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FIPS 137, originally issued as FED-STD-1015, is a secure telephony speech encoding standard for Linear Predictive Coding vocoder developed by the United States Department of Defense and finished on November 28, 1984. It was based on the earlier STANAG 4198 promulgated by NATO on February 13, 1984.
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Explore the main themes, entities and connections around FIPS 137. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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standard codec fips 137 fed-std-1015 1984 processing 20 bit rate frame ms speech coding lpc-10 links vocoder nato mips ram
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