Title :
On the use of wavelet and Fourier transforms for speaker verification
Author :
Badri, N. ; Benlahouar, A. ; Tadj, C. ; Gargour, C. ; Ramachandran, Vivek
Author_Institution :
Electr. Eng. Dept., Ecole de Technol. Super., Montreal, Que., Canada
Abstract :
In this paper, we investigate the use of the wavelet transform for text-dependent speaker verification task. An extensive experimental framework have been conducted using several approaches: (a) a fixed structure wavelet transform, (b) an adaptive wavelets scheme according to a given criterion and finally (c) a best basis according to the best wavelets packet transform. A speaker dependent library tree has been built, corresponding to the best structure for a given speaker. Finally, (d) a fusion of information combining wavelets and Fourier. Experiments have been conducted using 60 speakers, extracted from Yoho Database and a phone-based HMM speaker verification system. Results have been compared with MFCC features.
Keywords :
Fourier transforms; hidden Markov models; speaker recognition; wavelet transforms; Fourier Transform; HMM speaker verification system; Packet Transform; Yoho Database; adaptive wavelets scheme; speaker verification; text-dependent task; wavelet transform; Continuous wavelet transforms; Data mining; Discrete cosine transforms; Feature extraction; Fourier transforms; Mel frequency cepstral coefficient; Speaker recognition; Speech recognition; Wavelet packets; Wavelet transforms;
Conference_Titel :
Circuits and Systems, 2002. MWSCAS-2002. The 2002 45th Midwest Symposium on
Print_ISBN :
0-7803-7523-8
DOI :
10.1109/MWSCAS.2002.1187043
