Special Issue Article Open Access

Gammatone Cepstral Coefficient for Speaker Identification

Abstract

Digital processing of speech signal and voice recognition algorithm is very important for fast and accurate automatic voice recognition technology. The voice is a signal of infinite information. A direct analysis and synthesizing the complex voice signal is due to too much information contained in the signal. Taking as a basis Mel frequency cepstral coefficients (MFCC) used for speaker identification and audio parameterization, the Gammatone cepstral coefficients (GTCCs) are a biologically inspired modification employing Gammatone filters with equivalent rectangular bandwidth bands. A comparison is done between MFCC and GTCC for speaker identification.Thier performance is evaluated using three machine learning methods neural network (NN) and support vector machine (SVM) and K-nearest neighbor (KNN). According to the results, classification accuracies are significantly higher when employing GTCC in speaker identification than MFCC.

Rahana Fathima, Raseena P E

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