Resonance Characteristics in Epiglottic Cyst: Formant Frequency, Vowel Space Area, Vowel Articulatory Index, and Formant Centralization Ratio

Lee, YeonWoo; Park, Hee June; Bae, In Ho; Kim, Geun‐Hyo

doi:10.1016/j.jvoice.2021.09.008

Cited by 4 publications

(6 citation statements)

References 18 publications

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“…It is thus understood that the acoustic speech production mechanism involves adjustments made by the vocal tract in both the glottal source and filter. Hence, this study aimed to investigate the source-filter relationship process in the development Auditory-perceptual and acoustic measures of various types of auditory-perceptual and acoustic analysis measures, as voice changes usually disturb sound in different ways (13,22,23) .…”

Section: Discussionmentioning

confidence: 99%

“…The first formant (F1) is related to the oromandibular complex; as the oral cavity opens, the F1 frequency decreases. The second formant (F2) is related to the degree of vowel anteriorization -i.e., the extent to which the pharynx is free based on tongue position; the more the tongue is anteriorized, the greater the F2 frequency (8,13,14) .…”

Section: Introductionmentioning

confidence: 99%

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Auditory-perceptual and acoustic measures in women with and without vocal nodules

Conserva

França

Lopes

2022

Audiol., Commun. Res.

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Purpose To compare the acoustic and auditory-perceptual measures of the voice of women with and without vocal nodules. Methods Twelve women with vocal nodules (MNV group) and 12 without vocal nodules (MSNV group) participated in the study. They were submitted to the recording of their sustained /a/ vowel, in order to extract the mean of the fundamental frequency (f0), standard deviation of f0 (SD f0), jitter, shimmer, GNE, cepstral measure of CPPS, and spectral measures of differences of the first and second harmonics (H1-H2); and recording of the carrier phrases: “I say papa baixinho”, “I say pipa baixinho” and “I say pupa baixinho”, to extract the first (F1) and second formant (F2) of the vowel segments /a, i, u/. For auditory-perceptual assessment, the visual-analog scale (VAS) was used. Results The comparative analysis between the groups shows higher values for the MNV in the parameters general degree, roughness and breathiness, and for the shimmer acoustic measure. The F1 values for the vowels /a/ and /u/, and the F2 values for the vowel /a/ were higher in the same group. Conclusion According to the data observed in the investigated sample, women with nodules have more deviated voices, with the presence of roughness and breathiness, and changes in vocal tract adjustments, with a possible reduction in the amplitude of the articulators, when compared to women without vocal nodules.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Auditory-perceptual and acoustic measures in women with and without vocal nodules

Conserva

França

Lopes

2022

Audiol., Commun. Res.

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“…Assim, entende-se que o mecanismo acústico de produção da fala envolve ajustes, tanto na fonte glótica, quanto no filtro (ajustes realizados pelo trato vocal). Desse modo, buscou-se investigar o processo da relação fonte-filtro a partir do desenvolvimento de diversos tipos de medidas de análise perceptivo-auditivas e acústicas, visto que as alterações da voz geralmente perturbam o som de diferentes maneiras (13,22,23) .…”

Section: Discussionunclassified

“…Já o segundo formante (F2), está relacionado com o grau de anteriorização da vogal, ou seja, o quanto a faringe está livre pelo posicionamento da língua. Quanto maior o grau de anteriorização da língua, maior será a frequência de F2 (8,13,14) .…”

Section: Introductionunclassified

Medidas perceptivo-auditivas e acústicas de mulheres com e sem nódulos vocais

Conserva

França

Lopes

2022

Audiol., Commun. Res.

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RESUMO Objetivo Comparar as medidas acústicas e perceptivo-auditivas de mulheres com e sem nódulos vocais. Métodos Participaram do estudo 12 mulheres com nódulos vocais (grupo MNV) e 12 sem nódulos vocais (grupo MSNV). Foram submetidas à gravação da vogal /a/ sustentada, com o objetivo de extrair a média da frequência fundamental (f0), desvio padrão de f0 (DP f0), jitter, shimmer, Glottal Noise Excitation, medidas relacionadas ao Cepstral Peak Prominence-Smoothed, medidas espectrais das diferenças do primeiro e segundo harmônico (H1-H2) e gravação das frases-veículo: “Digo papa baixinho”, “Digo pipa baixinho” e “Digo pupa baixinho”, para extração do primeiro (F1) e segundo formante (F2) dos segmentos vocálicos /a, i, u/. Para avaliação perceptivo-auditiva, utilizou-se a Escala Visual Analógica. Resultados A análise comparativa entre os grupos evidenciou maiores valores para o grupo MNV nos parâmetros grau geral, rugosidade e soprosidade e para a medida acústica shimmer. Os valores de F1 para as vogais /a/ e /u/ e os valores de F2 para a vogal /a/ apresentaram-se mais elevados no mesmo grupo. Conclusão mulheres com nódulos apresentaram vozes mais desviadas, com presença de rugosidade e soprosidade e modificações nos ajustes do trato vocal, com possível redução na amplitude dos articuladores, quando comparadas às mulheres sem nódulos vocais.

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“…[20] The F2 ratio parameter tends to decrease when the articulation is inaccurate and increase when the articulation movement improves. The F2 ratio, FCR, and VSA can be calculated using the following equations: [18,21,22] F2 ratio = (F2=i=) = (F2=u=)…”

Section: Vowel Quadrilateral Evaluationmentioning

confidence: 99%

Correlation between the parameters of quadrilateral vowel and dysphonia severity in patients with traumatic brain injury

Park

Yoo

2023

Medicine

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Dysarthria and dysphonia are common in patients with traumatic brain injury (TBI). Multiple factors may contribute to TBI-induced dysarthria, including poor vocalization, articulation, respiration, and/or resonance. Many patients suffer from dysarthria that persists after the onset of TBI, with negative effects on their quality of life. This study aimed to investigate the relationship between vowel quadrilateral parameters and Dysphoria Severity Index (DSI), which objectively reflects vocal function We retrospectively enrolled TBI patients diagnosed using computer tomography. Participants had dysarthria and dysphonia and underwent acoustic analysis. Praat software was used to measure vowel space area (VSA), formant centralization ratio (FCR), and the second formant (F2) ratio. For the 4 corner vowels (/a/,/u/,/i/, and/ae/), the resonance frequency of the vocal folds was measured and is shown as 2-dimensional coordinates for the formant parameters. Pear-son correlation and multiple linear regression analyses were performed between the variables. VSA showed a significant positive correlation with DSI/a/ (R = 0.221) and DSI/i/ (R = 0.026). FCR showed a significant negative correlation with DSI/u/ and DSI/i/. The F2 ratio showed a significant positive correlation with DSI/u/ and DSI/ae/. In the multiple linear regression analysis, VSA was found to be a significant predictor of DSI/a/ (β = 0.221, P = .030, R2 = 0.139). F2 ratio (β = 0.275, P = .0.015) and FCR (β = −0.218, P = .029) was a significant predictor of DSI/u/ (R2 = 0.203). FCR was a significant predictor of DSI/i/ (β = –0.260, P = .010, R2 = 0.158). F2 ratio was a significant predictor of DSI/ae/ (β = 0.254, P = .013, R2 = 0.154). Vowel quadrilateral parameters, such as VSA, FCR, and F2 ratio, may be associated with dysphonia severity in TBI patients.

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Resonance Characteristics in Epiglottic Cyst: Formant Frequency, Vowel Space Area, Vowel Articulatory Index, and Formant Centralization Ratio

Cited by 4 publications

References 18 publications

Auditory-perceptual and acoustic measures in women with and without vocal nodules

Auditory-perceptual and acoustic measures in women with and without vocal nodules

Medidas perceptivo-auditivas e acústicas de mulheres com e sem nódulos vocais

Correlation between the parameters of quadrilateral vowel and dysphonia severity in patients with traumatic brain injury

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