DocumentCode
755673
Title
A modified CELP model with computationally efficient adaptive codebook search
Author
de Silva, L.M. ; Alcaim, Abraham
Author_Institution
CETUC-PUCA, Rio de Janerio, Brazil
Volume
2
Issue
3
fYear
1995
fDate
3/1/1995 12:00:00 AM
Firstpage
44
Lastpage
45
Abstract
In this letter, we propose a CELP algorithm in which the complexity of the search procedure in the adaptive codebook is greatly reduced. This is achieved by means of a modified model of the CELP synthesizer, while keeping the usual perceptual weighting of the synthesis error in the analysis procedure. Simulation results show that the proposed algorithm can provide speech quality comparable to the one obtained with the conventional CELP codec.<>
Keywords
adaptive codes; error analysis; linear predictive coding; search problems; speech codecs; speech coding; speech synthesis; analysis procedure; computationally efficient adaptive codebook search; conventional CELP codec; modified CELP model; perceptual weighting; speech quality; synthesis error; Adaptive filters; Computational modeling; Delay; Error analysis; Filtering; Nonlinear filters; Speech analysis; Speech processing; Speech synthesis; Synthesizers;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/97.372912
Filename
372912
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