Humans ; Voice Disorders ; diagnosis ; Voice Quality

Humans ; Voice Disorders ; diagnosis ; pathology ; Voice Quality

Nowadays, various voice disorders are sprung out towards teachers of primary and secondary school, affecting their personal life and social work. Through literature review, the author aims at clearing up series of assessments and methods of voice training which are suitable for the teachers of primary and secondary school, such as establishing a right way of respiratory, phonation and resonance, avoiding occupational risk factors such as vocal abuse or misuse to regain healthy voice. Review of the several relevant literature and commentary about voice disorders of the teachers in primary and secondary school. Although various methods of voice training were reported from time to time to guide us SLP to carry out voice therapy, however, deviations of the clinical data from scholars' different points of view are waiting for our further support through case-control study.
Faculty ; Humans ; Schools ; Voice Disorders ; diagnosis ; rehabilitation

Objective:To determine the effectiveness of individualized voice therapy in persistent pediatric voice disorders. Methods:Thirty-eight children who were admitted to the Department of Pediatric Otolaryngology Shenzhen Hospital, Southern Medical University due to persistent voice disorder from November 2021 to October 2022 were included. All children were evaluated by dynamic laryngoscopy before voice therapy. Two voice doctors performed GRBAS score and acoustic analysis on the children's voice samples to obtain the relevant parameters including F0, Jitter, Shimmer, and MPT; All children were given personalized voice therapy for 8 weeks. Results:Among 38 children with voice disorders, 75.8%（29 cases） were diagnosed with vocal nodules, 20.6%（8 cases） were vocal polyps, and 3.4%（1 case） were vocal cysts. And in all children. And 51.7%（20 cases） had the sign of supraglottic extrusion under dynamic laryngoscopy. GRBAS scores decreased from 1.93 ± 0.62, 1.82 ± 0.55, 0.98 ± 0.54, 0.65 ± 0.48, 1.05 ± 0.52 to 0.62 ± 0.60, 0.58 ± 0.53, 0.32 ± 0.40, 0.22 ± 0.36, 0.37 ± 0.36. F0, Jitter, Shimmer decreased from（243.11±39.73） Hz, （0.85±0.99）%, （9.96±3.78）% to（225.43±43.20） Hz, （0.33±0.57）%, （7.72±4.32）%, respectively MPT was prolonged from（5.82±2.30） s to（7.87±3.21） s after treatment. All parameters changes had statistical significance. Conclusion:Voice therapy can solve children's voice problems, improve their voice quality and effectively treat children's voice disorders.
Humans ; Child ; Voice Disorders/diagnosis* ; Voice ; Voice Quality ; Acoustics ; Speech Acoustics ; Vocal Cords/surgery*

OBJECTIVETo investigate the reliability of RBH perceptual evaluation system, and the correlation between its perceptual and acoustic parameters inorder to providing the evidence for clinic practice.

METHODSThe voice samples were collected from 100 patients with variable dysphonia and 15 normal people. According to the R, B, H parameters of the RBH system,voice samples were rated on 4-point scale from 0 to 3. The interrater agreement and intrarater reliability were tested. The differences of the acoustic parameters between adjacent ranks in the perceptual parameters were investigated. The correlation between perceptual parameters and acoustic parameters were also studied.

RESULTSThe interrater agreement and intrarater reliability were good. Intrarater reliability was varying from 0.428 to 0.608 using Kappa coefficient; intraclass correlation coefficients for interrater agreement were 0.741-0.797 and 0.689-0.762 in the twice perceptual assessments. The differences of the acoustic parameters between adjacent ranks in the perceptual parameters (R, B, H) were significant (P < 0.05). The perceptual parameters (R, B, H) were significantly correlated with the acoustic parameters (Jitter, Shimmer, HNR, MPT and DSI, with r varying from 0.360 to 0.551 or from -0.472 to -0.620, P < 0.01).

CONCLUSIONThe reliability of RBH perceptual evaluation system is good; its 4-point scale is acceptable; the perceptual parameters are correlated with the acoustic parameters; the RBH system has broad prospects in clinic practice.

Vocal fatigue（VF） is the common clinical symptom of voice diseases. It can also be a separate symptom and is considered to be a signal for the body to rest and to avoid pathological damage to the vocal cords. Therefore, the early identification and evaluation of vocal fatigue is of great value to the early prevention and treatment of vocal diseases. In recent years, there are many researches on the evaluation methods of vocalization fatigue. We searched the relevant literature and summarized the application status of vocal fatigue assessment methods, in order to provide reference for the selection and development of vocal fatigue assessment tools in clinical practice.
Humans ; Voice Quality ; Voice Disorders/diagnosis* ; Vocal Cords ; Surveys and Questionnaires ; Dysphonia/diagnosis*

BACKGROUND AND OBJECTIVES: Adductor type spasmodic dysphonia (ADSD) is neurogenic disorder and focal laryngeal dystonia, while muscle tension dysphonia (MTD) is caused by functional voice disorder. Both ADSD and MTD may be associated with excessive supraglottic contraction and compensation, resulting in a strained voice quality with spastic voice breaks. The aim of this study was to determine the utility of spectrogram analysis in the differentiation of ADSD from MTD. MATERIALS AND METHODS: From 2015 through 2017, 17 patients of ADSD and 20 of MTD, underwent acoustic recording and phonatory function studies, were enrolled. Jitter (frequency perturbation), Shimmer (amplitude perturbation) were obtained using MDVP (Multi-dimensional Voice Program) and GRBAS scale was used for perceptual evaluation. The two speech therapist evaluated a wide band (11,250 Hz) spectrogram by blind test using 4 scales (0–3 point) for four spectral findings, abrupt voice breaks, irregular wide spaced vertical striations, well defined formants and high frequency spectral noise. RESULTS: Jitter, Shimmer and GRBAS were not found different between two groups with no significant correlation (p>0.05). Abrupt voice breaks and irregular wide spaced vertical striations of ADSD were significantly higher than those of MTD with strong correlation (p < 0.01). High frequency spectral noise of MTD were higher than those of ADSD with strong correlation (p < 0.01). Well defined formants were not found different between two groups. CONCLUSION: The wide band spectrograms provided visual perceptual information can differentiate ADSD from MTD. Spectrogram analysis is a useful diagnostic tool for differentiating ADSD from MTD where perceptual analysis and clinical evaluation alone are insufficient.
Acoustics ; Compensation and Redress ; Diagnosis, Differential ; Dysphonia* ; Dystonia ; Humans ; Muscle Spasticity ; Muscle Tonus* ; Noise ; Voice ; Voice Disorders ; Voice Quality ; Weights and Measures

BACKGROUND AND OBJECTIVES: Adduct spasmodic dysphonia (ADSD) is a neurogenic and focal laryngeal dystonia resulting in a strained voice quality with spastic voice breaks. While muscle tension dysphonia (MTD) is caused by functional voice disorders, its symptoms are similar to those of ADSD. Because the approaches of treatment for ADSD and MTD are radically different, accurate evaluations are necessary for precise diagnosis. A spectrogram analysis for differentiating ADSD from MTD provides differentiations on four spectral findings (abrupt voice breaks, irregular wide-spaced vertical striations, well-defined formants and high-frequency spectral noise). The aim of this study was to evaluate if the spectrogram could provide detailed information on the visual characteristics that distinguish ADSD and MTD. SUBJECTS AND METHOD: 11 female patients of ADSD and 13 female patients of MTD who were diagnosed by laryngoscope and stroboscope from 2009 through 2012 were selected for this study. The speech samples of subjects were obtained using Computerized Speech Lab. The two speech therapists evaluated a wide-band (300 Hz) spectrogram by blind test using 4 scales (0-3 point) for four spectral findings. RESULTS: Abrupt voice breaks and irregular wide-spaced vertical striations of ADSD were significantly higher than those of MTD. Well-defined formants and high-frequency spectral noise were not found significantly different between two groups. CONCLUSION: The spectrograms provided visual perceptual information needed to differentiate ADSD from MTD. Voice therapy to reduce hypertension could be considered for patients of ADSD with excessive formants and noise. If spectrogram analysis were used along with other assessments, it would be more useful in distinguishing ADSD from MTD.
Diagnosis ; Dysphonia* ; Dystonia ; Female ; Humans ; Hypertension ; Laryngoscopes ; Muscle Spasticity ; Muscle Tonus* ; Noise ; Voice ; Voice Disorders ; Voice Quality ; Weights and Measures

OBJECTIVETo design a speech voice sample text with all phonemes in Mandarin for subjective auditory perceptual evaluation of voice disorders.

METHODSThe principles for design of a speech voice sample text are: The short text should include the 21 initials and 39 finals, this may cover all the phonemes in Mandarin. Also, the short text should have some meanings.

RESULTSA short text was made out. It had 155 Chinese words, and included 21 initials and 38 finals (the final, ê, was not included because it was rarely used in Mandarin). Also, the text covered 17 light tones and one "Erhua". The constituent ratios of the initials and finals presented in this short text were statistically similar as those in Mandarin according to the method of similarity of the sample and population (r = 0.742, P < 0.001 and r = 0.844, P < 0.001, respectively). The constituent ratios of the tones presented in this short text were statistically not similar as those in Mandarin (r = 0.731, P > 0.05).

CONCLUSIONSA speech voice sample text with all phonemes in Mandarin was made out. The constituent ratios of the initials and finals presented in this short text are similar as those in Mandarin. Its value for subjective auditory perceptual evaluation of voice disorders need further study.

In some specific measurement, observations, and analyses of certain aspects of the voice and voice production used in phoniatrics, signs of various laryngeal disorders were identified, indicating that these tools can be used as aids in the diagnosis of laryngeal disorders.
Adolescent ; Adult ; Aged ; Child ; Diagnosis, Differential ; Human ; Laryngeal Diseases/diagnosis* ; Middle Age ; Voice Disorders/diagnosis*