A
Graphic Equalizer, or
Graphic EQ for short, is an
electronic device used to modify the levels of specific frequencies in an
audio signal being transmitted electronically (sound coming through a
wire).
Each
fader represents a certain
frequency range (which is labeled below the fader). These EQs can generally cover frequencies from 20hz to 20khz, the audible range of
sound.
A Graphic EQ is a very visual way of doing
sound engineering but it has many shortcomings.
First, unlike
Parametric EQs, a Graphic EQ will not let you get the
frequencies in between the
faders, so you may be stuck a little high or a little
low in your choices. Secondly, they are big and take up a lot of
space so most
channels on a mixer use a
parametric eq.