Presenting a New Text-Independent Speaker Verification System Based on Multi Model GMM

Subject Areas : B. Computer Systems Organization

Mohammad Mosleh ¹ , Faraz Forootan ² , Najmeh Hosseinpour ³

1 - Young Researchers and Elite club, Dezfoul Branch ,Islamic Azad University, Dezfoul, Iran
2 - Department of Computer Engineering, Dezfoul Branch, Islamic Azad University, Dezfoul, Iran
3 - Young Researchers and Elite club, Andimeshk Branch, Islamic Azad University, Andimeshk, Iran

Received: 2014-12-10 Accepted : 2014-12-10 Published : 2014-11-01

Keywords: Gaussian Mixture Model (GMM), Biometric attributes, speaker verification, Support Vector Machine (SVM), Decision Trees (DT), Ensemble Classifiers,

Abstract :

Speaker verification is the process of accepting or rejecting claimed identity in terms of its sound features. A speaker verification system can be used for numerous security systems, including bank account accessing, getting to security points, criminology and etc. When a speaker verification system wants to check the identity of individuals remotely, it confronts problems such as noise effect on speech signal and also identity falsification with speech synthesis. In this system, we have proposed a new speaker verification system based on Multi Model GMM, called SV-MMGMM, in which all speakers are divided into seven different age groups, and then an isolated GMM model for each group is created; instead of one model for all speakers. In order to evaluate, the proposed method has been compared with several speaker verification systems based on Naïve, SVM, Random Forest, Ensemble and basic GMM. Experimental results show that the proposed method has so better efficiency than others.