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Discussion :: Communication Systems

  1. In a CD the sampling frequency is nearly

  2. A.
    half the highest frequency in audio signal
    B.
    equal to highest frequency in audio signal
    C.
    double the highest frequency in audio signal
    D.
    four times the highest frequency in audio signal

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    Answer : Option C

    Explanation :

    For proper sampling and faithful reproduction sampling frequency must be at least twice the highest frequency in the signal.


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