DocumentCode
1103823
Title
On the use of discrete cosine transform in cepstral analysis
Author
Hassanein, H. ; Rudko, M.
Author_Institution
Communication Research Centre, Ottawa, Ont., Canada
Volume
32
Issue
4
fYear
1984
fDate
8/1/1984 12:00:00 AM
Firstpage
922
Lastpage
925
Abstract
If the original signal is defined to be symmetrical, the discrete Fourier transform (DFT) used in cepstral analysis can be replaced by a discrete cosine transform (DCT). This principle is applied to the evaluation of the real and complex pseudocepstrum of speech signals. In both the real and complex cepstrum cases, it is found that the use of the DCT does not degrade the information contained in the cepstrum while substantially reducing the computational complexity.
Keywords
Cepstral analysis; Cepstrum; Discrete Fourier transforms; Discrete cosine transforms; Fourier transforms; Signal analysis; Signal processing algorithms; Speech analysis; Speech processing; Transform coding;
fLanguage
English
Journal_Title
Acoustics, Speech and Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
0096-3518
Type
jour
DOI
10.1109/TASSP.1984.1164382
Filename
1164382
Link To Document