitter percent (%), RAP: relative average perturbation (%), PPQ: pitch perturbation quotient (%), sPPQ: smoothed pitch perturbation quotient (%), vF0: fundamental frequency variation (%), ShdB: shimmer in dB (dB), Shim: shimmer percent (%), APQ: amplitude perturbation quotient (%), sAPQ: smoothed Amplitude perturbation quotient (%), vAm: peakto-peak amplitude (%), NHR: noise to harmonic ratio, VTI: Voice Turbulence Index, SPI: Soft Phonation Index, F1: first formant (Hz),…”

unclassified

Acoustic Voice Analysis in Patients with Penetration/Aspiration Via Videofluoroscopic Swallowing Study

Kang¹,

Jee²,

Koo³

2017

Korean J Otorhinolaryngol-Head Neck Surg

View full text Add to dashboard Cite

Background and ObjectivesZZThe present study aimed to investigate the effects of penetration/aspiration (P/A) on voice acoustic parameters. Subjects and MethodZZTwenty-seven patients were analyzed with the videofluoroscopic swallowing study (VFSS) and then divided into two groups based on the modified Penetration and Aspiration Scale results. Ten patients (5 males and 5 females) were included in the Non-P/A group, and 17 patients (12 males and 5 females) in the P/A group. Stroke was the major cause of swallowing disorders. Three sustained /a/ vowels recorded in pre-and post-VFSS were analyzed. Mann-Whitney U-test was used to compare acoustic values before and after VFSS, and the receiver operating characteristics (ROC) curve with combination of significant parameters was also conducted. ResultsZZAmong acoustic parameters, the length of analyzed sample (p=0.010), number of segments computed (p=0.018), total number detected pitch periods (p=0.017), and second formant (p=0.013) in pre-and post-VFSS were significantly different between Non-P/A and P/A groups. In the P/A group after VFSS, the means of these significant parameters decreased. According to ROC combined with four significant parameters, the probability of predicting P/A condition was 84% (p=0.005), the sensitivity was 80%, and the specificity was 80%. ConclusionZZVoice acoustic analysis can reflect voice changes by penetration/aspiration and the combination of significant parameters can also detect swallowing disorders. Therefore, voice analysis can be a reliable screening tool for patients with swallowing disorders.

show abstract

Acoustic characteristics of phonation in “wet voice” conditions

Cited by 29 publications

References 47 publications

Voice quality of normal elderly people after a 3oz water-swallow test: An acoustic analysis

Voice quality of normal elderly people after a 3oz water-swallow test: An acoustic analysis

Experiments on Analysing Voice Production: Excised (Human, Animal) and In Vivo (Animal) Approaches

Acoustic Voice Analysis in Patients with Penetration/Aspiration Via Videofluoroscopic Swallowing Study

Contact Info

Product

Resources

About