Browse Teach Curate

Sampling Rate and the Nyquist Limit

The first irreversible decision in digitising a voice. The Nyquist limit — half the sampling rate — is the hard ceiling on what frequencies can be represented at all, and it decides whether the higher formants a voice study reports were ever recoverable from the file.

Questions this Concept answers

Why does energy above the Nyquist limit corrupt a recording rather than simply going missing from it?

jeremy Video

The Nyquist-Shannon Sampling Theorem in Digital Audio Engineering

The Nyquist-Shannon sampling theorem states that a band-limited signal (one containing no frequencies above a given limit) can be perfectly described and perfectly reconstructed from instantaneous sa…