| Graphic equalizer | |
| A device or software “plug-in” consisting of series of overlapping bandpass or band reject filters with fixed bandwidths, slopes and centre frequencies. | The software versions may have all of the parameters
user controllable.
professional devices usually have 31 “bands” or filters whose centre frequencies are arranged 1/3 octave apart with the capability of amplifying or attenuating the signal by + or - 12 dB. |
