Oberheim OB 12 Operating Manual - page 79
OB 12
Z-Domain Synthesizer
9.
4 EDIT EQUALIZER
199
Another selection relating to configuration of a Program is the EQUALIZER. This function allows
you to make use of an equalizer in order to be able to control the tone of the sound you are
producing. One very important functional feature of the Equalizer is the fact that it can be configured
as either parametric or graphic.
A parametric equalizer consists of three sections. Two analog sections are used to attenuate /
enhance two opposite frequency bands (low-pass and high-pass), while a third can be positioned
without restriction in a medium frequency range. This allows the user to set not only the frequencies
to be affected, but also their enhancement / attenuation, and the band width.
A graphic equalizer, on the other hand, allows control of given preset frequency bands, and
attenuation / enhancement of these bands are the only operations possible.
From the EDIT PROGRAM MENU video page select field 4-EQUALIZER; the display will show:
The parameter allowing definition of the equalizer operating mode is TYPE.
Therefore, if a graphic equalizer (illustrated by the above video page) is required, set
TYPE=GRAPHIC.
The parameters used are the following:
•
LOW
([60])
: enhances / attenuates the signal in the frequency region with centre on 60 Hz.
•
HIGH
([200])
: enhances / attenuates the signal in the frequency region with centre on 200 Hz.
•
TYPE
([MID MODE])
:sets the equalizer mode.
•
MID LOW
([600])
: enhances / attenuates the signal in the frequency region with centre on 600
Hz.
•
MID CENTER
([2K])
: enhances / attenuates the signal in the frequency region with centre on 2
KHz