Sampling and Reconstruction

$\scalebox{0.8}{\includegraphics{eps/normRadFreqA.eps}}$ $\scalebox{0.8}{\includegraphics{eps/normRadFreqB.eps}}$ $\scalebox{0.8}{\includegraphics{eps/normRadFreqC.eps}}$

If a 2 Hz sinusoid is reconstructed at half the sampling rate at which is was sampled, it will have a frequency of 1 Hz, and will be twice as long.

``Music 270a: Fundamentals of Digital Audio, Discrete-Time Signals'' by Tamara Smyth, Department of Music, University of California, San Diego (UCSD).

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