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Communication SystemsPCM & Multiplexing

A PCM voice channel is sampled at 8 kHz using 8 bits per sample. For 24 such channels multiplexed without overhead, the aggregate bit rate is?

  • A64 kbps
  • B192 kbps
  • C1.024 Mbps
  • D1.536 Mbps
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Correct Answer: D. 1.536 Mbps
Explanation: Each channel is 8k×8=64 kbps. For 24 channels, 24×64 kbps=1.536 Mbps.
Reference: Standard communication systems: pcm & multiplexing
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