Dr. R. Rajasudhakar

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Dr. R. Rajasudhakar

Associate Professor in Speech Sciences, Department of Speech Language Sciences

Phone Office: 2724

In the Department of Speech-Language Sciences, Dr. R. Rajasudhakar holds the position of Associate Professor in Speech Science. He earned his Bachelor's degree in Speech and Hearing and Master's degree in Speech-Language Pathology in 2003 and 2005 respectively, at the All India Institute of Speech & Hearing in Mysore. Under the supervision of late Dr. S R Savithri, the former Director of AIISH, Mysore, he completed his Doctoral thesis in 2015. As part of his Ph.D thesis, he measured the vocal recovery index, assessed daily and weekly vocal load in primary school teachers using time dose analysis, and quantified the prevalence of vocal fatigue symptoms.

His research focuses on voice sciences and disorders, speech acoustics, singing voice, speech-language perception/processing, swallowing issues in patients with stroke and head and neck cancers. He actively teaches at graduate and undergraduate speech-language pathology students.

He has completed six-months Clinical Fellowship Program for Speech Language Pathologists in Laryngology at the Deenanath Mangeshkar Hospital and Research Center (DMH & RC) in Pune, India from January to June of 2023. He gained experiences in evaluating and managing patients with voice problems, airway issues and dysphagia due to neurological conditions and head and neck cancers. The six-months fellowship program provided him the chance to carry out clinical swallow examination, flexible endoscopic evaluation of swallowing (FEES), laryngectomy rehabilitation, post phono-surgery voice therapy and dysphagia evaluation and therapy for patients admitted to the in-patient department (IPD), including the intensive care unit (ICU) and high dependency unit (HDU).

He holds lifetime memberships in the Indian Speech and Hearing Association; Acoustical Society of India; Rehabilitation Council of India; and Indian Laryngology and Voice Association (LVA).

(a) International Publications

Yeshoda, K., and Rajasudhakar, R. (2022). Effects of occupational risk factors on subjective vocal aerodynamic measures in Teachers. Indian Journal of Otolaryngology and Head & Neck Surgery. (In Press). DOI: 10.1007/s12070-022-03136-8.
Jayakumar, T., Rajasudhakar, R. & Jesnu Jose Benoy (2022). Comparison and validation of acoustic voice quality index version 2 and version 3 among south Indian population. Journal of Voice, (In Press).
Yeshoda, K., Rajasudhakar, R. & Lokheshwar, S (2021). Impact of Voice Conservation Sensitization Program in Nursing Trainees: A Pre-Post Comparison. Education in the Health Profession, Vol 3; Issue 3, Page No. 116-123. DOI: 10.4103/EHP.EHP_34_20. (ISSN: 2590-1761)
Lokheshwar, S. & Rajasudhakar, R. (2021). Medical practitioner’s awareness on Speech-Language Pathologists and their services in India: A pilot study. Journal of Interprofessional Education & Practice, Vol. 23, June. pp 1-5. DOI: 10.1016/j.xjep.2020.100412
Abhishek, B.P., Rajasudhakar, R. & Ranjitha Kashyap (2019). Cognitive flexibility and response inhibition abilities in individuals with MCI and normal aging individuals. International Journal of Mind, Brain and Cognition, Vol. 10, No. 1-2, Jan-Dec. pp 37-45.
Priyadharshini, V. & Rajasudhakar, R. (2019). Statistical learning of dependencies in children with specific language impairment: An exploratory study. International Journal of Research Studies in Language Learning, Vol. 8 (2), pp 1-15.
Shanmugasundaram, L. & Rajasudhakar, R. (2018). A Preliminary study using thermal imaging on voice and throat temperature under induced vocal loading. International Journal of Health Sciences and Research, Vol. 8 (11), pp 8-17.
Savithri, S. R., Rajasudhakar, R., Priya, M. B. & Aishwarya, N. (2018). Effectiveness of orientation program on communication disorders for ASHA workers of Mysure, Mandya and Chamarajanagar districts. International Journal of Health Sciences and Research, Vol. 8 (11), pp 1-7.
Deepak, P., Darshan, H. S. & Rajasudhakar, R. (2018). A pre-post comparison of articulatory behaviours in Accent training: A preliminary investigation. International Journal of Mind, Brain & Cognition, Vol. 9 (1-2), pp 9-22.
Rajasudhakar, R. (2016). Effect of Voice Therapy in Sulcus Vocalis: A single case study. South African Journal of Communication Disorders, Vol. 63, No. 1, pp. 1-5.

(b) National Publications:

Abhishek, B. P., Rajasudhakar, R. & Ranjitha Kashyap (2019). Examining the Executive Functions in Neurotypical Individuals and Individuals with Mild Cognitive Impairment. Research and Reviews: Journal of Neuroscience, Vol. 9 (2): page no. 10–15.

Shanmugasundaram, L. & Rajasudhakar, R. (2018). Effect of vocal loading on throat temperature in young phono-normal adults. Journal of Laryngology and Voice, Vol. 8, pp 14-18.
Arjun, M. & Rajasudhakar, R. (2016). Benchmark for Speaker Identification using Linear Prediction Coding (LPC) on vowels preceding nasal continuants in Kannada. Journal of Acoustical Society of India (JASI), Vol. 43, (2), pp 97-107.
Arjun, M. & Rajasudhakar, R. (2015). Closed set Speaker Identification using Mel Frequency Cepstral Coefficients on Vowels Preceding Nasal Continuants in Kannada. Journal of All India Institute of Speech and Hearing, Vol. 34, pp. 76-84.
Yeshoda, K., Rajasudhakar, R., Jayakumar, T., Amoolya, G. & Deepthi, D. (2013). Investigation of voice characteristics in special educators using Dysphonia Severity Index. Journal of All India Institute of Speech and Hearing, 32, 30-35.
Rajasudhakar. R, Pramoda, K., Yeshoda, K, & Geetha, Y. V. (2011). An Evaluative Study of Vocal Hygiene Awareness Program in Professional Voice Users (Prospective Teachers). Journal of All India Institute of Speech and Hearing, 30, 9-14.
Rajasudhakar, R. & Savithri, S. R. (2009). Voicing periods in a primary school teacher. Journal of the All India Institute of Speech & Hearing, Vol. 28, 36-41.

Rajasudhakar, R. & Savithri, S. R. (2009). A method for quantifying voicing periods and short-term vocal recovery index in primary school teachers. Journal of Indian Speech & Hearing Association, Vol 28, 36-41.
Rajasudhakar, R. & Raju, S. H. (2008). Keratosis of the larynx. Journal of the All India Institute of Speech and Hearing, Vol. 27, 19-21.

Bagchi, A. & Rajasudhakar, R. (2007). Diversities among individuals with cluttering. Journal of All India Institute of Speech and Hearing, Vol. 26, 9-12.

Savithri, S. R., Jayaram, M., Venugopal, M. B. & Rajasudhakar, R. (2007). Base of articulation of 13 Indian languages. Journal of All India Institute of Speech and Hearing, Vol. 26, 23-27.
Rajasudhakar, R., Venugopal, M. B. & Goswami, S. P. (2006). Attitudes of Prospective, Elementary School Teachers and Special Educators on Children who stutter in School Situation. Journal of the Indian Speech and Hearing Association, Vol. 20, 7-14.

Venugopal, M. B., Rajasudhakar, R. & Goswami, S. P. (2006). Foix-Chavany-Marie-Syndrome – A case study. Journal of the Indian Speech and Hearing Association, Vol. 20, 15-20.
Venugopal, M.B., Rajasudhakar, R. & Savithri, S. R. (2005). Maximum Phonation Duration and S/Z ratio in Dravidian children. Journal of the Indian Speech and Hearing Association, Vol. 19, 47-51.
Rajasudhakar, R., Venugopal, M. B. & Goswami, S. P. (2004). Lexical Generative Naming Task in Children with Learning Disability. Journal of the Indian Speech and Hearing Association, Vol. 18, 86-91.

International journal:

1.Krishna Yeshoda, & Rathinaswamy Rajasudhakar. Effects of Occupational Risk Factors on Subjective Vocal Aerodynamic Measures in Teachers. Indian Journal of Otolaryngology and Head Neck Surgery. 2022. https://doi.org/10.1007/s12070-022-03136-8
2.Ansuya, M., Kumari, D, S. & Rajasudhakar, R. (2022). Readiness among medical interns for inter-professional collaboration with speech language pathologists. International Journal of Multidisciplinary Research and Development. Vol 9 (6), 6-11.
3.Yeshoda, K. & Rajasudhakar, R. (in Press). Acoustic characteristics of voice in Teachers and non-teachers. Journal of Voice. DOI: 10.1016/j.jvoice.2023.09.019.
4.Bhowmick, N., Bansode, S., Jadhao, H., Goel, S. and Rathinaswamy, R. (2024). Impact of Intralesional steroid injection in a case of postintubation subglottic granuloma. International Journal of Phonosurgery and Laryngology, Vol 13, (2), 32.-34.

Dec 2020 - Present: Associate Professor, Department of Speech-Language Sciences, All India Institute of Speech & Hearing, Mysore-06.
July 2016 – Nov 2020: Reader in Speech Sciences, Department of Speech-Language Sciences, All India Institute of Speech & Hearing, Mysore-6.May 2010 - June 2016: Lecturer in Speech Sciences, Department of Speech-Language Sciences, All India Institute of Speech & Hearing, Mysore
Aug 2007 - May 2010: Junior Research Fellow, All India Institute of Speech & Hearing, Mysore.
Nov 2006 - July 2007: Lecturer, Dr. M. V. Shetty College of Speech & Hearing, Mangalore.
Aug 2006 - Oct 2006: Lecturer, Institute of Speech & Hearing, MMC & RI, Kancheepuram, Tamil Nadu.
July 2005 - June 2006: Research Officer, Dept. of Speech-Language Sciences, AIISH, Mysore.
Worked in the area of Voice Sciences- Ph.D Thesis on ‘Voicing periods in daily and weekly speech of primary school teachers: Occupational voice measurements (time dose)’ under the guidance of Dr. S. R. Savithri