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  • 1
    In: CoDAS, FapUNIFESP (SciELO), Vol. 33, No. 3 ( 2021)
    Abstract: ABSTRACT Purpose To analyze the immediate effect of laryngeal surface hydration associated with the performance of Tongue Trills (TT) on singers. Methods Thirty singers without vocal complaints or laryngeal alterations divided into control (CG) and experimental (EG) groups. The CG performed the TT for five minutes. The EG was submitted a nebulization with 3 ml of saline solution followed by TT for five minutes. Voice self-assessment, acoustic analysis and perceptual assessment were performed at Pre (Pre TT) and post (PTT) moments in CG and pre (Pre TT), post hydration (PH) and post hydration + TT (PHTT) in GE. In the self-assessment were evaluated quality, stability, vocal intensity and hoarseness. There were extract the values of the Fundamental frequency; Jitter%; Shimmer%, Noise-to-harmonic Ratio e Cepstral Peak Prominence-Smoothed (CPPs) in the acoustic analyze. The perceptual evaluation was performed by an experienced speech therapist. Results Comparing the results of self-assessment between groups showed improvement in the perception of stability and vocal intensity in the PTT (CG) in relation to PH (EG). Comparison between the EG moments showed a statistical difference in the vocal intensity perception, indicating a better results for PHTT. There was no statistical difference between the groups investigated in the perceptual assessments and acoustic analysis. Conclusion Surface laryngeal hydration does not potentiate the effect of TT on naturally hydrated singers with 3ml nebulization. For voice professionals with high vocal demand, surface hydration can be introduced during voice use to maintain vocal quality.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    Language: Portuguese
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2021
    detail.hit.zdb_id: 3070303-7
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  • 2
    In: CoDAS, FapUNIFESP (SciELO), Vol. 35, No. 3 ( 2023)
    Abstract: RESUMO Objetivo Verificar medidas acústicas das vozes de idosos pela análise não linear e realizar a comparação entre os sexos. Método Participaram 29 idosos, falantes do Português Brasileiro, vocalmente saudáveis: 14 homens e 15 mulheres. Todas as vozes foram julgadas como vocalmente saudáveis por três fonoaudiólogas treinadas, por meio de avaliação perceptivo-auditiva. A análise acústica não linear foi realizada pela análise da Reconstrução de Espaço de Fase utilizando o programa Análise de Voz. Resultados Foi observado diferença significativa no parâmetro irregularidade (p=0,001) e espaçamento (p=0,005) entre os sexos, com resultados piores no grupo masculino. Enquanto 93% das vozes masculinas apresentaram graus 2 ou 3 de irregularidade, estes graus foram observados em 53% das vozes femininas. Em 78,6% das vozes masculinas foi observado espaçamento de médio a grande, fato observado somente em 26,7% das mulheres. Conclusão Os resultados da análise não linear, por meio da REF, com a utilização do protocolo CIE, em vozes de idosos, mostraram o melhor resultado quanto ao número de curvas (quatro ou mais). Em relação à irregularidade do traçado, nos homens, a maioria apresentou graus 2 e 3 e nas mulheres, a metade apresentou grau 1. Relativo ao espaçamento, 78,6% das vozes masculinas foi observado espaçamento de médio a grande, fato observado somente em 26,7% das mulheres. Houve diferença entre os sexos nos achados vocais de idosos pelo protocolo CIE com a análise de Reconstrução de Espaço de Fase, apontado piores resultados na irregularidade e espaçamento na população masculina, o que sugere maior aperiodicidade vocal em homens idosos.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    Uniform Title: Análise não linear pela reconstrução do espaço de fase de vozes saudáveis de idosos
    Language: English , Portuguese
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2023
    detail.hit.zdb_id: 3070303-7
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  • 3
    In: CoDAS, FapUNIFESP (SciELO), Vol. 35, No. 3 ( 2023)
    Abstract: ABSTRACT Purpose To compare the results of the non-linear acoustic analysis of elderly male and female voices, speakers of Brazilian Portuguese. Methods Recordings of 14 men and 15 women were used. The voices were consensually judged to be vocally healthy by three trained speech therapists. The non-linear acoustic analysis was performed by the Phase Space Reconstruction (PSR) analysis using the Voice Analysis program. Results A significant difference was observed in the parameter irregularity (p = 0.001) and spacing (p = 0.005), with worse results for the male group. While 93% of male voices presented degrees 2 or 3 of irregularity, these degrees were observed in 53% of female voices. In 78.6% of male voices, medium to large spacing was observed, a fact observed only in 26.7% of women. Conclusion The results of the non-linear analysis, through the Phase Space Reconstruction, using the CIS Protocol, in the voices of the elderly, showed the best result in terms of the number of curves (four or more). Regarding the irregularity of the tracing, in men, the majority presented grades 2 and 3 and in women, half presented grade 1. Regarding the spacing, 78.6% of the male voices had medium to large spacing, a fact observed only in 26.7% of women.There was a difference between the sexes in the vocal findings of the elderly by the CIS protocol with the PSR, pointing out worse results irregularity and spacing in the male population, which suggests greater vocal aperiodicity in elderly men.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    Uniform Title: Nonlinear analysis by phase space reconstruction of healthy elderly voices
    Language: Portuguese , English
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2023
    detail.hit.zdb_id: 3070303-7
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  • 4
    Online Resource
    Online Resource
    American Speech Language Hearing Association ; 2019
    In:  Journal of Speech, Language, and Hearing Research Vol. 62, No. 10 ( 2019-10-25), p. 3752-3762
    In: Journal of Speech, Language, and Hearing Research, American Speech Language Hearing Association, Vol. 62, No. 10 ( 2019-10-25), p. 3752-3762
    Abstract: This study explored the role of auditory feedback in the regulation of oral–nasal balance in speakers of Brazilian Portuguese. Method Twenty typical speakers of Brazilian Portuguese (10 male, 10 female) wore a Nasometer headset and headphones while continuously repeating stimuli with oral and nasal sounds. Oral–nasal balance was quantified with nasalance scores. The signals from 2 additional oral and nasal microphones were played back to the participants through the headphones. The relative loudness of the nasal channel in the mix was gradually changed, so that the speakers heard themselves as more or less nasal. Results A repeated-measures analysis of variance of the mean nasalance scores of the stimuli at baseline, minimum, and maximum nasal feedback conditions demonstrated significant effects of nasal feedback condition ( p 〈 .0001) and stimuli ( p 〈 .0001). Post hoc analyses demonstrated that the mean nasalance scores were lowest for the maximum nasal feedback condition. The scores of the minimum nasal feedback condition were significantly higher than 2 of 3 baseline feedback conditions. The speaking amplitude of the participants did not change between the nasal feedback conditions. Conclusions Increased nasal signal level feedback led to a compensatory adjustment in the opposite direction, confirming that oral–nasal balance is regulated by auditory feedback. However, reduced nasal signal level feedback resulted in a compensatory response that was lower in magnitude. This suggests that, even in Brazilian Portuguese, a language with phonetic and phonological vowel nasalization, decreased nasality was not perceived as critically as increased nasality by the speakers.
    Type of Medium: Online Resource
    ISSN: 1092-4388 , 1558-9102
    Language: English
    Publisher: American Speech Language Hearing Association
    Publication Date: 2019
    detail.hit.zdb_id: 2070420-3
    SSG: 5,2
    SSG: 7,11
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  • 5
    In: Journal of Voice, Elsevier BV, ( 2022-3)
    Type of Medium: Online Resource
    ISSN: 0892-1997
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 2111437-7
    SSG: 7,11
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  • 6
    In: CoDAS, FapUNIFESP (SciELO), Vol. 30, No. 5 ( 2018-10-22)
    Abstract: ABSTRACT Purpose Characterize voices of adult individuals without vocal complaints and verify the effect of gender and age with the use of acoustic measures. Methods One-hundred and seventy-six voice recordings belonging to adults between 19 and 59 years old, divided into four age groups, for decade, recorded in a database were analyzed. All voices analyzed were classified with no deviation in vocal quality. Acoustic analysis of the parameters was performed: Fundamental Frequency (sustained vowel and connected speech), Jitter, Shimmer and Noise-to-Harmonic Ratio through Multi Dimension Voice Program (KayPentax) software. The effect of gender, age and possible interactions were verified through the Factorial Anova test. When necessary, post hoc was performed with the Least Significant Difference test. Results There were changes in the voice as a function of age, with a decrease in the Fundamental Frequency in the vowel and connected speech modalities in women and in the Fundamental Frequency of the speech in men. In men, an increase in shimmer measure was observed with the advancing age. Differences between genders were found in the measures of Fundamental Frequency, Jitter and Noise to Harmonic Ratio. Conclusion Vocal changes due to advancing age can be identified acoustically at the end of adulthood, and in women, these changes can be marked previously to the menopausal period.
    Type of Medium: Online Resource
    ISSN: 2317-1782
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2018
    detail.hit.zdb_id: 3070303-7
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  • 7
    In: Revista CEFAC, FapUNIFESP (SciELO), Vol. 21, No. 3 ( 2019)
    Abstract: RESUMO Objetivo: realizar revisão integrativa da literatura sobre as características acústicas da produção da voz saudável, da infância à terceira idade. Métodos: foi realizado levantamento bibliográfico nas bases de dados Pubmed, Scielo, Medline e Lilacs, nos últimos dez anos. Foram encontrados 19 estudos que atenderam aos critérios propostos e investigaram as medidas acústicas: F0 (Frequência Fundamental), jitter, shimmer e/ou medidas de ruído, em homens e mulheres, com vozes normais, em diferentes fases da vida. Resultados: a análise mostrou que F0 é o parâmetro acústico que mais sofre mudanças com o crescimento e o envelhecimento da população, apresentando queda gradativa de seus valores da infância à velhice, na população feminina, enquanto que em homens, a redução acontece até a fase adulta. Jitter, shimmer e ruído permanecem estáveis durante a fase infantil e adulta, enquanto shimmer e medidas de ruído aumentam na terceira idade. Na literatura, não há consenso a respeito do aumento da medida de jitter na população idosa. Conclusão: da infância à terceira idade, em ambos os sexos, ocorrem mudanças vocais que são refletidas principalmente pela F0. Há escassez de informações acústicas derivadas de uma determinada população com ampla faixa etária, utilizando uma mesma metodologia. As informações deste estudo podem orientar futuras investigações que buscarão compreender as mudanças naturais ocorridas na voz humana e, também, guiar a prática clínica.
    Type of Medium: Online Resource
    ISSN: 1982-0216 , 1516-1846
    Language: English
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 2019
    detail.hit.zdb_id: 2432165-5
    SSG: 7,36
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  • 8
    In: Journal of Voice, Elsevier BV, Vol. 36, No. 6 ( 2022-11), p. 876.e17-876.e26
    Type of Medium: Online Resource
    ISSN: 0892-1997
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2022
    detail.hit.zdb_id: 2111437-7
    SSG: 7,11
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  • 9
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 153, No. 1 ( 2023-01-01), p. 576-585
    Abstract: This study compares fundamental frequency (fo) and fundamental frequency standard deviation (foSD) of COVID-19 patients with the same parameters in the speech of subjects without COVID-19, and verifies whether there is an effect of age and sex in the patient group. Both groups, subjects with and without COVID-19, are formed by Brazilian Portuguese speakers. Speech samples were obtained from 100 patients with mild to severe symptoms of COVID-19, and 100 healthy subjects. A single 31-syllable Portuguese sentence was used as the elicitation material for all subjects. The recordings were divided into four age groups. The acoustic measures were semi-automatically extracted and analyzed by a series of analyses of variance. Patients with COVID-19 present vocal differences in fo-related parameters when compared to healthy subjects, that is, patient voices presented higher fo and foSD with respect to control voices. In addition, for patient voices, there was an age and sex effect on fo SD values. Vocal parameters of women and elderly subjects showed more marked differences in fo-related parameters, indicating that patient voices are higher-pitched and have a higher variation of fo SD. Consequently, fo-related parameters may be tested as vocal biomarkers in the screening of respiratory insufficiency by voice analysis, in patients with severe symptoms of COVID-19.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    RVK:
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2023
    detail.hit.zdb_id: 1461063-2
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