Clinical relevance of speaking voice intensity effects on acoustic jitter and shimmer in children between 5;0 and 9;11 years

Brockmann-Bauser, Meike; Beyer, Denis; Bohlender, Jürgen

doi:10.1016/j.ijporl.2014.09.020

Cited by 19 publications

(19 citation statements)

References 30 publications

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“…However, the clinical usefulness of these results is tempered by the comparatively small difference of One way to control for these effects is to modify the clinical voice task. As shown in previous work, vocally healthy children (> 6 years of age) and adults were able to control their own voice SPL by using visual feedback 23 . In a study of 20 vocally healthy women and 20 vocally healthy men, subjects were asked to phonate at 65, 75, 85 and 95 dBA (recording distance 10 cm) and provided with visual feedback.…”

Section: Consequences For the Clinical Application Of Perturbation Pamentioning

confidence: 54%

“…Under these measurement conditions, vowel effects have been documented in a number of works in individuals with and without voice disorders. For this reason, the current recommendation is to use the standard vowel /a/ in clinical practice 7,[22][23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

“…To date, it is not clear if these effects also apply to other indices of vocal perturbation or irregularity such as HNR. Also, this relation has been only investigated in vocally healthy adults and children 4,7,22,23,35 . Therefore, the main aims of the present work were to study SPL-related effects on jitter, shimmer, and HNR in individuals with and without diagnosed voice disorders, while also considering the influence of age and occupation-related voice use level.…”

Section: Introductionmentioning

confidence: 99%

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Acoustic Perturbation Measures Improve with Increasing Vocal Intensity in Individuals With and Without Voice Disorders

2018

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OBJECTIVE: In vocally healthy children and adults, speaking voice loudness differences can significantly confound acoustic perturbation measurements. This study examines the effects of voice sound pressure level (SPL) on jitter, shimmer, and harmonics-to-noise ratio (HNR) in adults with voice disorders and a control group with normal vocal status. STUDY DESIGN: This is a matched case-control study. METHODS: We assessed 58 adult female voice patients matched according to approximate age and occupation with 58 vocally healthy women. Diagnoses included vocal fold nodules (n = 39, 67.2%), polyps (n = 5, 8.6%), and muscle tension dysphonia (n = 14, 24.1%). All participants sustained the vowel /a/ at soft, comfortable, and loud phonation levels. Acoustic voice SPL, jitter, shimmer, and HNR were computed using Praat. The effects of loudness condition, voice SPL, pathology, differential diagnosis, age, and professional voice use level on acoustic perturbation measures were assessed using linear mixed models and Wilcoxon signed rank tests. RESULTS: In both patient and normative control groups, increasing voice SPL correlated significantly (P < 0.001) with decreased jitter and shimmer, and increased HNR. Voice pathology and differential diagnosis were not linked to systematically higher jitter and shimmer. HNR levels, however, were statistically higher in the patient group than in the control group at comfortable phonation levels. Professional voice use level had a significant effect (P < 0.05) on jitter, shimmer, and HNR. CONCLUSIONS: The clinical value of acoustic jitter, shimmer, and HNR may be limited if speaking voice SPL and professional voice use level effects are not controlled for. Future studies are warranted to investigate whether perturbation measures are useful clinical outcome metrics when controlling for these effects. Study Design: Matched case-control study Methods: 58 adult female voice patients, matched according to approximate age and occupation with 58 vocally healthy women, were assessed. Diagnoses included vocal fold nodules (n:39, 67.2%), polyps (n:5, 8.6%), and muscle tension dysphonia (MTD; n:14, 24.1%). All participants sustained the vowel /a/ at soft, comfortable, and loud phonation levels. Acoustic voice SPL, jitter, shimmer, and HNR were computed using Praat. The effects of loudness condition, voice SPL, pathology, differential diagnosis, age, and professional voice use level on acoustic perturbation measures were assessed using linear mixed models and Wilcoxon signed-rank tests.Results: In both patient and normative control groups, increasing voice SPL correlated significantly (p<0.001) with decreased jitter and shimmer, and increased HNR. Voice pathology and differential diagnosis were not linked to systematically higher jitter and shimmer. HNR levels, however, were statistically higher in the patient versus control group at comfortable phonation levels. Professional voice use level had a significant effect (p<0.05) on jitter, shimmer, and HNR.Conclusions: The clinical value of ac...

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Section: Consequences For the Clinical Application Of Perturbation Pamentioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acoustic Perturbation Measures Improve with Increasing Vocal Intensity in Individuals With and Without Voice Disorders

2018

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“…Quando comparadas com a emissão controlada, as Lorena de Almeida Ramos, Bárbara Oliveira Souza, Ana Cristina Côrtes Gama apresenta-se mais aguda por sofrer influência dos aspectos prosódicos 11 . As medidas acústicas de aperiodicidade de frequência e intensidade a curto prazo em crianças normofônicas foram também analisadas em três estudos 8,9,16 , por meio do programa Multi Dimensional Voice Program (MDVP) da Kay Pentax®, e apresentadas por faixa etária na Tabela 2. medidas acústicas de jitter e shimmer em crianças vocalmente saudáveis foram significativamente maiores na emissão habitual 14,15 . Os resultados da literatura evidenciam que as modificações anatô-micas sofridas na laringe durante o crescimento infantil modificam a f0, principalmente a partir dos seis anos de idade 16 .…”

Section: Qualidade Vocalunclassified

Análise vocal na infância: uma revisão integrativa

2017

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Resumo Objetivo: realizar uma revisão integrativa de literatura sobre as características de vozes normais e disfônicas e a prevalência de lesões nas pregas vocais em crianças. Voz", "Disfonia", "Rouquidão", "Qualidade da Voz", "Acústica da Fala", "Voz", "Fonação", "Pregas Vocais", "Pediatria", "Criança", "Pré-EscolarContribuição dos autores: LAR foi responsável pela busca bibliográfica, desenvolvimento do texto, elaboração do projeto e do manuscrito; BOS foi responsável pela busca bibliográfica e desenvolvimento do texto; ACCG foi responsável pela orientação geral das etapas de execução e elaboração do projeto e do manuscrito.

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“…Therefore, the reliability and validity of clinical jitter and shimmer measurements have to be considered as limited, and measurements should be interpreted on an individual basis. [11][12][13][14][15][16][17] dar, der auch kombinierte Parameter (bspw. Dysphonia Severity Index: DSI), welche Jitter und/oder Shimmer integrieren, deutlich verzerren kann.…”

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confidence: 99%

Wie aussagekräftig sind die instrumentellen akustischen Irregularitätsparameter Jitter und Shimmer in der Stimmdiagnostik?

Brockmann-Bauser

Bohlender

2016

Sprache Stimme Gehör

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Zusammenfassung Gem?? europ?ischen und US-amerikanischen Richtlinien werden im Kindes- und Erwachsenenalter zum Nachweis von Stimmst?rungen instrumentelle akustische Messungen der Irregularit?tsparameter Jitter und Shimmer empfohlen. In der klinischen Anwendung gibt es eine Reihe von pragmatischen und physiologischen Einflussfaktoren wie die Sprechlautst?rke, das Geschlecht oder das Alter, welche die Messergebnisse signifikant beeinflussen. Bisher kann der Einfluss dieser Faktoren nur begrenzt in der Standarduntersuchung kontrolliert werden, sodass die Reliabilit?t und als Konsequenz auch die Validit?t von objektiven Indices wie Jitter und Shimmer eingeschr?nkt sind. Beide Parameter k?nnen zum Vergleich von Vorher-Nachher-Effekten herangezogen werden, wenn die Messbedingungen und auch die Sprechlautst?rke identisch oder vergleichbar sind. Die Messergebnisse m?ssen jedoch immer individuell interpretiert werden und sind stimmdiagnostisch gesehen ein unabh?ngiges Merkmal, das zum Eindruck der Stimmfunktion beitragen kann.

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Clinical relevance of speaking voice intensity effects on acoustic jitter and shimmer in children between 5;0 and 9;11 years

Cited by 19 publications

References 30 publications

Acoustic Perturbation Measures Improve with Increasing Vocal Intensity in Individuals With and Without Voice Disorders

Acoustic Perturbation Measures Improve with Increasing Vocal Intensity in Individuals With and Without Voice Disorders

Análise vocal na infância: uma revisão integrativa

Wie aussagekräftig sind die instrumentellen akustischen Irregularitätsparameter Jitter und Shimmer in der Stimmdiagnostik?

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