DocumentCode
968214
Title
An approach to parameter reoptimization in multipulse-based coders
Author
Fratti, M. ; Mian, G.A. ; Riccardi, G.
Author_Institution
Alcatel-Telettra, Milano, Italy
Volume
1
Issue
4
fYear
1993
fDate
10/1/1993 12:00:00 AM
Firstpage
463
Lastpage
465
Abstract
An algorithm for LPC parameter optimization in multipulse (MP)-linear-prediction-coding (LPC)-based speech coders is presented. It is shown that by taking the nature of the MP excitation signal into account in the LPC parameter computation, it is possible to improve the effectiveness of the LPC model. This results in a better quality of the reconstructed signal in terms of both objective and subjective criteria. The implementation details of the algorithm are discussed, and experimental results are presented. In particular, a comparison with standard MP LPC techniques is given
Keywords
linear predictive coding; optimisation; speech coding; LPC; MP excitation signal; algorithm; linear prediction coding; multipulse-based coders; parameter reoptimization; reconstructed signal quality; speech coding; Bit rate; Equations; Filters; High performance computing; Linear predictive coding; Multiple signal classification; Signal processing; Signal reconstruction; Signal synthesis; Speech coding;
fLanguage
English
Journal_Title
Speech and Audio Processing, IEEE Transactions on
Publisher
ieee
ISSN
1063-6676
Type
jour
DOI
10.1109/89.242492
Filename
242492
Link To Document