DocumentCode
919484
Title
Multiple delta modulation of a speech signal
Author
Jayant, N.S. ; Shipley, K.
Author_Institution
Bell Telephone Labs., Murray Hill, N. J.
Volume
59
Issue
9
fYear
1971
Firstpage
1382
Lastpage
1382
Abstract
A speech signal was passed through a cascade of identical delta modulators. Signal degradation (as a function of the number of delta modulations I) was initially more rapid when the delta modulation was adaptive (ADM) than if it was linear (LDM). However, the rate of degradation was nearly constant in LDM, while for ADM it decreased monotonically with I (as in PCM); and at I=6, the ADM still maintained a significant SNR advantage.
Keywords
Band pass filters; Computer simulation; Degradation; Delta modulation; Encoding; Equations; Low pass filters; Phase change materials; Speech; Statistics;
fLanguage
English
Journal_Title
Proceedings of the IEEE
Publisher
ieee
ISSN
0018-9219
Type
jour
DOI
10.1109/PROC.1971.8439
Filename
1450369
Link To Document