1.

A speech signal, band limited to 4kHz and peak voltage varying between + 5V and - 5V is sampled at the Nyquist rate. Each sample is quantized and represented by 8 bits. Assuming the signal to be uniformly distributed between its peak values, the signal to noise ratio at the quantizer output is

A. 156 dB
B. 32 dB
C. 48 dB
D. 64 dB
Answer» D. 64 dB


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