Work place: Gauhati University Institute of Science and Technology, Guwahati-781014, India
Research Interests: Engineering, Computational Engineering, Computational Science and Engineering
Archita Hore was born in India in 1990. She received the B.E. degree in Electronics and Telecommunication Engineering from Assam Engineering College, Guwahati, India in the year 2012 and obtained the M.Tech. degree in Signal Processing and VLSI from the Gauhati University Institute of Science and Technology (GUIST), Assam, India, in 2017. She joined as an Asst. Project Engineer at IIT, Guwahati in 2013. Currently, she is working as a Guest Faculty in the Dept. of ECE, GUIST, Assam.
DOI: https://doi.org/10.5815/ijigsp.2018.06.05, Pub. Date: 8 Jun. 2018
This work focuses on text dependent speaker verification system where a source feature specifically residual Mel frequency cepstral coefficients (RMFCC), has been extracted in addition to a vocal tract system feature namely Mel frequency cepstral coefficients (MFCC). The RMFCC features are derived from the LP residuals whereas MFCC features are derived from the cepstral analysis of the speech signal. Thus, these two features have different information about the speaker. A four cohort speaker’s set has been prepared using these two features and dynamic time warping (DTW) is used as the classifier. Performance comparison of the text dependent speaker verification model using MFCC and RMFCC features are enumerated. Experimental results shows that, using RMFCC feature alone do not give satisfactory results in comparison to MFCC. Also, the system’s performance obtained using the MFCC features, is not optimum. So, to improve the performance of the system, these two features are combined together using different combination algorithms. The proposed lowest ranking method yields good performance with an equal error rate (EER) of 7.50%. To further improve the efficiency of the system, the proposed method is combined along with the strength voting and weighted ranking method in the hierarchical combination method to obtain an EER of 3.75%.[...] Read more.
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