Glossary

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Nyquist frequency

In digital audio, the highest frequency that can be accurately sampled—it can be no higher than at ½ of a chosen sample rate. Example: The CD sampling rate of 44.1 kHz allows accurate representation of frequencies up to around 21 kHz (hence here the Nyquist frequency) which is near the upper limit of human hearing.

Near Field Monitor

noise (audio term)

Nyquist frequency