DocumentCode
1005489
Title
ADPCM using vector predictor and forward adaptive quantiser with step-size prediction
Author
Wong, K.H.J. ; Steele, R.
Author_Institution
University of Southampton, Department of Electronics & Information Engineering, Southampton, UK
Volume
21
Issue
2
fYear
1985
Firstpage
74
Lastpage
75
Abstract
An adaptive differential pulse code modulation (ADPCM) system is described having a set of fixed vector predictors, and a quantiser that is adapted in the forward direction with the distinction that its step size is predicted from previous values. SNR gains compared to DPCM-AQF are presented for bit rates of 16, 24 and 32 kbit/s.
Keywords
analogue-digital conversion; encoding; pulse-code modulation; SNR gains; adaptive differential pulse code modulation; encoding; fixed vector predictors; forward adaptive quantiser; step-size prediction;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19850051
Filename
4250859
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