DocumentCode :
753888
Title :
Bit Rate Per Channel Halving in PCM Multiplexes by Speech Interpolation and Adaptive Quantization
Author :
Molinari, Alcide M. ; Vagliani, Federico C.
Author_Institution :
Telettra S.p.A., Italy
Volume :
26
Issue :
5
fYear :
1978
fDate :
5/1/1978 12:00:00 AM
Firstpage :
638
Lastpage :
646
Abstract :
An all digital system, labeled PCM.RR. is presented, which enables the doubling of traffic capacity of PCM links. This is obtained, although keeping the transmission quality impairment very close to the normal PCM standards, by properly using "Adaptive Quantization" and "Speech Interpolation" performed by means of a "Speech Detector" that works directly on the 
-law compressed digital signal.
-law compressed digital signal.Keywords :
Adaptive coding; PCM communication; Speech coding; Speech transmission; Time-division multiplexing; Analog-digital conversion; Bit rate; Digital modulation; Digital systems; Helium; Interpolation; Phase change materials; Quantization; Speech; Time division multiplexing;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/TCOM.1978.1094132
Filename :
1094132
Link To Document :
