Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 6 (Q.No. 30)
30.
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. The number of quantization levels required to reduce the quantization noise by a factor of 4 would be
Answer: Option
Explanation:
To reduce quantization noise by 4
No. of levels should increase by 2
Thus 512 levels are required.
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