DocumentCode
1008998
Title
Switched predictor adaptation of DPCM-AQB speech coder using an imbedded vector quantisation
Author
Ramamoorthy, V.
Author_Institution
University of Linköping, Department of Electrical Engineering, Linköping, Sweden
Volume
21
Issue
10
fYear
1985
Firstpage
442
Lastpage
444
Abstract
An adaptive differential pulse-code-modulation speech coder with a switched predictor adaptation scheme is described. The predictor adaptation is done by switching one of the several predetermined predictors stored both at the encoder and the decoder. The selection of the predictor is controlled by a vector quantiser. The tradeoff between the performance and the extra side information that needs to be transmitted is evaluated for bit rates of 16, 24 and 32 Kbit/s.
Keywords
encoding; filtering and prediction theory; pulse-code modulation; speech analysis and processing; adaptive differential pulse-code-modulation; bit rates; imbedded vector quantisation; side information; speech coder; switched predictor adaptation scheme;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19850315
Filename
4251220
Link To Document