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Frequency at which VOICE is sampled is?
a) 4 KHz
b) 8 KHz
c) 16 KHz
d) 64 KHz
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Answer Posted / vinit92
the voice signals have a bandwidth of 4Khz (300hz-3400hz
signal bandwidth + 450*2hz guard bands= 4000hz) according to
Nyquist criteria, the sampling rate must be at least double
of this total bandwith. thus sampling rate= 2*4Khz = 8Khz.
this is the reuired sampling rateto avoid loss of voice
signals in transmission.
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