Differentiated electroglottograph and audio signal measurements of vocal fold closed quotient during a register change: Single note data

2015 ◽  
Vol 137 (4) ◽  
pp. 2405-2405 ◽  
Author(s):  
Richard J. Morris ◽  
David Okerlund ◽  
Shonda Bernadin
Keyword(s):  
Vocal Fold ◽  
Audio Signal ◽  
Closed Quotient

Combining differentiated electroglottograph and differentiated audio signals to reliably measure vocal fold closed quotient

2014 ◽  
Vol 136 (4) ◽  
pp. 2293-2293
Author(s):  
Richard J. Morris ◽  
Shonda Bernadin ◽  
David Okerlund ◽  
Lindsay B. Wright
Keyword(s):  
Vocal Fold ◽  
Audio Signals ◽  
Closed Quotient

Correspondence of electroglottographic closed quotient to vocal fold impact stress in excised canine larynges

1998 ◽  
Vol 12 (4) ◽  
pp. 415-423 ◽  
Author(s):  
Katherine Verdolini ◽  
Roger Chan ◽  
Ingo R. Titze ◽  
Markus Hess ◽  
Wolfgang Bierhals
Keyword(s):  
Vocal Fold ◽  
Impact Stress ◽  
Closed Quotient

Assessment of Tongue Position and Laryngeal Height in Two Professional Voice Populations

2020 ◽  
Vol 63 (1) ◽  
pp. 109-124
Author(s):  
Carly Jo Hosbach-Cannon ◽  
Soren Y. Lowell ◽  
Raymond H. Colton ◽  
Richard T. Kelley ◽  
Xue Bao
Keyword(s):  
Vocal Fold ◽  
Vocal Tract ◽  
Current Knowledge ◽  
Acoustic Resonance ◽  
Contact Dynamics ◽  
Voice Disorder ◽  
Music Program ◽  
Tongue Position ◽  
Singer Groups ◽  
Professional Voice

Purpose To advance our current knowledge of singer physiology by using ultrasonography in combination with acoustic measures to compare physiological differences between musical theater (MT) and opera (OP) singers under controlled phonation conditions. Primary objectives addressed in this study were (a) to determine if differences in hyolaryngeal and vocal fold contact dynamics occur between two professional voice populations (MT and OP) during singing tasks and (b) to determine if differences occur between MT and OP singers in oral configuration and associated acoustic resonance during singing tasks. Method Twenty-one singers (10 MT and 11 OP) were included. All participants were currently enrolled in a music program. Experimental procedures consisted of sustained phonation on the vowels /i/ and /ɑ/ during both a low-pitch task and a high-pitch task. Measures of hyolaryngeal elevation, tongue height, and tongue advancement were assessed using ultrasonography. Vocal fold contact dynamics were measured using electroglottography. Simultaneous acoustic recordings were obtained during all ultrasonography procedures for analysis of the first two formant frequencies. Results Significant oral configuration differences, reflected by measures of tongue height and tongue advancement, were seen between groups. Measures of acoustic resonance also showed significant differences between groups during specific tasks. Both singer groups significantly raised their hyoid position when singing high-pitched vowels, but hyoid elevation was not statistically different between groups. Likewise, vocal fold contact dynamics did not significantly differentiate the two singer groups. Conclusions These findings suggest that, under controlled phonation conditions, MT singers alter their oral configuration and achieve differing resultant formants as compared with OP singers. Because singers are at a high risk of developing a voice disorder, understanding how these two groups of singers adjust their vocal tract configuration during their specific singing genre may help to identify risky vocal behavior and provide a basis for prevention of voice disorders.

Update: Behavioral Management of Unilateral Vocal Fold Paralysis and Paresis

2019 ◽  
Vol 4 (3) ◽  
pp. 474-482
Author(s):  
Sarah L. Schneider
Keyword(s):  
Vocal Fold ◽  
Treatment Plan ◽  
Traumatic Injury ◽  
Voice Therapy ◽  
Valuable Insight ◽  
Behavioral Management ◽  
Use Patterns ◽  
Vocal Quality ◽  
And Function ◽  
Voice Use

PurposeVocal fold motion impairment (VFMI) can be the result of iatrogenic or traumatic injury or may be idiopathic in nature. It can result in glottic incompetence leading to changes in vocal quality and ease. Associated voice complaints may include breathiness, roughness, diplophonia, reduced vocal intensity, feeling out of breath with talking, and vocal fatigue with voice use. A comprehensive interprofessional voice evaluation includes auditory-perceptual voice evaluation, laryngeal examination including videostroboscopy, acoustic and aerodynamic voice measures. These components provide valuable insight into laryngeal structure and function and individual voice use patterns and, in conjunction with stimulability testing, help identify candidacy for voice therapy and choice of therapeutic techniques.ConclusionA comprehensive, interprofessional evaluation of patients with VFMI is necessary to assess the role of voice therapy and develop a treatment plan. Although there is no efficacy data to support specific voice therapy techniques for treating VFMI, considerations for various techniques are provided.

Pediatric Benign Vocal Fold Lesions: A Team Approach

2009 ◽  
Vol 19 (3) ◽  
pp. 105-112 ◽  
Author(s):  
Geralyn Harvey Woodnorth ◽  
Roger C. Nuss
Keyword(s):  
Vocal Fold ◽  
Evaluation Process ◽  
Team Approach ◽  
Speech Language Pathologist ◽  
Benign Vocal Fold Lesions ◽  
Different Types ◽  
Team Evaluation ◽  
Surgical Treatments ◽  
Review Current ◽  
Vocal Fold Nodules

Abstract Many children with dysphonia present with benign vocal fold lesions, including bilateral vocal fold nodules, cysts, vocal fold varices, and scarring. Evaluation and treatment of these children are best undertaken in a thoughtful and coordinated manner involving both the speech-language pathologist and the otolaryngologist. The goals of this article are (a) to describe the team evaluation process based on a “whole system” approach; (b) to discuss etiological factors and diagnosis; and (c) to review current medical, behavioral, and surgical treatments for children with different types of dysphonia.

Visco-elastic changes of vocal fold mucosa related to high and low relative air humidity

2000 ◽  
Vol 25 (4) ◽  
pp. 329-330
Author(s):  
R.J.B. Hemler ◽  
G.H. Wieneke ◽  
P.H. Dejonckere
Keyword(s):  
Vocal Fold ◽  
Air Humidity ◽  
Relative Air Humidity

Tissue Stem Cells and Stem Cell Niche of the Human Vocal Fold

2020 ◽  
Vol 71 (2) ◽  
pp. 211-213
Author(s):  
K. Sato ◽  
S. Chitose ◽  
K. Sato ◽  
F. Sato ◽  
T. Kurita ◽  
...  
Keyword(s):  
Stem Cells ◽  
Stem Cell ◽  
Stem Cell Niche ◽  
Vocal Fold ◽  
Cell Niche
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