Ex (5):-. A compact disc (CD) records audio signal digitally by using PCM. Assume the audio signal bandwidth to be 15 kHz. (a) What is the Nyquist rate? (b) If the Nyquist samples are quantized into L = 65536 levels and then binary coded, determine the number of binary digits required to encode a sample. (c) Determine the number of binary digits per second (bit/s) required to encode the audio signal. (d) For practical reasons, signals are sampled at a rate well above the Nyquist rate. Practical CDs use 44,100 samples per second. If L 65536, determine the number of bits per second required to encode the signal.
Ex (5):-. A compact disc (CD) records audio signal digitally by using PCM. Assume the audio signal bandwidth to be 15 kHz. (a) What is the Nyquist rate? (b) If the Nyquist samples are quantized into L = 65536 levels and then binary coded, determine the number of binary digits required to encode a sample. (c) Determine the number of binary digits per second (bit/s) required to encode the audio signal. (d) For practical reasons, signals are sampled at a rate well above the Nyquist rate. Practical CDs use 44,100 samples per second. If L 65536, determine the number of bits per second required to encode the signal.
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Transcribed Image Text:Ex (5):-. A compact disc (CD) records audio signal digitally by using PCM. Assume the audio signal
bandwidth to be 15 kHz.
(a) What is the Nyquist rate?
3
(b) If the Nyquist samples are quantized into L= 65536 levels and then binary coded, determine the
number of binary digits required to encode a sample.
(c) Determine the number of binary digits per second (bit/s) required to encode the audio signal.
(d) For practical reasons, signals are sampled at a rate well above the Nyquist rate. Practical CDs use
44,100 samples per second. If L = 65536, determine the number of bits per second required to encode
the signal.
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