Chris' Page on Aliasing using MatLab

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Demo of Aliasing Using Matlab

Frequencies above half the sample rate will produce aliasing. This should appear as a lower frequency signal.


Below is a spectrogram of a quadratic sweep from 20 Hertz to 20,000 Hertz using a 441000 Hertz sample rate. Currently the Y-Axis frequency scale is wrong, the max should be 20,000.

File:Chirp41000.jpg

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