Title :
Application of reduced rate coding and speech interpolation to the DCS
Author :
Smith, David R. ; Orr, Robert A.
Author_Institution :
Defense Commun. Eng. Center, Reston, VA, USA
Abstract :
The authors provide engineering criteria for the application of reduced-rate coding (RRC) and speech-interpolation (SI) techniques to the defense communications system (DCS). These two technologies each offer a 2:1 compression of bit rate or bandwidth for transmission of voice channels. Compression via speech interpolation is achieved through the removal of the gaps and pauses which occur naturally in speech, while reduced-rate coding uses 32 kb/s coding instead of conventional 64 kb/s coding. A description of the performance in these two technologies is given and the application criteria for RRC/SI use in the DCS are developed
Keywords :
data compression; encoding; military systems; speech analysis and processing; voice communication; 32 kbit/s; compression; defense communications system; reduced-rate coding; speech-interpolation; voice channels; Bandwidth; Distributed control; Encoding; Interpolation; Modems; Phase change materials; Signal to noise ratio; Speech coding; Standards development; Testing;
Conference_Titel :
Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/MILCOM.1988.13367
