Aim and objective: This study is aimed to evaluate and compare the effect of training on female trained (Hindustani classical) singers and untrained singers using electroglottography (EGG) parameters.
Materials and methods: A total of 60 female subjects aged between 18 and 30 years were categorized into two groups: 30 female Hindustani classical singers and 30 untrained female singers. EG-PC3 EGG system of Dr. Speech software, TigerDRS Inc was used for this study. The following five parameters were taken into consideration: contact quotient (CQ), contact index (CI), contact quotient perturbation (CQP), contact index perturbation (CIP), and contact ratio (CR). The recording procedure involved two tasks: singing and speech.
Results: By comparing these two groups with t-test, it has been found that p value is less than 0.05 (here α = 0.05 level of significance, 95% confidence level) for all the parameters which revealed significant difference of EGG parameters in trained and untrained singers for singing task as well as for speech task.
Conclusion: All the parameters are proved to be useful to show differences. The quantitative parameters with higher significance to differentiate were CQ, CI, CQP, CIP, and CR, which provide information with respect to the glottis contact, the vibratory regularity, the vibration symmetry, and the speed of closing and opening of the vocal folds.
Clinical significance: The study would help professional voice users to understand the impact of training on their phonatory capability and on their everyday speech pattern, thereby providing vocal education to the singers to prevent vocal abuse especially in case of untrained singers.
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