Navegando por Palavras-chave "Voice quality"

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    Acoustic and Long-Term Average Spectrum Measures to Detect Vocal Aging in Women
    (Elsevier B.V., 2011-07-01) Silva, Paula Torres da [UNIFESP]; Master, Suely; Andreoni, Solange [UNIFESP]; Pontes, Paulo [UNIFESP]; Ramos, Luiz R. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Univ Estadual São Paulo
    Along the normal aging process, voice tends to become weak, breathy, and loses projection, which may interfere in the communication process. One reliable way to evaluate voice quality is through acoustical analysis using, for instance, the long-term average spectrum (LTAS). the aim of this study was to identify acoustic measures, particularly LTAS's, which characterize vocal aging in women without vocal complaints. for this purpose, 30 elderly and 30 young women were included in this study. All spoke standard Portuguese and none had a history of vocal and laryngeal alterations or respiratory diseases. On the basis of the reading task, in habitual and loud levels, the following parameters were assessed: the equivalent sound level (L-eq), the speaking fundamental frequency (SFF) and, at the LTAS window, the difference between the levels of the regions of the first formant and fundamental frequency F-0 (L-1 - L-0), alpha ratio, and the amplitude levels obtained at equal intervals of 160 Hz, ranging from 0 to 8 kHz. There were significant differences between young and old voices for SFF and Leg in both levels. in the LTAS window, amplitude levels were higher for young voices, comprising all frequencies except those in the regions between 4.6-6.7 and 4.8-6.5 kHz, in habitual and loud levels, respectively. There were also significant differences regarding L-1 - L-0 and alpha ratio between groups, in both levels. the observed differences in LTAS's slopes, L-1 - L-0 measures, and even L-eq and SFF measures, may be attributed, to some extent, to lower subglottal pressure or a glottal setting providing a slower glottal closing speed for the elderly group.
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    Comparação entre as análises auditiva e acústica nas disartrias
    (Sociedade Brasileira de Fonoaudiologia, 2008-01-01) Ortiz, Karin Zazo [UNIFESP]; Carrillo, Luciane; Universidade Federal de São Paulo (UNIFESP); Centro de Estudos da Voz; San Jose State University Communication Studies Department
    PURPOSE: To compare data found in auditory-perceptual analyses (subjective) and acoustic analyses (objective) in dysarthric patients. METHODS: Forty-two patients with well defined neurological diagnosis, 21 male and 21 female, were evaluated in auditory-perceptual parameters and acoustic measures. All patients had their voices recorded. Auditory-perceptual voice analyses were made considering type of voice, resonance (balanced, hipernasal or laryngopharyngeal), loudness (adequate, decreased or increased), pitch (adequate, low or high), vocal attack (isochronic, sudden or breathy), and voice stability (stable or unstable). Acoustic analyses were made with GRAM 5.1.7 Program that considered voice quality and spectrographic tracing, and Vox Metria Program to obtain objective measures. RESULTS: The comparison between auditory-perceptual and acoustic data showed no correlation for all the parameters analyzed. It was found a significant difference between breathiness and shimmer alteration (p=0.048), and between breathiness and harmonics definition (p=0.040), evidencing correlation between noise presence during emission and breathiness. CONCLUSION: Acoustic analysis associated to auditory-perceptual analysis provided different but complementary data, helping the clinical diagnosis of dysarthias.
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    Comportamento vocal de teleoperadores pré e pós-jornada de trabalho
    (Sociedade Brasileira de Fonoaudiologia, 2011-01-01) Amorim, Geová Oliveira de [UNIFESP]; Bommarito, Silvana [UNIFESP]; Kanashiro, Célia Akemi; Chiari, Brasilia Maria [UNIFESP]; Universidade Estadual de Ciências da Saúde de Alagoas; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To evaluate the vocal behavior of receptive telemarketing operators in pre- and post-work shift moments, and to relate the results to the variable gender. METHODS: Participants were 55 telemarketing operators (11 men and 44 women) working in a receptive mode in the city of Maceió (Alagoas, Brazil). A questionnaire was applied before the work shift to initially identify the vocal complaints. After that, vocal samples were recorded, comprising sustained emissions and connected speech produced 10 minutes before and 10 minutes after the workday to be later evaluated. Auditory-perceptual and acoustic analyses of voice were conducted. RESULTS: Vocal complaints and symptoms reported by the operators after the work shift were: dry throat (64%); neck and cervix pain (33%); hoarseness (31%); voice failure (26%); and vocal fatigue (22%).Telemarketing operators presented reduced maximum phonation time before and after the day of work (p=0.645). Data from the auditory-perceptual assessment of voice were similar in pre- and post-shift moments (p=0.645). No difference was found between moments also on acoustic analysis data (p=0.738). CONCLUSION: Telemarketing operators have high indexes of vocal symptoms after the work shift, and there are no differences between pre- and post-work shift in auditory-perceptual and acoustic assessments of voice.
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    Considerações teóricas sobre a relação entre respiração oral e disfonia
    (Sociedade Brasileira de Fonoaudiologia, 2008-01-01) Tavares, Juliana Gomes; Silva, Érika Henriques de Araújo Alves da [UNIFESP]; Faculdade Integrada do Recife; Universidade Federal de São Paulo (UNIFESP); Universidade Estadual de Ciências da Saúde de Alagoas
    It is known that mouth breathing can lead to several bone, postural, muscular and functional alterations, and also changes on vocal quality and/or vocal behavior. These alterations can compromise oral communication, in which the voice cannot perform its basic role on the transmission of an individual's verbal and emotional message. Individuals with mouth breathing can present hiper or hiponasal resonance, changes on voicing features and hoarseness. From researches on LILACS and SciELO databases, books and specialized magazines about the subject, it was carried a literature review about the relationship between mouth breathing and dysphonia, analyzing the influence of alterations caused by mouth breathing on vocal quality and/or vocal behavior. It was possible observe that mouth breathing promotes several significant structural alterations, which reflect on stomatognathic functions and on phonation. However, few authors report the possible correlation between mouth breathing and dysphonia.
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    Diagrama de desvio fonatório na clínica vocal
    (Universidade Federal de São Paulo (UNIFESP), 2009-02-18) Madazio, Glaucya [UNIFESP]; Behlau, Mara [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Purpose: To identify which characteristics discriminates the hoarseness diagram of adult voices that are predominantly adapted, rough, breathy and strained. Method: 196 adult voice samples of the sustained vowel “ae” were analyzed. They were distributed into two groups, 163 with vocal deviation and 33 with healthy voices. Voice samples were submitted to two types of analyses: acoustic and auditory perceptual. The perceptual analyses focused on the identification of the vocal quality predominance – adapted, rough, breathy and strained and also in the degree of deviation, by using a visual analogue scale and its numeric correspondence. The acoustic analyses was performed by means of the VoxMetria software (CTS Informatica) and consisted of assessing the configuration of vocal sample distribution in the hoarseness diagram according to normality area, density, shape and location in the quadrants, and the extraction of fundamental frequency, jitter, shimmer, correlation and GNE. Results: There was a significant difference in the position of the voice samples in relation to the normality area of the diagram, meaning that 100% (33) of the adapted voices were located inside this area and 69.3% (113) of the deviated voices were outside it (p<0.001). Adapted voices presented concentrated density (78.8%, 26), which were statistically different from the deviated voices (56.4%, 92) that presented spread density (56.4%, 92). As far as voice type is concerned, all adapted voices were located at the inferior left quadrant, 45% (27) of the rough voices were at the inferior right, 52.6% (30) of the breathy voices were at the superior right and 54.3% (25) of the strained were at the inferior left. Concerning the degree of severity of vocal deviation, 93.8% of the 16 deviated voices evaluated as having a 1 degree of deviation were located at the inferior and superior right quadrants. In the other hand, 80 % (8) of the voice with a severe degree of deviation were located in the superior right quadrant. The inferior left quadrant concentrated the voices evaluated by the visual analogue scale up to 35.5mm (degree 1) and some from 35.5 to 50.5mm (degree 2). Voices with 3 degree of deviation were located in the inferior right Abstract and both superior left and right quadrants. The voices with the worse degree of deviation were located at the superior right quadrant. Jitter and shimmer differed the strained voices from the rough voices (p<0.021 e p=0.0032 respectively) and from the breathy voices (p=0.021 e p=0.005, respectively). The GNE did also differ the strained voices from the rough voices (p=0.003) and from the breathy voices (p<0.002).It also differentiated the rough from the breathy voices (p<0.001). The correlation between F0 and the other acoustic parameters was not significant and the quality of correlation was very poor: jitter (p=0.257; -8.9%), shimmer (p=0.158; -11.2%), correlation (p=0.285; 8.4%) and GNE (p=0.790; -2.1%). Conclusions: The hoarseness diagram differentiated the adapted from the deviated voices. Adapted voices were located in the normality area, and the majority of the deviated voices were outside it. There was not a relationship between type of voice, density and shape of configuration of vocal sample distribution in the diagram. The distribution of voices in the quadrants related to the type and degree of severity of voice deviation. GNE was the only acoustic parameter able to differ from the three types of deviated voices.
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    The Effectiveness of the Comprehensive Voice Rehabilitation Program Compared With the Vocal Function Exercises Method in Behavioral Dysphonia: A Randomized Clinical Trial
    (Mosby-Elsevier, 2016) Pedrosa, Vanessa [UNIFESP]; Pontes, Antonio [UNIFESP]; Pontes, Paulo [UNIFESP]; Behlau, Mara [UNIFESP]; Peccin, Maria Stella [UNIFESP]
    Objective. To evaluate the effectiveness of the Comprehensive Voice Rehabilitation Program (CVRP) compared with Vocal Function Exercises (VFEs) to treat functional dysphonia. Study Design. This is a randomized blinded clinical trial. Methods. Eighty voice professionals presented with voice complaints for more than 6 months with a functional dysphonia diagnosis. Subjects were randomized into two voice treatment groups: CVRP and VFE. The rehabilitation program consisted of six voice treatment sessions and three assessment sessions performed before, immediately after, and 1 month after treatment. The outcome measures were self-assessment protocols (Voice-Related Quality of Life [V-RQOL] and Voice Handicap Index [VHI]), perceptual evaluation of vocal quality, and a visual examination of the larynx, both blinded. Results. The randomization process produced comparable groups in terms of age, gender, signs, and symptoms. Both groups had positive outcome measures. The CVRP effect size was 1.09 for the V-RQOL, 1.17 for the VHI, 0.79 for vocal perceptual evaluation, and 1.01 for larynx visual examination. The VFE effect size was 0.86 for the V-RQOL, 0.62 for the VHI, 0.48 for the vocal perceptual evaluation, and 0.51 for larynx visual examination. Only 10% of the patients were lost over the study. Conclusions. Both treatment programs were effective. The probability of a patient improving because of the CVRP treatment was similar to that of the VFE treatment.
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    Equivalência cultural da versão Brasileira da Voice Symptom Scale: VoiSS
    (Sociedade Brasileira de Fonoaudiologia, 2011-12-01) Moreti, Felipe Thiago Gomes [UNIFESP]; Zambon, Fabiana [UNIFESP]; Oliveira, Gisele [UNIFESP]; Behlau, Mara [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Centro de Estudos da Voz
    PURPOSE: To present the cultural equivalence of the Brazilian version of the Voice Symptom Scale - VoiSS. METHODS: The questionnaire was translated into Portuguese by two Brazilian bilingual speech-language pathologists, who were informed about the purpose of this research. The back translation was performed by a third bilingual Brazilian speech-language pathologist, who was also an English teacher, and had not participated in the previous stage. After the comparison of translations, a final version of the questionnaire was produced and called Escala de Sintomas Vocais - ESV, which was administered to 15 individuals with vocal complaint. The inclusion criterion was the presence of dysphonia, regardless of type or degree. The option not applicable was added to each item of the protocol. RESULTS: During the process of translation and cultural adaptation, no item was changed and/or eliminated from the questions. The ESV kept the same structure as the original British version with 30 questions, 15 regarding the impairment domain (functionality), eight the emotional domain (psychological effect), and seven the physical domain (organic symptoms). CONCLUSION: The cultural equivalence of the Brazilian version of the VoiSS, entitled ESV, was demonstrated. The ESV validation is currently being concluded.
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    Impacto imediato após demanda vocal no cantor de teatro musical
    (Universidade Federal de São Paulo (UNIFESP), 2017-02-24) Pacheco, Claudia de Oliveira Lima Camargo [UNIFESP]; Behlau, Mara Suzana [UNIFESP]; http://lattes.cnpq.br/2274436726620746; http://lattes.cnpq.br/7485525730547312; Universidade Federal de São Paulo (UNIFESP)
    Objectives: Evaluate the immediate impact of vocal demand in musical theatre singers and explore its relation with the presence of vocal signs and symptoms. Methods: 264 singers/actors with ages from 18 to 72 and mean age of 33 years old took part in this research. 126 were female and 138 were male. All participants were currently performing musical theatre singers when the data was collected. All of them answered two questionnaires immediately after the performance. The first questionnaire was composed by 24 questions and was designed with the purpose of collecting information about identification, voice self-assessment and detailed explanation of the actors' characteristics, besides finding out the existence of vocal symptoms. The second one, Evaluation of the Ability to Sing Easily - EASE translated and culturally adapted to Brazilian Portuguese as EASE-BR. EASE-BR explores vocal fatigue features, pathologic-risk indicators and vocal concern after using the voice professionally. We have studied the relationship between the demographic data and the vocal use with the answers from EASE-BR. Results: Singers showed a low mean of 1.56 vocal symptoms being frequent throat clearing (50,76%) and chronic throat dryness (26.52%) the most mentioned ones. There was no significant difference in relation to age, number of practicing hours, singing lessons according to the total scores and subscales of EASE-BR. Artists with longer singing practice showed lower values at total scores and subscales of EASE-BR. Singers who have been singing opera and vocal solo besides musical theater presented lower values at total scores and subscales of EASE-BR. The ones with a higher number of vocal symptoms obtained higher scores both EASE-BR and subscales’. There was a fragile correlation between EASE-BR and vocal symptoms. The test-retest showed good reproduction. Conclusion: The data showed that singers evaluate the impact of vocal demand positively and considered their voices apt to a new performance. EASE-BR proved to be useful to identify vocal changes and it has a weak association with the presence of vocal symptoms.
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    Intervenção fonoaudiológica em grupo a cantores populares: estudo prospectivo controlado
    (Sociedade Brasileira de Fonoaudiologia, 2012-01-01) Goulart, Bárbara Niegia Garcia De; Rocha, Jaqueline Garcia Da; Chiari, Brasilia Maria [UNIFESP]; Universidade Federal do Rio Grande do Sul; Universidade Feevale; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To assess the benefits of a group vocal improvement program to popular singers without voice disorders. METHODS: This is a quasi-experimental intervention study, carried out with 37 popular singers of both genders, with ages between 18 and 40 years and adapted vocal quality. Participants were divided into two groups: Intervention (IG) and Control (CG). The IG included 21 subjects who participated in seven weekly lectures regarding anatomy and physiology of the vocal tract, vocal hygiene care, and vocal exercises for voice improvement. The CG included 16 participants, who maintained their normal activities during this period, and did not receive any orientations regarding vocal improvement. In pre- and post-intervention, all participants answered a questionnaire about habits and demands related to the voice, and were evaluated regarding resonance, speech articulation, voice projection, pitch, loudness, maximum phonation time, and s/z ratio. RESULTS: The vocal training was positive in the perception of the singers, who reported improvement in their voices. The assessment of maximum phonation time and s/z ratio did not present differences between groups (p=0.57). No modifications of behaviors potentially harmful to the vocal health were observed within 60 days after the intervention (p=0.24). There was also no considerable decrease of voice complaints (p=0.1), although the decrease percentage of complaints in the IG (22.2%) was higher than that of the CG (11.1%). CONCLUSION: Group vocal training intervention in popular singers is positive regarding the perception of the individual about his/her voice production, even though they presented adapted voice from the beginning of the process.
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    Perfil populacional de pacientes com disartria atendidos em hospital terciário
    (Sociedade Brasileira de Fonoaudiologia, 2009-01-01) Ribeiro, Ariella Fornachari; Ortiz, Karin Zazo [UNIFESP]; Universidade de São Paulo (USP); Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To characterize the populational profile of dysarthric patients assisted in a tertiary hospital, and to present the most frequent speech disorders found in this population. METHODS: A specific protocol proposed for dysarthric patients was applied, gathering data through tasks that evaluate breathing, phonation, resonance, articulation, and prosody. Sixty protocols applied to patients evaluated at the Communication Disorders Ambulatory of the institution were the study took place were randomly selected for analysis. Data was descriptively analyzed. RESULTS: Regarding the populational profile of the dysarthric patients attended at a tertiary hospital, it was observed prevalence of male subjects, mostly aged from 20 to 50 years. The most common types of dysarthria were flaccid and unilateral upper motor neuron. Stroke was the most prevalent etiology for this speech disorder. Regarding the motor bases evaluated, it was observed a predominance of mixed breathing, hoarse voice, and normal velar movement, although mild hypernasality was identified. Articulation was mostly severely altered, and mild prosody alterations were predominant in the investigated population. CONCLUSION: It was possible to draw a profile of dysarthric patients assisted in a tertiary hospital in Brazil. The most common characteristics were: short breathing cycles, hoarse hypernasal phonation, moderate to severe articulation disorders, mild prosody impairment and low speech rate.
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    The Phonatory Deviation Diagram: A Novel Objective Measurement of Vocal Function
    (Karger, 2011-01-01) Madazio, Glaucya [UNIFESP]; Leao, Sylvia [UNIFESP]; Behlau, Mara [UNIFESP]; Universidade Federal de São Paulo (UNIFESP); Ctr Estudos Voz
    Aim: To identify the discriminative characteristics of the phonatory deviation diagram (PDD) in rough, breathy and tense voices. Methods: One hundred and ninety-six samples of normal and dysphonic voices from adults were submitted to perceptual auditory evaluation, focusing on the predominant vocal quality and the degree of deviation. Acoustic analysis was performed with the VoxMetria (CTS Informatica). Results: Significant differences were observed between the dysphonic and normal groups (p < 0.001), and also between the breathy and rough samples (p = 0.044) and the breathy and tense samples (p < 0.001). All normal voices were positioned in the inferior left quadrant, 45% of the rough voices in the inferior right quadrant, 52.6% of the breathy voices in the superior right quadrant and 54.3% of the tense voices in the inferior left quadrant of the PDD. in the inferior left quadrant, 93.8% of voices with no deviation were located and 72.7% of voices with mild deviation; voices with moderate deviation were distributed in the inferior and superior right quadrants, the latter ones containing the most deviant voices and 80% of voices with severe deviation. Conclusion: the PDD was able to discriminate normal from dysphonic voices, and the distribution was related to the type and degree of voice alteration. Copyright (C) 2011 S. Karger AG, Basel
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    Recursos de ênfase utilizados por indivíduos com e sem treinamento de voz e fala
    (Sociedade Brasileira de Fonoaudiologia, 2012-06-01) Borrego, Maria Cristina De Menezes; Behlau, Mara [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To investigate how individuals with and without voice training use emphatic accent in two previously selected words during a reading. METHODS:Seventy seven individuals with ages between 19 and 57 years were distributed into two groups: 51 students from a radio training course - TG (trained group); and 26 subjects with no voice and speech training - UnTG (untrained group). Individuals read a radio report twice, emphasizing two different words in each reading: negotiates and reforms. The readings were recorded with an interval of two months between them, which corresponded to the beginning and end of the radio training course attended by the TG. Voice samples were submitted to: auditory-perceptual analysis of the occurrence, evaluation and use of emphasis; visual analysis of the spectrographic trace for delimitation of the pauses; acoustic analysis of the duration and fundamental frequency of the emphases. Results were submitted to statistical analysis. RESULTS: The TG had higher grades than the UnTG regarding the quality of emphasis use, and there was no difference in its occurrence and use. The word reforms had higher occurrence of emphasis and was better evaluated than the word negotiates. The TG used less pauses than the UnTG. Acoustic analysis showed that the word reforms was longer than negotiates in the UnTG. The mean fundamental frequency was higher for negotiates. CONCLUSION: Both groups demonstrated that the use of emphasis accompanies the individuality of speakers. The TG had better ability in the distribution of pauses. The words were distinctly emphasized due to syntactic and semantic aspects.
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    Relação entre dados ocupacionais, sintomas e avaliação vocal de operadores de telesserviços
    (Sociedade Brasileira de Fonoaudiologia, 2011-03-01) Dassie-leite, Ana Paula; Lourenço, Luciana; Behlau, Mara [UNIFESP]; Universidade Estadual do Centro-Oeste Departamento de Fonoaudiologia; Micelli Soluções em Saúde Empresarial Departamento de Fonoaudiologia; Universidade Federal de São Paulo (UNIFESP)
    PURPOSE: To relate data regarding gender, age and length of time on the job with voice symptoms and the results of vocal evaluation of teleservice operators. METHODS: A quantitative retrospective analysis was carried with 404 medical records regarding periodic evaluations of employees from bank institutions with owned headquarters contained in the files of a company of occupational medicine, 259 women, 145 men, with ages between 18 and 53 years (mean 30.48). The study had a descriptive exploratory design. RESULTS: Women presented greater quantity of voice symptoms (mean 1.69) and voice alterations (n=33; 12.7%) than men (mean 1.12; n=6; 4.1%). No difference was found between the amount of voice symptoms and the auditory-perceptive evaluation when related to age and length of time on the job. Employees with neutral voices (n=365; 90.35%) presented lesser symptoms (1.41) than employees with non-neutral voices (n=39; 9.65%; mean 2.21). Thirty-four (87.2%) of the 39 employees with non-neutral quality of voice presented laryngopharyngeal resonance, and 21 (53.8%) presented low pitch. Operators with moderate voice alteration presented increased loudness when compared to the operators with discreet alteration. CONCLUSION: Women present greater rate of voice symptoms and disorders. There is no relationship between the increase of age and length of time performing teleoperator functions with the increase of the number of symptoms and vocal alterations. Alterations of pitch, loudness and resonance are related to alterations on the quality of voice.
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    What About the Actor's Formant in Actresses' Voices?
    (Elsevier B.V., 2012-05-01) Master, Suely; De Biase, Noemi Grigolleto [UNIFESP]; Madureira, Sandra; Univ Estadual Paulista; Universidade Federal de São Paulo (UNIFESP); Pontificia Univ Catolica São Paulo
    Spectrographic analysis of male actors' voices showed a cluster, the actor's formant (AF), which is related to the perception of good and projected voice quality. To date, similar phenomena have not been described in the voices of actresses. Therefore, the objective of the current investigation was to compare actresses' and nonactresses' voices through acoustic analysis to verify the existence of the AF cluster or the strategies used to produce the performing voice. Thirty actresses and 30 nonactresses volunteered as subjects in the present study. All subjects read a 40-second text at both habitual and loud levels. Praat (v.5.1) was then used to analyze equivalent sound pressure level (Leq), speaking fundamental frequency (SFF), and in the long-term average spectrum window, the difference between the amplitude level of the fundamental frequency and first formant (L1 - L0), the spectral tilt (alpha ratio), and the amplitude and frequency of the AF region. Significant differences between the groups, in both levels, were observed for SFF and L1 - L0, with actresses presenting lower values. There were no significant differences between groups for Leq or alpha ratio at either level. There was no evidence of an AF cluster in the actresses' voices. Voice projection for this group of actresses seemed to be mainly a result of a laryngeal setting instead of vocal tract resonances.