Nyquist Theorem (The Sampling Theorem)

Nyquist Theorem (The Sampling Theorem – pretty advanced, don’t sweat it if it seems too complex): During analog-to-digital conversion, the maximum frequency that can be represented by a digital audio source equals half the sample rate used to capture the analog audio. If human hearing is only capable of perceiving 22.5 kilohertz, the sample rate must equal 44, 100 samples per second, or 44.1 kilohertz. This explains why “cd quality” was originally set with a sampling rate of 44.1 khz. [ Audio Glossary ]