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ORIGINAL ARTICLE
Year : 2020  |  Volume : 10  |  Issue : 2  |  Page : 27-33

A comparative study on steady and fluctuating semi-occluded vocal tract exercises between phonation of/a/and/E/


1 Masters in Audiology and Speech-Language Pathology, Ali Yavar Jung National Institute of Speech and Language Disabilities, (D), R.C, Kolkata, West Bengal, India
2 Lecturer in Speech and Hearing, Ali Yavar Jung National Institute of Speech and Language Disabilities, (D), R.C, Kolkata, West Bengal, India
3 Bachelor of Audiology and Speech-Language Pathology, Department of Speech and Hearing, Ali Yavar Jung National Institute of Speech and Language Disabilities, (D), R.C, Kolkata, West Bengal, India

Correspondence Address:
Indranil Chatterjee
Ali Yavar Jung National Institute of Speech and Hearing Disability, (D), NILD Campus, B. T. Road, Bonhooghly, (Near State Bank ATM), Kolkata - 700 090, West Bengal
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jlv.jlv_3_20

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Context: Semi-occluded vocal tract exercises (SOVTEs) helps to change the acoustic vocal tract impedance in relation to the glottal impedance, improving voice quality. SOVTE has been divided into two groups: steady and fluctuating SOVTEs based on their source of vibration and acoustic characteristics. Aims: The aim of the study was to examine and compare the difference between steady and fluctuating SOVTE with phonation of/a/and/E/on electroglottography and F1–F0 analysis. Settings and Design: Survey design. Study Type: Consort type of study. Materials and Methods: Hundred male participants within the age range of 18–25 years were selected for the study. All the participants were asked to phonate (a) and (E) vowels at a constant pitch for at least 3 s, then all samples were recorded. Assessment of contact quotient percentage value in electroglottography and PRAAT software were used for F1–F0 analysis. Data processing was done on Excel spreadsheet and scoring was processed by SPSS software. Statistical analysis used: One-way analysis of variance (ANOVA) in SPSS Statistics was used for statistical analysis. Results: Mean ± standard deviation and one-way ANOVA revealed that the significant difference was obtained at P < 0.05 in between the steady and fluctuating SOVTEs with phonation of/a/and/E/on EGG parameter and acoustic measure (F1–F0). Conclusions: The study suggested that contact quotient percentage and F1–FO (Hz) value in phonation of/E/are more than/a/. It indicates that phonation of/E/with SOVTEs has more effective in voice disorders than the phonation of/a/and that can be beneficial for treatment of organic voice disorders.


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