The Morpheus Filter - E-Mu MORPHEUS Operation Manual

• The Morpheus Filter

This is what a lot of you have been waiting for. This incredible filter is
what puts the Morph in Morpheus. If you have not read the section on the
Z-Plane Filter in the Preset Programming section, please do so before proceed-
ing, since it contains important background information. Now we can add
the Z-Plane filter to our block diagram.
Instrument
Tone
Sample
Pitch
Start
Function
Gen.
Let's examine the filter controls more closely. The vertical arrows in the
diagram below, indicate controls that can be modulated. The Morph
Offset is the only filter control that can be modulated continuously by a
Realtime Control source.
Filter
Level
The filter has an input level control called the Filter Level which controls
how much signal is presented to the filter. This control (like most of the
controls in Morpheus) has an initial amount and can also be controlled
from a Note-on modulation source. Certain Morpheus filters are de-
signed to distort the signal as a musical effect. The Filter Level allows
you to control the amount of distortion produced by these special filter
types.
The action of the Morph Offset varies from filter to filter. Because it can
be continuously varied, it can be thought of as the main filter control.
See the section on Morpheus Filters in the Reference Section of this
manual for specific information on each filter.
The Frequency Tracking control changes the frequency of the filter on
many of the filter types. This would correspond to Fc or the cutoff
frequency of a traditional lowpass filter, You can connect the keyboard
to this control (in the Note-on Control screen) with an amount setting
of "64" if you want the filter frequency to track the keyboard.
Z-Plane Filter
Freq Trans
Morph
Trk 2
Aux.
Velocity
DAHDSR
Key
Position
Filter Type
Reverse
Morph Freq. Transform
Offset Track 2
DCA Pan
Volume
Volume
Possible
AHDSR
Modulation
Sources
Chapter 10: Step-by-Step
STEP-BY-STEP
R
L
••• Frequency Tracking does
not always control frequency
as the name would imply.
See the Z-Plane Filter De-
scriptions in the Reference
Section for details on each
filter type.
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