Electronics 01
Nyquist Theorem: Why Twice the Frequency Isn't Enough
Sample a sine at exactly twice its frequency and you can record pure zeros. Why Nyquist needs more than 2x, how aliasing folds, and why CDs use 44.1 kHz.
Sample a sine at exactly twice its frequency and you can record pure zeros. Why Nyquist needs more than 2x, how aliasing folds, and why CDs use 44.1 kHz.