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Full PCM Process
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Sampling Rate
o The accuracy of any digital reproduction
of an analog signal depends upon
the
o. of samples taken
o How many samples are sufficient?
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o
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<Nyquist
theorem>
ƒ The sapling rate must be at least twice
the highest
frequency
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Bit Rate
o Sampling Rate given by Nyquist Theorum
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VU
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o No.
of bits per
sample chosen according
to the Precision
needed at the
receiver
end.
BitRate = SamplingRate× No.ofbits
/ sample
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