3-Band Eq - Korg Soundlink DRS OASYS PCI Patches & Effects Manual

3-Band EQ

3-Band EQ
This is a three-band EQ with high and low shelving and a fully parametric middle
band, with very broad Q (from 0.25 to 32). As with all EQs in the OASYS PCI, the
curves are smooth and symmetrical in frequency, modeling analog EQs.
For the more technically inclined, the EQ calculations are all double-precision,
using first-order error-feedback.
Symmetric Q
The peaking band's Q is identical for boost and cut, which may be referred to as
"symmetric Q." Some specific EQs use asymmetric Q, in which a given Q for cut is
1/3 the actual bandwidth of the same Q for boost. So, if you are used to a particular
type of equalizer, and the Q in this effect doesn't seem right when cutting, try
multiplying the Q by three.
Input
Source
Left, L + R. This is a mono-in, mono-out effect. Stereo signals are preserved in the
dry mix at the output, but the effect itself has only a single, mono input.
When this is set to Left, only the left channel will be routed into the effect.
When this is set to L + R, the left and right channels will be summed together, and
then routed into the effect.
Level
-INF, -69.0 to 0.0dB. This sets the input level for the effect. It does not affect the dry
signal.
Note that extreme positive or negative gain settings can dramatically increase the
volume within the EQ effect, so it may be necessary to decrease the input volume to
avoid clipping.
Low Shelf
Frequency
20-2000Hz. This sets the cutoff frequency of the low shelving EQ, in Hz. This is the
point at which gain is 3dB below maximum, as shown in the figure "High and Low
Shelving EQ," on page 382.
Gain
+/-18.1dB. This sets the amount of boost or cut for the low shelf.
380
EQ
OASYS PCI