Title :
Speech recognition system using adapted local trigonometric transforms
Author :
Chang, Sungwook ; Kwon, Y. ; Yang, Sung-il
Author_Institution :
Dept. of Control & Instrum. Eng., Hanyang Univ., Seoul, South Korea
Abstract :
We propose a new speech feature extracted from adapted local trigonometric transforms. We decompose speech signal through adapted local trigonometric transforms. And we classify the decomposed signal by M uniform subbands to each subinterval. The energy of each subband is used as speech features. This feature is applied to VQ and HMM
Keywords :
adaptive signal processing; feature extraction; hidden Markov models; signal classification; speech recognition; transforms; vector quantisation; HMM; M uniform subbands; VQ; adapted local trigonometric transforms; decomposed signal; feature extraction; speech features; speech recognition system; Control systems; Cost function; Discrete cosine transforms; Hidden Markov models; Instruments; Signal processing algorithms; Speech analysis; Speech recognition; Wavelet analysis; Wavelet transforms;
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1998. Proceedings of the IEEE-SP International Symposium on
Conference_Location :
Pittsburgh, PA
Print_ISBN :
0-7803-5073-1
DOI :
10.1109/TFSA.1998.721385
