Journal of Computer Science

A New Speaker Recognition System with Combined Feature Extraction Techniques

M. G. Sumithra, K. Thanuskodi and A. Helen Jenifer Archana

DOI : 10.3844/jcssp.2011.459.465

Journal of Computer Science

Volume 7, Issue 4

Pages 459-465

Abstract

Problem statement: This study introduces a new method for speaker verification system by fusing two different feature extraction methods to improve the recognition accuracy and security. Approach: The proposed system uses Mel frequency cepstral coefficients for speaker identification and Modified MFCC for verification. For speaker modeling vector quantization is used. Results: The proposed system was investigated the effect of the different length segmental feature as well as speaker modeling for speaker recognition. The performance was evaluated against 1000 speakers for 10 different languages with duration of 10 sec for training the system and for testing 5 sec. duration samples were used. Conclusion/Recommendations: Experimental results of the proposed system showed that higher recognition accuracy of 93% is achieved by increasing the number of filter banks used for feature extraction method, more competitive with existing system using vector quantization with lesser computational complexity. The system efficiency may further be improved using other speaker modeling techniques like GMM, HMM.

Copyright

© 2011 M. G. Sumithra, K. Thanuskodi and A. Helen Jenifer Archana. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.