“…Instead of being used by themselves, the linear prediction coefficients were transformed into a set of robust, less correlated features such as, the linear prediction cepstral coefficients "LPCCs" [9], the perceptual linear prediction coefficients "PLP" [10], the perceptual linear predictive cepstral coefficients "PLPCC" [11][12][13][14][15] and the line spectral frequencies "LSF" [16] etc. In early 1980s, the so-called Mel-frequency cepstral coefficients "MFCCs" were introduced and yielded the best results compared to contemporary used features for speaker recognition [5,11]. One year later, the concept of dynamic features has been introduced to incorporate some temporal information to the extracted features [16,17].…”