148 E-MU Systems
Preset Edit Menu
Z-Plane Filters
Z-Plane Filters A filter is a device which changes the output of a signal (sound) by
removing certain elements of the signal based on the frequency and
amplitude. The “Order” of a filter defines the number of filter elements it
contains. The more elements, the more complex the filter.
Vintage Keys contains 50 different types of E-MU’s celebrated Z-plane
filters. In addition to the standard Low pass, High pass and Band pass filters,
Vintage Keys contains Swept Octave Equalizers, Phasers, Flangers, Vocal
Formant Filters, and digital models of classic synthesizer filters.
In the filter chart below you will notice that the “Order” of the filters varies
from 2 to 12 order. Higher order filters have more sections and can produce
more complex formants. Vintage Keys can produce 128 filters of up to 6th
order or 64 filters of 12th order complexity. Therefore, if you decided to use
all 12th order filters, Vintage Keys would be limited to 64 voices.
Vintage Keys Filter
Types
This screen allows you to choose the type of filter for the current layer.
Filter Name Order Type Description
Smooth 02 LPF Typical OB type low-pass filter with a shallow
12 dB/octave slope.
Classic 04 LPF 4-pole low-pass filter, the standard filter on
classic analog synths. 24 dB/octave rolloff.
Steeper 06 LPF 6-pole low-pass filter which has a steeper slope
than a 4-pole low-pass filter.
36 dB/octave rolloff!
MegaSweepz 12 LPF “Loud” LPF with a hard Q. Tweeters beware!
EarlyRizer 12 LPF Classic analog sweeping with hot Q and
Lo-end.
Millennium 12 LPF Aggressive low-pass filter. Q gives you a
variety of spiky tonal peaks.
KlubKlassik 12 LPF Responsive low-pass filter sweep with a wide
spectrum of Q sounds
BassBox-303 12 LPF Pumped up lows with TB-like squelchy Q
factor.
Shallow 02 HPF 2-pole high-pass filter. 12 dB/octave slope.
Deeper 04 HPF Classic 4-pole high-pass filter. Cutoff sweep
progressively cuts 4th Order High-pass.
Band-pass1 02 BPF Band-pass filter with 6 dB/octave rolloff on
either side of the passband and Q control.
Band-pass2 04 BPF Band-pass filter with 12 dB/octave rolloff on
either side of the passband and Q control.
L1
FILTER Ord Type
Phazer 2 E4 6 PHA
Filter Types
LPF Low-pass filter
PHA Phaser
HPF High-pass filter
FLG Flanger
BPF Band-pass filter
VOW Vowel/ formant
EQ+ EQ boost
EQ- EQ cut
SFX Special Effect
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