Question
Nyquist’s theorem
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Posted: 17 Jul 11 16:41 Number of bids: 0 |
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Question:
I have been looking for a solution, please help solve the question:
“Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8KHz using 256 quantisation levels”. Briefly outline how this scheme works and, by reference to Nyquist’s theorem, explain how the sampling rate was chosen.
“Pulse Code Modulation (PCM), as used in telephony, samples a signal at 8KHz using 256 quantisation levels”. Briefly outline how this scheme works and, by reference to Nyquist’s theorem, explain how the sampling rate was chosen.
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