TY  - JOUR
AU  - Mporas, Iosif 
AU  - Ganchev, Todor 
AU  - Siafarikas, Mihalis 
AU  - Fakotakis, Nikos 
PY  - 2007
TI  - Comparison of Speech Features on the Speech Recognition Task
JF  - Journal of Computer Science
VL  - 3
IS  - 8
DO  - 10.3844/jcssp.2007.608.616
UR  - https://thescipub.com/abstract/jcssp.2007.608.616
AB  - In the present work we overview some recently proposed discrete Fourier transform (DFT)- and discrete wavelet packet transform (DWPT)-based speech parameterization methods and evaluate their performance on the speech recognition task. Specifically, in order to assess the practical value of these less studied speech parameterization methods, we evaluate them in a common experimental setup and compare their performance against traditional techniques, such as the Mel-frequency cepstral coefficients (MFCC) and perceptual linear predictive (PLP) cepstral coefficients which presently dominate the speech recognition field. In particular, utilizing the well established TIMIT speech corpus and employing the Sphinx-III speech recognizer, we present comparative results of 8 different speech parameterization techniques.