- graphic equalizers
In the graphic equalizer, the input signal is sent to a
bank of filters. Each filter passes the portion of the signal
present in its own frequency range or band.
- parametric equalizers
Parametric equalizers are multi-band variable equalizers
which allow users to control the three primary
parameters: amplitude, center frequency and bandwidth.
Below is shown a stereo graphic equalizer with the
happy face" setting, in which the mid-range sound
frequencies are cut.