Clinical Characteristics and Voice Analysis of Patients With Mutational Dysphonia: Clinical Significance of Diplophonia and Closed Quotients

Lim, Jae Yol; Lim, Sung Eun; Choi, Seong Hee; Kim, Jeong Hong; Kim, Kwang Moon; Choi, Hong Shik

doi:10.1016/j.jvoice.2005.10.002

Cited by 27 publications

(17 citation statements)

References 7 publications

(10 reference statements)

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“…Results show that all patients had a decrease in the mean, maximum, and minimum fundamental frequency values, characterizing lower emissions. This result is correlated to the auditory-perceptual analysis in this study, with presence of lower pitch, which agrees with literature results (7)(8)(9)(10) . A study with ten teenagers with mutational falsetto in preand post-therapy conditions showed mean f0 values of 221 Hz and 119 Hz, respectively.…”

Section: Discussionsupporting

confidence: 93%

“…According to the results found, all patients obtained a better voice standard after therapy. These findings agree with literature that indicates speech-language therapy as the elected approach to treat mutational dysphonia, showing good results in the improvement of patients' voices (3,(7)(8)(9)(10) . With regards to auditory-perceptual analysis, the overall grade of dysphonia (G) improved in all the participants after intervention, corroborating other studies (7)(8)(9) .…”

Section: Discussionsupporting

confidence: 91%

“…These values are very close to those found in this research (222.4 Hz and 120.9 Hz) (9) . Researchers (10) acoustically analyzed the voices of 15 individuals with mutational dysphonia in pre-and post-therapy conditions, and verified vocal quality improvement and decrease of f0 after therapy. Another study (8) was conducted with 45 subjects and, after six months of therapy, there was significant differences in f0 values, comparing pre-and post-intervention, with decrease of f0 in all patients.…”

Section: Discussionmentioning

confidence: 99%

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Análises perceptivo-auditiva e acústica da voz nos momentos pré e pós fonoterapia de pacientes com falsete mutacional

Gama

Mesquita

Reis

et al. 2012

Rev. soc. bras. fonoaudiol.

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The most common mutational voice disorder is the mutational falsetto. The voices of four young male patients with mutational falsetto were acoustically and auditory-perceptively analyzed in pre-and post-therapy situations to verify the result of speech-language intervention. For data collection, the patients were asked to say the days of the week. Four speech-language pathologists performed auditory assessment of these emissions using auditory-perceptual parameters: overall grade of dysphonia, roughness, breathiness, strain, instability, and pitch. The emissions of each patient corresponding to pre-and post-therapy were randomly presented to the evaluators, who did not have prior knowledge of the condition being analyzed. The assessment was performed by comparison, and the evaluators should inform whether the second emission was better, worse or unchanged when compared to the first. When change was observed, they should select three auditory-perceptual parameters regarding the expressive modification. The evaluators were informed only about subjects' age and gender. Mean, maximum and minimum fundamental frequencies were extracted from each emission of the patients using the Praat Program (version 5132). Semitone values were also extracted and analyzed. Data was statistically analyzed. In the post-therapy condition, the evaluators found an improvement in the vocal quality of all patients, as well as a decrease in the mean, minimum and maximum fundamental frequencies and in the semitones, resulting in a deeper and more stable vocal pattern.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

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Análises perceptivo-auditiva e acústica da voz nos momentos pré e pós fonoterapia de pacientes com falsete mutacional

Gama

Mesquita

Reis

et al. 2012

Rev. soc. bras. fonoaudiol.

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“…These changes result in an improved perceptual impression of the voice. Lim et al 28 evaluate the effects of voice therapy combined with manual laryngeal compression in a similar group of 15 male patients with mutational dysphonia, using aerodynamic, acoustic, and electroglottographic testing. After therapy, subjects' voices lower in pitch and improve in quality significantly (paired t test).…”

Section: Functional Dysphoniamentioning

confidence: 99%

Effects of Voice Therapy: A Systematic Review

Speyer

2008

Journal of Voice

152

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“…In several additional studies, jitter and shimmer were measured intentionally in diplophonic fragments [14,15,16,17,18,19,20,21,22,23]. However, evidence in the literature for the effect of diplophonia on jitter and shimmer of voices with equal grades of hoarseness is low.…”

Section: Introductionmentioning

confidence: 99%

Diplophonia Disturbs Jitter and Shimmer Measurement

Aichinger

Hagmüller

Roesner³

et al. 2016

Folia Phoniatr Logop

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Objectives: The aims of this study are to investigate the effects of diplophonia on jitter and shimmer and to identify measurement limitations with regard to material selection and clinical interpretation. Materials and Methods: Four hundred and ninety-eight audio samples of sustained phonations were analyzed. The audio samples were assessed for the grade of hoarseness and the presence of diplophonia. Jitter and shimmer were reported with regard to perceptual ratings. We investigated cycle marker positions exemplarily and qualitatively to understand their implications for perturbation measurements. Results: Medians of jitter and shimmer were higher for diplophonic voices than for nondiplophonic voices with equal grades of hoarseness. The variance of jitter for moderately dysphonic voices was larger than the variance observed in a corpus from which diplophonic samples had been discarded. The positions of cycle markers in diplophonic voices did not match the positions of the pulses, indicating that the validity of jitter and shimmer values for these voices were questionable. Conclusion: Diplophonia biases the reporting of dysphonia severity via perturbation measures, and their validity is questionable for these voices. In addition, diplophonia is an influential source of variance in jitter measurements. Thus, diplophonic fragments of voice samples should be excluded prior to perturbation analysis.

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Clinical Characteristics and Voice Analysis of Patients With Mutational Dysphonia: Clinical Significance of Diplophonia and Closed Quotients

Cited by 27 publications

References 7 publications

Análises perceptivo-auditiva e acústica da voz nos momentos pré e pós fonoterapia de pacientes com falsete mutacional

Análises perceptivo-auditiva e acústica da voz nos momentos pré e pós fonoterapia de pacientes com falsete mutacional

Effects of Voice Therapy: A Systematic Review

Diplophonia Disturbs Jitter and Shimmer Measurement

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