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Dr. P. Vijayalakshmi is Professor and Head of the Department of Electronics and Communication Engineering at SSN College of Engineering. She holds a B.E. in Electronics and Communication Engineering with First Class and Distinction from Bharathidasan University, an M.E. in Communication Systems from the Regional Engineering College, Trichy (now National Institute of Technology, Trichy), and a Ph.D. from the Indian Institute of Technology Madras specializing in speech recognition and analysis. As a doctoral trainee, she contributed to the “Speech Recognition and Analysis” project at the National Institute of Scientific Research (INRS-EMT), Montreal, Canada, under Prof. Douglas O’Shaughnessy. With over 30 years of teaching and research experience focused on speech signal processing, she has supervised 25 M.E. theses, 20 undergraduate projects, and currently guides five full-time Ph.D. scholars as a recognized Anna University supervisor. She established the Speech and Language Technologies Lab at SSNCE.
Her research specializes in speech signal processing, speech synthesis, speech recognition, and speech-enabled assistive technologies for individuals with speech disorders such as hypernasality, dysarthria, and cerebral palsy. Dr. Vijayalakshmi has over 150 publications in refereed journals like IEEE/ACM Transactions on Audio, Speech, and Language Processing, Computer Speech and Language, and IET Signal Processing, plus IEEE and ISCA conferences. Notable papers include “Acoustic Analysis and detection of hypernasality using group delay function” (IEEE Transactions on Biomedical Engineering, 2007), “Multi-level single-channel speech enhancement using a unified framework for estimating magnitude and phase spectra” (IEEE/ACM TASLP, 2020), and “A Weighted Speaker-Specific Confusion Transducer Based Augmentative and Alternative Speech Communication Aid for Dysarthric Speakers” (IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2019). She authored two book chapters in De Gruyter’s Speech Technology series and holds patents including “Hidden Markov model-based sign language-to-speech conversion system in Tamil” (Patent no. 530321). She completed 15 government-funded projects worth over ₹4.6 crores from MeiTy, DST-TIDE, and AICTE. Awards include IEEE MAS Best Researcher Award (2024), Senior Member IEEE (2016), IEEE Signal Processing Society membership, and IETE Fellowship. She is Area Chair for INTERSPEECH in speech and language processing for health.