66
E-MU Systems
Programming Basics
Preset Modulation Processors
The preset ramp instantly resets when all notes have been released and the
next first key on the MIDI channel is pressed. The Ramp Rate polarity
(+ or -)
determines if the ramp will be positive or negative going. The value
of the ramp rate sets the increment. Large values produce fast ramps and
small values produce slow ramps. Multiple inputs can be connected to the
ramp rate (just like all the other destinations in B-3).
Why do we want this? The original B-3 organ has a key percussion feature
which only sounds on the first note played. While this undoubtedly
resulted from the technical shortcomings of the day, many players have
adopted and embraced this unique feature. The Preset Ramp exactly dupli-
cates the first note percussion of the original B-3. The patch is a little
complicated and you may find it easier to simply copy and edit an existing
preset. Nevertheless, here is the complete B-3 percussion patch.
1.
DC
- Sets initial ramp Fast-Positive (+100)
2.
Decay Knob
- Inverted value slows ramp as the knob value is increased.
O
O
O
O
The combination of the
DC & Perc. Decay Time Cords
has the effect of reversing the
Percussion Decay Time knob.
The decay time increases as the
knob is turned up.
3.
Ramp Out Cord
- Inverts Ramp slope (downward).
4.
Amp Vol
- Initial setting is Off (-96dB). Ramp cannot overcome this
negative bias.
5.
Perc. Amt
- When this knob is turned up, the positive bias on the Amp
is restored so that so that the Ramp can now affect Amp Volume.
6.
Volume Envelope
- Fast Attack, Full Sustain, No Release
Invert
Preset
Ramp
Out
Rate
Cord
-100
Cord
+100
DC
Cord
-100
R
L
Pan
Percussion
Instrument
Amp
Vol
Z-Plane
Filter
Initial Setting
-96 dB (off)
Percussion
Amount
Percussion
Decay Time
Cord
+100
Layer
Cords
Preset
Cords
One Layer
Real Rocket Science
Содержание B-3
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