Perceptual evaluation of voice quality and its correlation with acoustic measurements

Bhuta, Tarika; Patrick, Linda Denise; Garnett, James D.

doi:10.1016/j.jvoice.2003.12.004

Cited by 228 publications

(123 citation statements)

References 20 publications

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“…Studies also refer that the evolution of the symptomatology degree of the disorder is variable, being hard to follow this evolution, justifying , this way, these findings on the subjects with light symptomatology when compared to the moderate or severe degree (Bevilacqua-Grossi et al, 2006). However, according to Bhuta et al (2004) the rough has a relationship with the increasing of the harmonics on the findings of the spectrum graphic of Narrow Band, agreeing with the findings of the rough vocal type on the subjects of this research. Another relationship established, in this research, that might justifies the probable relationship of the degree of symptomatology of the disorder and the vocal production is regarding the presence of temporomandibular disorder and corporal alteration.…”

Section: Discussionsupporting

confidence: 90%

Relação entre grau de severidade de disfunção temporomandibular e a voz

Silva

Morisso

Cielo

2007

Pró-Fono R. Atual. Cient.

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TEMA: a disfunção temporomandibular é uma das desordens mais complexas do organismo capaz de desencadear alterações nos movimentos mandibulares que provocam prejuízos tanto na articulação da fala como na qualidade da voz. Na literatura a relação entre o grau de severidade da sintomatologia desta disfunção e a influência desta na produção vocal tem sido pouco estudada. OBJETIVO: verificar a relação entre o grau de severidade de sintomatologia da disfunção temporomandibular com a produção vocal. MÉTODO: participaram deste estudo 24 sujeitos, do gênero feminino, com idade variando entre 16 e 56 anos que foram submetidos à aplicação do questionário de índice anamnésico Fonseca et al. (1994), a exame odontológico, exame otorrinolaringológico e avaliação audiológica. Posteriormente os 24 sujeitos da pesquisa foram submetidos à gravação da voz, em gravador digital para posterior análise perceptivo-auditiva dos parâmetros da voz como: tipo vocal, ressonância, qualidade da emissão, pitch e loudness, e para análise dos parâmetros acústicos da espectrografia de banda larga, banda estreita e dos parâmetros acústicos por meio do Multi Dimensional Voice Program (MDVP) da Key Elementrics Real Time. RESULTADOS: verificou-se que de todos os parâmetros da avaliação perceptivo-auditiva da voz o grau de sintomatologia severo apresentou significância estatística para diminuição da loudness (p = 0,013). A qualidade vocal rouca foi a que mais apareceu nos sujeitos com grau leve e severo, seguida pela soprosa. Na espectrografia de banda larga houve significância estatística para o aumento da anti-ressonância (p = 0,013) no grau severo de disfunção temporomandibular. CONCLUSÃO: verificou-se que o grau de severidade ocasiona diminuição da loudness, aumento de ruído e alteração na ressonância da voz interferindo na qualidade vocal desses sujeitos.

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Section: Discussionsupporting

confidence: 90%

Relação entre grau de severidade de disfunção temporomandibular e a voz

Silva

Morisso

Cielo

2007

Pró-Fono R. Atual. Cient.

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“…Given the higher perturbation measures in the study group one would expect that the listeners should give high ratings on the parameter roughness, as has been shown in a study by Bhuta and collegues (31). However, others have noted that listeners and acoustic analyses packages differ in measurement characteristics (32).…”

Section: Discussionmentioning

confidence: 74%

Acoustic and Perceptual Aspects of Vocal Function in Children With Adenotonsillar Hypertrophy—Effects of Surgery

et al. 2012

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Objective: To evaluate outcome of two types of tonsil surgery (tonsillectomy+adenoidectomy or tonsillotomy +adenoidectomy) on vocal function perceptually and acoustically.Study Design: Sixty-seven children, aged 50-65 months, on waiting list for tonsil surgery were randomized to tonsillectomy (n=33) or tonsillotomy (n=34). Fifty-seven age and gender matched healthy pre-school children were controls. Twenty-eight of them, aged 48-59 months, served as control group before surgery, and 29, aged 60-71 months, after surgery Methods: Before surgery and six months postoperatively, the children were recorded producing three sustained vowels (/, , ) and 14 words. The control groups were recorded only once.Three trained speech and language pathologists performed the perceptual analysis using Visual Analogue Scales (VAS) for eight voice quality parameters. Acoustic analysis from sustained vowels included average fundamental frequency, jitter percent, shimmer percent, noise-to-harmonic ratio and the centre frequencies of formants 1-3Results: Before surgery the children were rated to have more hyponasality and compressed/throaty voice (p<0,05) and lower mean pitch (p<0,01) in comparison to the control group. They also had higher perturbation measures and lower frequencies of the second and third formant. After surgery there were no differences perceptually. Perturbation measures decreased but were still higher compared to the control group's, p<0, 05.Differences in formant frequencies for // and / remained. No differences were found between the two surgical methods.Conclusion: Voice quality is affected perceptually and acoustically by adenotonsillar hypertrophy. After surgery the voice is perceptually normalized but acoustic differences remain. Outcome was equal for both surgical methods.

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“…These parameters may be changed in laryngeal lesions, with an increase in vocal fold mass because of vibratory irregularities 21,22 . NHR associates the harmonic component with the noise in the sound wave, and the SPI indicates the mild phonation coefficient, being high in the excess of breathiness upon utterance, as it happens to glottic slits and hyperfunctional dysphonias 3,22 . The videolaryngoscopy exams were done in 259 children, of whom 73 were asymptomatic and received a score of 0 in the perceptual assessment.…”

Section: Discussionmentioning

confidence: 99%

Estudo epidemiológico de disfonias em crianças de 4 a 12 anos

Tavares¹,

Brasolotto²,

Santana³

et al. 2011

Braz. j. otorhinolaryngol. (Impr.)

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Chi ldren dysphonia studies have reported an incidence of 4.4 to 30.3%. Goals:To establish the prevalence of dysphonia in children, based on the opinion of the parents, acoustic and vocal-perceptual assessments, associated symptoms, risk factors and videolaryngoscopy findings. Materials and Methods:The parents from 2,000 children answered a questionnaire about the vocal quality of their children, and these children were submitted to perceptual vocal, acoustic and videolaryngoscopy assessments. Results:We had 1,007 boys and 993 girls; sporadic symptoms were reported by 206 parents and permanent symptoms were reported by 123. In the perceptual assessment, the G parameter (degree of dysphonia) had a score of 0 in 694 voices; 1 in 1,065 and 2 in 228. There was f0 reduction with age and the remaining acoustic parameters were high in children with a G score of 2. Nodules, thickening and inflammation were the most common in the videolaryngoscopy exams. Conclusions:Parental judgment indicated a prevalence of dysphonia in 6.15%, and perceptual analysis yielded a value of 11.4%. Vocal symptoms were associated with a phonatory overload. sinonasal disorders, vocal abuse and noise were considered relevant risk factors. The acoustic analysis kept a direct association with the perceptual-auditory. Laryngeal lesions were found in the videolaryngoscopy exams, stressing nodules, thickening and inflammation. Braz J Otorhinolaryngol. 2011;77(6):736-46. BJORL ORIGINAL ARTICLE

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Perceptual evaluation of voice quality and its correlation with acoustic measurements

Cited by 228 publications

References 20 publications

Relação entre grau de severidade de disfunção temporomandibular e a voz

Relação entre grau de severidade de disfunção temporomandibular e a voz

Acoustic and Perceptual Aspects of Vocal Function in Children With Adenotonsillar Hypertrophy—Effects of Surgery

Estudo epidemiológico de disfonias em crianças de 4 a 12 anos

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