Text-dependent speaker verification using classical LBG, adaptive LBG and FCM vector quantization


An important task of speaker verification is to generate speaker specific models and match an input speaker’s utterance with these models. This paper focuses on comparing the performance of text dependent speaker verification system using Mel Frequency Cepstral Coefficients feature and different Vector Quantization (VQ) based speaker modelling techniques to generate the speaker specific models. Speaker-specific information is mainly represented by spectral features and using these features we have developed the model which serves as an important entity for determining the claimed identity of the speaker. In the modelling part, we used Linde, Buzo, Gray (LBG) VQ, proposed adaptive LBG VQ and Fuzzy C Means (FCM) VQ for generating speaker specific model. The experimental results that are performed on microphonic database shows that accuracy significantly depends on the size of the codebook in all VQ techniques, and on FCM VQ accuracy also depend on the value of learning parameter of the objective function. Experiment results shows that how the accuracy of speaker verification system is depend on different representations of the codebook, different size of codebook in VQ modelling techniques and learning parameter in FCM VQ.

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Soni, B., Debnath, S. & Das, P.K. Text-dependent speaker verification using classical LBG, adaptive LBG and FCM vector quantization. Int J Speech Technol 19, 525–536 (2016). https://doi.org/10.1007/s10772-016-9346-4

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  • Text dependent speaker verification
  • VAD
  • MFCC
  • VQ
  • FCM