Faculty At Electronics And Communication Department



Gayadhar Pradhan
Gayadhar Pradhan
Associate Professor
Basic Information Research Interest:-Speech Analysis; Speech Enhancement; Speech Recognition; Keyword Spotting; Speaker and Language Recognition; Bio-Medical Signal Processing; Efficient Hardware Architectures for Speech Processing Algorithms
Email :- gdp@nitp.ac.in
Phone :-303

Subjects Teaching in Department
  1. Adaptive Signal Processing (UG)
  2. Voice and Video Processing (UG)
  3. Signals and System Analysis (UG)
  4. Speech Processing and Applications (PG)
  5. Probability, Random Variables and Stochastic Processes(PG)
Educational Qualification
  1. Ph. D. - IIT Guwahati
  2. M. Tech - IIT Guwahati
    Memberships & Society
    1. Member, International Speech Communication Association(ISCA)
    2. Senior Member, IEEE
      Past Administrative Responsibility
      1. Head of the Department, ECE, NIT Patna (April 2016-March 2019)
      2. Professor In-Charge, Computer Centre, NIT Patna. (April 2014-April 2016)
      3. Nodal Officer, National Knowledge Network (NKN) Project, NIT Patna. (April 2014-April 2016)
      4. Ph.D. Coordinator, Department of ECE, NIT Patna. (Nov. 2013-March 2016)
        Work Experiences
        1. Eleven Years (Teaching)
          Journals
          1. M. S. Fahad, A. Deepak, G. Pradhan and J. Yadav, DNN-HMM-based Speaker-Adaptive Emotion Recognition Using MFCC and Epoch-based Features. Circuits, Systems and Signal Processing. , Jun. - 2020,.
          2. S. Garnaik, A. Kumar, G. Pradhan and K. Sethi, An Efficient Approach for Detecting Vowel Onset and Offset Points in Speech Signal. International Journal of Speech Technology. , Jun. - 2020,.
          3. P. Singh and G. Pradhan, A New ECG Denoising Framework Using Generative Adversarial Network. IEEE Transactions on Computational Biology and Bioinformatic. , Feb. - 2020 ,.
          4. N. Srinivas, G. Pradhan and D. Govind, A Simplified Realization of Zero Frequency Filter for Hardware Implementation. Circuits, Systems and Signal Processing. , Feb - 2020,.
          5. N. Srinivas, P. Singh and G. Pradhan, A Novel Hardware Architecture for Non-Local Means Adaptive Filter. National Academy Science Letters. , Jan - 2020,.
          6. I. C. Yadav and G. Pradhan, Significance of Pitch-based Spectral Normalization for Children’s Speech Recognition. IEEE Signal Processing Letters. , Dec. - 2019,.
          7. N. Srinivas, G. Pradhan and P. K. Kumar, A Classification-based Non-Local Means Adaptive Filtering for Speech Enhancement and its FPGA Prototype. Circuits, Systems and Signal Processing . , Sep. - 2019,.
          8. B. Pattanayak, J. K. Rout and G. Pradhan, Adaptive spectral smoothening for development of robust keyword spotting system. IET Signal Processing. , Apr. - 2019,.
          9. A. Kumar, G. Pradhan, and S. Shahnawazuddin, An Adaptive Method for Robust Detection of Vowels in Noisy Environment. Circuits, Systems and Signal Processing . , Jan. - 2019,.
          10. S. Shahnawazuddin, K. Maity and G. Pradhan, Improving the Performance of Keyword Spotting System for Children’s Speech through Prosody Modification. Digital Signal Processing . , Jan. - 2019,.
          11. I. C. Yadav, S. Shahnawazuddin and G. Pradhan, Addressing Noise and Pitch Sensitivity of Speech Recognition System through Variational Mode Decomposition based Spectral Smoothing. Digital Signal Processing . , Jan. - 2019,.
          12. M. S. Prabhu, P. K. Nayak and G. Pradhan, Detection of three-phase fault during power swing using zero frequency filtering. International Transactions on Electrical Energy Systems . , Sept. - 2018,.
          13. N. Srinivas, G. Pradhan and P. K. Kumar, Detection of vowel-like speech : an efficient hardware architecture and it’s FPGA prototype. Microsystem Technologies . , Oct. - 2018,.
          14. P. Singh and G. Pradhan, Variational mode decomposition based ECG denoising using non-local means and wavelet domain filtering. Australasian Physical and Engineering Sciences in Medicine. , Sept. - 2018,.
          15. N. Srinivas, G. Pradhan and P. K. Kumar, An Efficient Hardware Architecture for Detection of Vowel-Like Regions in Speech Signal. Integration the VLSI Journal . , Sept. - 2018,.
          16. S. Shahnawazuddin, N. Adiga, H. K Kathania, G. Pradhan and R. Sinha, Studying the Role of Pitch-Adaptive Spectral Estimation and Speaking-Rate Normalization in Automatic Speech Recognition. Digital Signal Processing . , Aug. - 2018,.
          17. A. Kumar and G. Pradhan, Detection of Vowel Onset and Offset Points Using Non-Local Similarity Between DWT Approximation Coefficients. IET Electronics Letters. , May - 2018,.
          18. S. Shahnawazuddin, C. Singh, H. K. Kathania, W. Ahmad and G. Pradhan, An Experimental Study on the Significance of Variable Frame-Length and Overlap in the Context of Children’s Speech Recognition. Circuits, Systems and Signal Processing . , May - 2018,.
          19. P. Singh, S. Shahnawazuddin and G. Pradhan, An Efficient ECG Denoising Technique based on Non-local Means Estimation and Modified Empirical Mode Decomposition. Circuits, Systems and Signal Processing . , Oct. - 2018,.
          20. S. Shahnawazuddin, R. Sinha and G. Pradhan, Pitch-Normalized Acoustic Features for Robust Children’s Speech Recognition. IEEE Signal Processing Letters. , Aug. - 2017,.
          21. P. Singh, G. Pradhan and S. Shahnawazuddin, Denoising of ECG signal by non-local estimation of approximation coefficients in DWT. Biocybernetics and Biomedical Engineering . , June - 2017,.
          22. A. Kumar, S. Shahnawazuddin and G. Pradhan, Improvements in the Detection of Vowel On- set and Offset Points in a Speech Sequence. Circuits, Systems and Signal Processing . , June - 2016,.
          23. G. Pradhan and S. R. M. Prasanna, Speaker verification by vowel and nonvowel like segmentation. IEEE Trans. Audio, Speech and Language Processing. , April - 2013,.
          24. Haris B. C, G. Pradhan, A. Misra, S. R. M. Prasanna, R. K. Das, and R. Sinha, Multivariability speaker recognition database in Indian scenario. International Journal of Speech Technology . , March - 2012,.
          25. G. Pradhan, Haris B. C, S. R. M. Prasanna, and R. Sinha, Speaker verification in sensor and acoustic environment mismatch conditions. International Journal of Speech Technology . , June - 2012,.
          26. G. Pradhan and S. R. M. Prasanna, Speaker verification under degraded condition : a perceptual study. International Journal of Speech Technology . , Oct. - 2011,.
          27. S. R. M. Prasanna and G. Pradhan, Significance of Vowel-Like Regions for Speaker Verification under Degraded Condition. IEEE Trans. Audio, Speech, and Language Processing. , Nov. - 2011,.
            International Conferences
            1. S. Biswas, P. K. Nayak and G. Pradhan, An EMD-DT Assisted Intelligent Protection Scheme for TCSC Compensated Transmission Lines, IEEE Power and Energy Society (PES) General Meeting.  Montreal, Canada, Aug. - 2020, .
            2. S. Garnaik, N. Srinivas, G. Pradhan and K. Sethi, Detection of vowels in continuous speech using variation of short-term magnitude spectra, TENCON.  Kochi, India,Oct. - 2019, .
            3. Ramarao D., C. Singh, S. Shahnawazuddin, N. Adiga and G. Pradhan, Detecting Developmental Dysphasia in Children Using Speech Data, International Conference on Signal Processing and Communications (SPCOM).  Bangalore, India,July - 2018, .
            4. S. Shahnawazuddin, H. Kathania, C. Singh, W. Ahmad and G. Pradhan, Exploring the Role of Speaking-Rate Adaptation on Children’s Speech Recognition, International Conference on Signal Processing and Communications (SPCOM).  Bangalore, India,July - 2018, .
            5. P. Singh and G. Pradhan, Exploring the Non-Local Similarity Present in Variational Mode Functions for Effective ECG Denoising, International Conference on Acoustics, Speech and Signal Processing (ICASSP).  Calgary, Alberta, Canada,April - 2018, .
            6. I. C. Yadav, S. Shahnawazuddin, D. Govind and G. Pradhan, Spectral Smoothing by Variational Mode Decomposition and its Effect on Noise and Pitch Robustness of ASR System, International Conference on Acoustics, Speech and Signal Processing (ICASSP).  Calgary, Alberta, Canada,April - 2018, .
            7. P. Singh and G. Pradhan, Significance of Non-Local Means Estimation in DWT Based ECG Signal Denoising, International Conference on Signal Processing and Integrated Networks (SPIN).  Noida, India,Feb. - 2018, .
            8. N. Srinivas, G. Pradhan and P. K. Kumar, FPGA Implementation of Zero Frequency Filter, Conference on Information and Communication Technology.  Jabalpur, India,Oct. - 2018, .
            9. I. C. Yadav, A. Kumar, S. Shahnawazuddin, G. Pradhan, Non-Uniform Spectral Smoothing for Robust Children’s Speech Recognition, Interspeech.  Hyderabad, India,Sept. - 2018, .
            10. S. Sakshi, A. Kumar, G. Pradhan,, Analysis of Variational Mode Functions for Robust Detection of Vowels, Interspeech.  Hyderabad, India,Sept. - 2018, .
            11. N. Srinivas, G. Pradhan and S Shahnawazuddin, Enhancement of Noisy Speech Signal by Non-Local Means Estimation of Variational Mode Functions, Interspeech.  Hyderabad, India,Sept. - 2018, .
            12. A. Kumar, S. Shahnawazuddin and G. Pradhan, Detection of Vowel Offset Points Using Non-Local Similarity Between Speech Samples, International Conference on Signal Processing and Communications (SPCOM).  Bangalore, India,July - 2018, .
            13. B. T. Sai, I. C. Yadav, S. Shahnawazuddin and G. Pradhan, Enhancing Pitch Robustness of Speech Recognition System Through Spectral Smoothing, International Conference on Signal Processing and Communications (SPCOM).  Bangalore, India,July - 2018, .
            14. Pratik, S. Shahnawazuddin and G. Pradhan, Significance of Modified Empirical Mode Decomposition for ECG Denoising, Engineering in Medicine and Biology Society (EMBC).  ,July - 2017, .
            15. A. Kumar, S. Shahnawazuddin and G. Pradhan, Non-Local Estimation of Speech Signal for Vowel Onset Point Detection in Varied Environments, Interspeech.  Stockholm, Sweden,Aug. - 2017, .
            16. G. Pradhan, A. Kumar and S. Shahnawazuddin, Excitation Source Features for Improving the Detection of Vowel Onset and Offset Points in a Speech Sequence, Interspeech.  Stockholm, Sweden,Aug. - 2017, .
            17. W. Ahmad, S. Shahnawazuddin, H. K. Kathania, G. Pradhan and A. B. Samaddar, Improving Children’s Speech Recognition through Explicit Pitch Scaling based on Iterative Spectrogram Inversion, Interspeech.  Stockholm, Sweden,Aug. - 2017, .
            18. Nagapuri Srinivas, Gayadhar Pradhan, Puli Kishore Kumar, Low Latency Architecture Design and Implementation for Short-Time Fourier Transform Algorithm on FPGA, International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS).  Tel Aviv, Israel,Nov. - 2017, .
            19. A. Verma, Pratik and G. Pradhan, Electrocardiogram Denoising using Wavelet Decomposition and EMD domain filtering, TENCON.  ,Nov. - 2016, .
            20. A. Kumar, S. Shahnawazuddin and G. Pradhan, Noise Robustness of Different Front-end Features for Detection of Vowels in Speech Signals, TENCON.  ,Nov. - 2016, .
            21. H. Kathania, S. Shahnawazuddin, G. Pradhan and A. B. Samaddar, Experiments on Children’s Speech Recognition under Acoustically Mismatched Conditions, TENCON.  ,Nov. - 2016, .
            22. S Shahnawazuddin, Deepak K. T., G. Pradhan and Rohit Sinha, Enhancing Noise and Pitch Robustness of Children’s ASR, International Conference on Acoustics, Speech and Signal Processing (ICASSP).  New Orleans,March - 2016, .
            23. Haris B. C, G. Pradhan, R. Sinha and S. R. M. Prasanna, The IITG Speaker Verification System for NIST SRE 2012, International Conference on Acoustics, Speech and Signal Processing (ICASSP).  Vancouver, Canada,May - 2013, .
            National Conferences
            1. N. Srinivas, G. Pradhan and P. K. Kumar, Detection of Vowel-Like Speech Using Variance of Sample Magnitudes, National Conference on Communications (NCC).  Indian Institute of Science, Bangalore, India,Feb. - 2019, .
            2. A. Kumar, S. Garnaik, I. C. Yadav, G. Pradhan and S. Shahnawazuddin, Detection of Vowels in Speech Signals Degraded by Speech-Like Noise, National Conference on Communications (NCC).  Indian Institute of Science, Bangalore, India,Feb. - 2019, .
            3. N. Srinivas, G. Pradhan and P. K. Kumar, Detection of Vowel-Like Speech Using Variance of Sample Magnitudes, National Conference on Communications (NCC).  IISc, Bangalore,Feb. - 2019, .
            4. A. Kumar, S. Garnaik, I. C. Yadav, G. Pradhan and S. Shahnawazuddin, Detection of Vowels in Speech Signals Degraded by Speech-Like Noise, National Conference on Communications (NCC).  IISc, Bangalore,Feb. - 2019, .
            5. A. Kumar, S. Shahnawazuddin and G. Pradhan, Exploring Different Acoustics Modeling Techniques for the Detection of Vowels in Speech Signal, National Conference on Communications.  Indian Institute of Technology Guwahati, Guwahati, India,March - 2016, .
            6. Ramesh K, G. Pradhan, and S. R. M. Prasanna, Analysis of Glottal Signals for Speaker Information, National Conference on Communications.  Indian Institute of Technology Delhi, Delhi, India,Feb. - 2013, .
            7. Haris B. C, G. Pradhan, A. Misra, S. Shukla, R. Sinha, and S. R. M. Prasanna, Multi- variability speech database for robust speaker recognition, National Conference on Communications.  Indian Institute of Science, Bangalore, India,Jan. - 2011, .
            8. G. Pradhan and S. R. M. Prasanna, Significance of Speaker Information in Wideband Speech, National Conference on Communications.  Indian Institute of Science, Bangalore, India,Jan. - 2011, .
            9. G. Pradhan and S. R. M. Prasanna, Speaker verification under degraded condition using vowel and non-vowel like regions, Centenary Conference, Electrical Engineering.  Indian Institute of Science, Bangalore, India,Dec. - 2011, .
            Projects
            1. Development of Algorithms for Speech based Bilingual Keyword Search to Detect Fraud/Spam Calls; Status: Completed ; Funding Agency: MeitY; Sanctioned Amount: 41.1 Lakh; (PI)
            Phd Students
            1. Biswaranjan Pattanayak - Pitch and Speaking Rate Normalization for Development of Children’s KWS System ( Jan.2019 - Continue).
            2. Jayant Kumar Rout - Development of Robust KWS System ( Aug.2018 - Continue).
            3. Laxmi Priya Sahu - Development of Speaker Verification System in Noisy and Limited Data Conditions ( Mar.2017 - Continue).
            4. Ishwar Chandra Yadav - Role of Pitch and Speaking Rate Normalization for Development of Children’s ASR ( Jul.2015 - Continue).
            5. Pratik - ECG Signal Denoising and its Significance in Heartbeat Classification for Arrhythmia Detection ( Sep.2015 - Mar.2019 ).
            6. Nagapuri Srinivas - Efficient Methods and Hardware Architectures for Detection of Vowel-Like Speech ( Aug.2015 - Feb.2019 ).
            7. Avinash kumar - Robust Detection of Vowels with Application to Children’s ASR ( Aug.2014 - Jan.2019 ).