Work place: Department of Computer Science and Application, Utkal University, Bhubaneswar, Odisha, India
E-mail: sangham1@rediffmail.com
Website:
Research Interests: Data Structures and Algorithms, Image Processing, Image Manipulation, Image Compression, Computational Science and Engineering
Biography
Prof. (Dr.) Sanghamitra Mohanty is the Professor of Computer Science and Application, Utkal University, Bhubaneswar,. Odisha, India. Her research interests are Speech Processing, Image processing and Natural Language Processing. She has published more than 150 papers in International Journals and Conferences. She has guided many Ph. D. students and has 10 IPRs to her credit. She was also the former Vice Chancellor of North Odisha University, Baripada. She has received the Samanta Chandrasekhar Award for the year 2012.
By Sanghamitra Mohanty Basanta Kumar Swain
DOI: https://doi.org/10.5815/ijigsp.2015.10.04, Pub. Date: 8 Sep. 2015
In this research paper, we have developed a system that identifies users by their voices and helped them to retrieve the information using their voice queries. The system takes into account speaker identification as well as speech recognition i.e. two pattern recognition techniques in speech domain. The conglomeration of speaker identification task and speech recognition task provides multitude of facilities in comparison to isolated approach. The speaker identification task is achieved by using SVM where as speech recognition is based on HMM. We have used two different types of corpora for training the system. Gamma tone cepstral coefficients and mel frequency cepstral coefficients are extracted for speaker identification and speech recognition respectively. The accuracy of the system is measured from two perspective i.e. accuracy of speaker identity and accuracy of speech recognition task. The accuracy of the speaker identification is enhanced by adopting the speech recognition at the initial stage of speaker identification.
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