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Communication SystemsPCM

Which pair represents commonly known companding laws used in digital telephony?

  • AA-law and mu-law
  • BOhm-law and Faraday-law
  • CKirchhoff-law and Coulomb-law
  • DShannon-law and Carson-law
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Correct Answer: A. A-law and mu-law
Explanation: A-law and mu-law are logarithmic companding characteristics used in PCM telephony systems.
Reference: Standard communication systems: pcm
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