Simple Explanation

An equalizer that allows control of frequency, bandwidth, and the amount of boost or cut applied to different parts of the audio spectrum.

Concise Technical Definition

A type of equalizer that provides separate controls for frequency, bandwidth, and the level of boost or cut, allowing for precise adjustments to the audio signal.

Layman-Friendly Analogy

Think of it as a musical equalizer where you can not only adjust the volume of different notes (frequencies) but also decide how wide or narrow those notes sound, and how much to increase or decrease their volume.

Industry Usage Summary

First designed by George Massenburg in 1969, the parametric EQ allows for precise control of the frequency spectrum, making it popular in both professional recording and live sound environments. It gives audio engineers the flexibility to adjust the center frequency, bandwidth, and amplitude of sound in a way that standard equalizers do not.

Engineering Shortcut

A multiband EQ with control over frequency, bandwidth, and level (boost/cut).

Full Technical Explanation

The parametric equalizer, first developed by George Massenburg in 1969, is a type of multiband EQ offering comprehensive control over the parameters of an internal bandpass filter. These parameters include amplitude (boost or cut), center frequency (the specific frequency to adjust), and bandwidth (the range of frequencies affected). By adjusting these parameters, users can not only adjust the volume of specific frequency ranges but also shift the center frequency and change the width of the affected range. This type of EQ is often equipped with either rotary or slide controls for precise adjustments.