scholarly journals Occurrence of vocal changes in preschoolers with no voice complaints: an auditory-perceptual and acoustic analysis

Revista CEFAC ◽  
2021 ◽  
Vol 23 (2) ◽  
Author(s):  
Gabriela Samanttha Cavalcanti do Nascimento ◽  
Giselle Frutuoso do Nascimento ◽  
Juliana Fernanda Dias da Silva ◽  
Sandro Júnior Henrique Lima ◽  
Zulina Souza de Lira ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Statistical Association ◽  
Acoustic Parameters ◽  
Significance Level ◽  
Perceptual Analysis ◽  
Perceptual Evaluation ◽  
Mild Degree ◽  
Voice Changes ◽  
Perceptual Assessment

ABSTRACT Purpose: to verify, with the auditory-perceptual and acoustic parameters, the occurrence of voice changes in children with no voice complaints, per sex. Methods: the registers of 36 children with no voice complaints, aged 6 to 8 years, of whom 19 were males, were assessed. The databank consisted of the recordings of sustained vowels, sentences, and spontaneous speech. The auditory-perceptual analysis was conducted with the Consensus Auditory-Perceptual Evaluation of Voice, and the acoustic analysis, with VoxMetria. The fundamental frequency, jitter, shimmer, noise, and glottal-to-noise excitation ratio were analyzed. The Mann-Whitney test was applied for numerical variables, and the McNemar test, for the categorical ones, at the p < 0.05 significance level. Results: of the 5 children with mild voice changes, 4 were males. The most frequent resonance deviation was the laryngopharyngeal one. There was no difference between the sexes in the auditory-perceptual findings. The fundamental frequency in the group with changes was lower than that in the group without changes. There was a statistical association between the changes in the auditory-perceptual assessment and the acoustic parameters. Conclusion: voice changes occurred in 13.89% of the studied sample of children with no voice complaints, without differences between the sexes in the auditory-perceptual parameters. Vocal deviations were in a mild degree in all children who had them, the most frequent ones being roughness and breathiness. The fundamental frequency and shimmer were the acoustic parameters whose values most often occurred outside the reference limits, in both genders.

scholarly journals Acoustic and hearing-perceptual voice analysis in individuals with idiopathic Parkinson's disease in "on" and "off" stages

2010 ◽  
Vol 68 (5) ◽  
pp. 706-711 ◽  
Author(s):  
Luiza Lara M Santos ◽  
Larissa Oliveira dos Reis ◽  
Iara Bassi ◽  
Clara Guzella ◽  
Francisco Cardoso ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Acoustic Analysis ◽  
Voice Quality ◽  
Control Group ◽  
Idiopathic Parkinson’S Disease ◽  
Acoustic Parameters ◽  
Perceptual Analysis ◽  
Idiopathic Parkinson's Disease ◽  
Vocal Quality

OBJECTIVE: To evaluate the voice quality of patients with idiopathic Parkinson's disease, at the "on" and "off" moments of the disease. METHOD: Five individuals with Parkinson's disease and five of the control group were assessed. All of them underwent the recording of voice and speech. The acoustic parameters analyzed were: fundamental frequency, jitter, shimmer, harmonic noise proportion and index of tremor, besides performing the hearing-perceptual analysis by means of GRBASI scale. The findings were analyzed using statistics through t test and the level of significance adopted was p<0.05. RESULTS: There was no difference in the acoustic parameters in the three analyzed groups. In the hearing-perceptual analysis, patients with idiopathic Parkinson's disease showed altered voice quality and the ones from the control group, neutral vocal quality. CONCLUSION: Patients with idiopathic Parkinson's disease present rough, breathy and unstable vocal quality in both stages. In the acoustic analysis, there are no differences in the studied parameters.

Radiophonosurgery of benign superficial vocal fold lesions

2005 ◽  
Vol 119 (12) ◽  
pp. 961-966 ◽  
Author(s):  
Sameh M Ragab ◽  
Mohamed N Elsheikh ◽  
Magdy E Saafan ◽  
Sayed G Elsherief
Keyword(s):  
Vocal Fold ◽  
Acoustic Analysis ◽  
Controlled Trial ◽  
Perceptual Evaluation ◽  
Prospective Randomized Controlled Trial ◽  
Significant Difference ◽  
Cold Knife ◽  
Vocal Nodules ◽  
Perceptual Assessment ◽  
Operative Recovery

Objective: To conduct a prospective randomized controlled trial describing and investigating the efficacy and safety of radiosurgical excision of benign superficial vocal fold lesions.Materials and methods: Fifty patients with benign superficial vocal fold lesions (20 vocal nodules, 27 vocal polyps and three Reinke’s oedema) who failed conservative therapy were included in the study. They were equally randomized into cold knife or radiosurgical excision. Clinical and voice assessments were done pre-operatively and after surgery. Voice analysis included a subjective visual analogue scale (VAS) and a perceptual assessment with a simplified version of the GRBAS scale (GRB) consisting of G (grade), R (roughness), and B (breathiness). Acoustic voice evaluation included jitter and shimmer. Post-operative voice therapy was provided for all patients. Complications, smoothness of post-operative recovery, and administration of analgesia were reported.Results: Both groups experienced significant improvement in VAS, perceptual evaluation and acoustic analysis after surgery, with no evidence of significant differences between the cold knife and radiofrequency groups. The radiofrequency group showed a decrease of 17 per cent in the mean operative time when compared with the cold knife group, but this was not statistically significant. No evidence of a significant difference was noticed in the smoothness of post-operative recovery, administration of analgesia and complication rate.Conclusion: Radiophonosurgery opens a new therapeutic approach for patients with benign superficial vocal fold lesions. It combines the advantages of both cold knife and laser phonosurgery, being easy, safe, precise and effective, and having excellent tactile and haemostatic properties.

Botulinum Toxin Injections for Essential Voice Tremor

2000 ◽  
Vol 109 (2) ◽  
pp. 204-209 ◽  
Author(s):  
Stellan Hertegård ◽  
Svante Granqvist ◽  
Per-Åke Lindestad
Keyword(s):  
Botulinum Toxin ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Connected Speech ◽  
Perceptual Evaluation ◽  
Subjective Evaluations ◽  
Subjective Judgments ◽  
Method Of Evaluation ◽  
Botulinum Toxin Injections ◽  
Frequency Variations

Fifteen patients, 13 women and 2 men, with a mean age of 72.7 years (56 to 86 years) and a clinical diagnosis of essential voice tremor, were treated with botulinum injections to the thyroarytenoid muscles, and in some cases, to the cricothyroid or thyrohyoid muscles. Evaluations were based on subjective judgments by the patients, and on perceptual and acoustic analysis of voice recordings. Subjective evaluations indicated that the treatment had a beneficial effect in 67% of the patients. Perceptual evaluations showed a significant decrease in voice tremor during connected speech (p < .05). Acoustic analysis showed a nearly significant decrease in the fundamental frequency variations (p = .06) and a significant decrease in fundamental frequency during sustained vowel phonation (p < .01). The results of perceptual evaluation coincided most closely with the subjective judgments. It was concluded that the treatment was successful in 50% to 65% of the patients, depending on the method of evaluation.

scholarly journals Pediatric voice-related quality of life and acoustic analysis of voice: a study in schoolchildren

Revista CEFAC ◽  
2021 ◽  
Vol 23 (4) ◽  
Author(s):  
Suelene Cibelle Silva dos Reis ◽  
Giselle Frutuoso Nascimento ◽  
Zulina Souza de Lira ◽  
Adriana de Oliveira Camargo Gomes
Keyword(s):  
Quality Of Life ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Positive Impact ◽  
The Self ◽  
Acoustic Parameters ◽  
Noise Rate ◽  
Related Quality ◽  
Research Population

ABSTRACT Purpose: to assess the self-reported voice-related quality of life of schoolchildren without voice complaints and correlate it to acoustic parameters of voice. Methods: the research population comprised 31 children, mean age 6.5 (±0.17) years. The children’s perception of their voice-related quality of life was verified with the Pediatric Voice-Related Quality of Life Survey, which has 10 closed-ended questions and three domains. The acoustic parameters assessed were fundamental frequency, jitter, shimmer, glottal-to-noise excitation ratio, and noise rate, besides the phonatory deviation diagram, based on the analysis of the emission of the sustained vowel /ɛ/ for 5 seconds. Results: all the children obtained scores close to 100% in the three domains of the Pediatric Voice-Related Quality of Life Survey. As for the acoustic parameters, most of them presented abnormal values in the phonatory deviation diagram and in shimmer. There was a difference between girls and boys only in fundamental frequency. Conclusion: the pediatric self-reported voice-related quality of life of the children studied had a positive impact, despite the acoustic changes found in the voices. There was no correlation between the pediatric voice-related quality of life and the acoustic parameters in voice in the group studied.

Acoustic analysis of tracheo-oesophageal versus oesophageal speech

1994 ◽  
Vol 108 (4) ◽  
pp. 325-328 ◽  
Author(s):  
F. Debruyne ◽  
P. Delaere ◽  
J. Wouters ◽  
P. Uwents
Keyword(s):  
Frequency Spectrum ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Respiratory Drive ◽  
Spectral Slope ◽  
Acoustic Parameters ◽  
Vocal Quality ◽  
Vibratory Pattern ◽  
The Voice

AbstractIn order to evaluate the vocal quality of tracheo-oesophageal and oesophageal speech, several objective acoustic parameters were measured in the acoustic waveform (fundamental frequency, waveform perturbation) and in the frequency spectrum (harmonic prominence, spectral slope). Twelve patients using tracheo-oesophageal speech (with the Provox® valve) and 12 patients using oesophageal speech for at least two months, participated.The main results were that tracheo-oesophageal voices more often showed a detectable fundamental frequency, and that this fundamental frequency was fairly stable; there was also a tendency to more clearly defined harmonics in tracheo-oesophageal speech. This suggests a more regular vibratory pattern in the pharyngo-oesophageal segment, due to the more efficient respiratory drive in tracheo-oesophageal speech. So, a better quality of the voice can be expected, in addition to the longer phonation time and higher maximal intensity.

Prosodic marking of narrow focus across varieties of South African English

2013 ◽  
Vol 34 (1) ◽  
pp. 26-47 ◽  
Author(s):  
Sabine Zerbian
Keyword(s):  
Second Language ◽  
South African ◽  
Fundamental Frequency ◽  
Information Structure ◽  
Acoustic Analysis ◽  
Noun Phrases ◽  
Acoustic Parameters ◽  
Phonetic Variation ◽  
Narrow Focus ◽  
Production Study

This paper reports on an elicited production study which investigates prosodic marking of narrow focus in modified noun phrases in varieties of South African English. The acoustic analysis of fundamental frequency, intensity, and duration in narrow focus is presented and discussed. The results suggest that these three acoustic parameters are manipulated differently in narrow focus in the varieties of English as a Second Language as compared to General South African English. The article compares the results to what is known about prosodic marking of information structure in other varieties of English as a Second Language and underlines the necessity of carefully controlled data in the investigation of phonological and phonetic variation in varieties of English.

scholarly journals Multidimensional voice assessment: the immediate effects of Lax Vox® in singers with voice complaints

Revista CEFAC ◽  
2021 ◽  
Vol 23 (2) ◽  
Author(s):  
Ruliano Santana da Matta ◽  
Marco Aurélio Rocha Santos ◽  
Elisa Meiti Ribeiro Lin Plec ◽  
Ana Cristina Côrtes Gama
Keyword(s):  
Fundamental Frequency ◽  
High Speed ◽  
Acoustic Analysis ◽  
Statistical Tests ◽  
Voice Analysis ◽  
Mean Values ◽  
Significance Level ◽  
Vocal Technique ◽  
Voice Assessment ◽  
Aerodynamic Parameters

ABSTRACT Purpose: to multidimensionally assess the effect of the Lax Vox® vocal technique on singers with voice complaints. Methods: a comparative intrasubject study that assessed 30 singers - 13 males and 17 females, aged 18 to 55 years - who self-reported voice complaints and had voice problems symptoms. The participants were submitted to voice assessment with perceptive-auditory, acoustic, aerodynamic, and electroglottographic voice analysis, as well as laryngeal assessment with high-speed videolaryngoscopy. The participants were assessed at two moments: 1) at the beginning of the data collection; and 2) five minutes after performing the Lax Vox® vocal technique. The groups were compared with appropriate statistical tests, with a 5% significance level. Results: in the acoustic analysis, there was an increase in the fundamental frequency for males, after using the Lax Vox® vocal technique. In the aerodynamic assessment, there was an increase in the airflow mean values during vocalization, as well as in aerodynamic power after using the Lax Vox® vocal technique in both groups. Conclusion: the Lax Vox® vocal technique, in the studied singers with a complaint of dysphonia, promoted an increase in the fundamental frequency, for males. In the aerodynamic parameters, in both sexes, it promoted an increase in the airflow and aerodynamic power.

scholarly journals An Analysis on Aerodynamic and Acoustic Changes After Thyroidectomy

2016 ◽  
Vol 101 (5-6) ◽  
pp. 233-240 ◽  
Author(s):  
Beyhan Yılmaz ◽  
Salih Bakır ◽  
Edip Erdal Yılmaz ◽  
Engin Şengül ◽  
Ömer Uslukaya ◽  
...  
Keyword(s):  
Fundamental Frequency ◽  
Malignant Tumors ◽  
Laryngeal Nerve ◽  
Benign Tumors ◽  
Acoustic Parameters ◽  
Tumor Patients ◽  
Maximum Phonation Time ◽  
Voice Changes ◽  
Laryngeal Nerve Injury ◽  
The Voice

The purpose of this study was to investigate the aerodynamic and acoustic changes after thyroidectomy without laryngeal nerve injury by using objective methods. Voice samples of sustained /α/ recorded from 44 adults preoperatively and nearly 1 week and 3 months after thyroidectomy were analyzed for mean vocal fundamental frequency (Mean Fo, Hz), maximum fundamental frequency (Max Fo, Hz), minimum fundamental frequency (Min Fo, Hz), jitter, shimmer, glottal to noise excitation ratio (GNE), irregularity, noise, overall severity, S time, Z time, S/Z ratio, and maximum phonation time (MPT). Voice samples were analyzed using the lingWAVES software. The comparisons of preoperative and early and late postoperative acoustic parameters revealed significant differences in Mean F0, Max F0, MPT, and S Time between the early and late postoperative periods. The voice changes after thyroidectomy were not affected by age, sex, or surgical procedure, but they differed between the benign and malignant nature of the tumor. Patients with malignant tumors showed a greater decrease in Mean F0 and Max F0 compared with the patients with benign tumors, and this difference was statistically significant. Voice changes may occur after thyroidectomy even in the patients with no evidence of laryngeal nerve damage, and these changes can be assessed with objective measurement methods. This information should be explained to the patients during the preoperative counseling, and proper informed consent is ethically and legally required for all planned thyroidectomies.

scholarly journals Acoustic analysis of voice in children with cochlear implants

2014 ◽  
Vol 67 (suppl. 1) ◽  
pp. 32-37 ◽  
Author(s):  
Maja Miljkovic ◽  
Mila Veselinovic ◽  
Ivana Sokolovac ◽  
Dragan Dankuc ◽  
Zoran Komazec ◽  
...  
Keyword(s):  
Cochlear Implants ◽  
Fundamental Frequency ◽  
Acoustic Analysis ◽  
Signal To Noise Ratio ◽  
Normal Hearing ◽  
Speech Development ◽  
Voice Pitch ◽  
Acoustic Parameters ◽  
Noise Ratio ◽  
Hearing Children

Introduction. The focus of this study was the analysis of objective acoustic characteristics of voice in children with cochlear implants. The objective of this study was to compare acoustic parameters of voice in children with cochlear implants and normal hearing children of the same age, and to determine differences, if there were any. Material and Methods. There were 60 children (aged from 6 to 13) included in this prospective study. They were divided into 2 groups: children with cochlear implants (30) and normal hearing children with normal speech development (30). The most stable voice sample was analyzed using a software program Dr Speech: Vocal Assessment. Objective acoustic analysis of voice included 13 acoustic parameters. Results. Standard deviation of fundamental frequency was significantly (p=0.000) higher in children with cochlear implants, as well as the values of harmonic to noise ratio (p=0.003) and signal to noise ratio (p=0.000) parameters. Values of jitter %, shimmer %, normalized noise energy, fundamental frequency tremor and amplitude tremor showed no significant differences between the two groups. However, the values of parameters that refer to voice frequency (habitual fundamental frequency, mean fundamental frequency, min fundamental frequency and max fundamental frequency) and the mean value of voice intensity (p=0.004), were significantly higher in the boys and the girls with cochlear implants than in the normal hearing children. Conclusion. Gender non-related parameters of hoarseness did not show significant differences between the children with cochlear implants and the normal hearing children; the results of cochlear implantation and voice and speech education were therefore positive. However, the children with cochlear implants of both gender showed significantly higher values of voice intensity, voice pitch and insufficient control of voice pitch variation.

scholarly journals Vocal and self-perception effects of straw phonation exercises

Revista CEFAC ◽  
2021 ◽  
Vol 23 (6) ◽  
Author(s):  
Larissa Rezende da Paixão ◽  
Márcia Cristina Bebiano Tannes ◽  
Bárbara Oliveira Souza ◽  
Lorena Luiza Costa Rosa Nogueira ◽  
Renata Maria Moreira Moraes Furlan
Keyword(s):  
Acoustic Analysis ◽  
Frequency Noise ◽  
Self Perception ◽  
Analog Scale ◽  
Significance Level ◽  
Maximum Phonation Time ◽  
Voice Changes ◽  
Before And After ◽  
The One ◽  
Voice Symptoms

ABSTRACT Purpose: to assess the acoustic and self-perceived voice changes in women with and without voice symptoms after 1, 3, 5, and 7 minutes of straw phonation exercises. Methods: a total of 30 women aged 18 to 39 years participated in the study - 17 with and 13 without voice symptoms. The participants filled in the visual analog scale on self-perceived voice discomfort. The sustained vowel /ɛ/ was recorded in maximum phonation time before (m0) and after the first, third, fifth, and seventh minute performing straw phonation exercises. The maximum phonation time was measured, and an acoustic analysis was made, encompassing the following parameters: the number of harmonics, fundamental frequency, noise, glottal-to-noise excitation ratio (GNE), jitter, and shimmer. The Friedman and Wilcoxon tests were used to compare each parameter at the different moments, and the Mann-Whitney test, to compare the groups. The 5% significance level was set for the analyses. Results: no changes were found in either the acoustic variables or the self-perception of voice comparing the moments before and after the exercises in either group. The comparison between the groups revealed that the one with voice symptoms had lower GNE and higher noise values at the second moment performing the technique. Conclusion: the straw phonation did not cause acoustic or self-perceived voice changes in women with and without voice symptoms. The comparison between the groups showed that the women with symptoms had lower GNE and higher noise values than those without symptoms, after 1 minute performing straw phonation.

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