This is "must see" video on the principles of sound.
Les Cowley's List: Acoustics One
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Oct 01, 10
"What happens when a frequency above the Nyquist frequency is sampled and played back? Do these frequencies simply disappear? Unfortunately not. Frequencies above the Nyquist frequency cause aliasing (also called foldover or biasing). The spurious frequencies they produce are predictable, in that they are mirrored the same distance below the Nyquist frequency as the originals were above it, at the original amplitudes.
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33 items | 33 visits
The main page of Hyperphysics site
Updated on Sep 11, 15
Created on May 03, 09
Category: Science
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