The bit rate for a signal, which has a sampling rate of 8 kHz and where 16 quantisation levels have been used is
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A
If n is the number of bits per sample, then number of quantisation level = 2 n
Since the number of quantisation level is 16
⇒ ⇒ 2 n = 16 ⇒ ⇒ n = 4
∴ ∴ bit rate = sampling rate × × no. of bits per sample
= 8000 × × 4 = 32,000 bits / sec .
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