6
SYSTEM 15
Quick Start Guide
7
Voltage Control (modulation)
921 Aux Sine Output
2nd 902 Signal Input
2nd 902 Signal Output
921B DC Mod Inputs via Multiple
2nd 911 Output
2nd 902 Control Input
This patch allows a delayed vibrato effect to fade in when a note is held.
The external keyboard controls the pitch and triggering of notes via the CM1A MIDI Interface. As this can be switched between v-trigger and s-trigger then s-trigger
should be selected and the 961 Interface need not be used.
Pitch CV is fed to one of the 921As, which daisy chain to the 921B VCOs. The selected waveform from each oscillator is fed to the CP3A-M mixer; which then feeds the
904A LPF. S-triggers are fed to a multiple, and then to the 911s’ s-trigger inputs
The output of the 904A LPF is fed to one of the 902 VCAs, which feeds out to your mixer, amplifier or DAW. This VCA is controlled by the first 911 EG. The second 911 EG
controls the second 902 VCA.
The second 902 VCA signal input is fed from the 921 LFO. Its output is fed to one of the CP35 multiples, whose outputs feed the DC Modulation inputs of the 921B VCOs
The second 911 should have a long attack time and full sustain.
So long as the first 911 has a long sustain time, when a note is held a vibrato effect will fade in slowly. When notes are played legato there is little or no vibrato
Space Rock
This patch creates two of the classic ‘space rock’ sounds, and allows them to be mixed together.
Source
Destination
921 Sine Wave Output
904A Control Input
921A Frequency Output
2 x 921B Frequency Link (in series)
1st 921B Sine Wave Output
904A Control Input
2nd 921B Sine Wave Output
904B Control Input
923 Pink Noise Output
904B Signal Input
904A Signal Output
CP3A-M Input 1
904B Signal Output
CP3A-M Input 2
CP3A-M Output
Your mixer, amplifier, DAW
Control settings are very important for this patch.
Regeneration on the 904A must be set to 9 or 10 to force the filter to self-oscillate
The 921A should have Octave selected and the frequency control set to -6
The 921Bs should be set to ‘Lo’ – these oscillators provide the sweep to the filters
The 921 should be set to ‘Sub’ – this is the main modulation for the self-oscillating filter, and manual alteration of the Frequency control helps to produce the
classic sound.
To mixer/amplifier/DAW
The pink noise feeding the 904B produces a swept wind effect, that can be altered with the Fixed Control Voltage
Altering the Fixed Control Voltage of the 904A also produces interesting effects
The CP3A-M balances the two signals, as an alternative feed the outputs of the two filters direct to two mixer or amplifier channels. Both sounds benefit from a lot
of echo!
Expressive Lead #2
This sound uses Pulse Width Modulation to a pair of oscillators, one of which should be slightly detuned to fatten the sound.
Voltage Control (pitch)
Source
Destination
External MIDI Keyboard – MIDI Out
CM1A MIDI Interface MIDI In
921A Frequency Output
921B Oscillator Frequency Link (in series)
921A Width Output
921B Oscillator Width Link (in series)
Audio
2 x 921B Square Wave Output
CP3A-M Inputs 1 & 2
CP3AM Output
904A Signal Input
904A Signal Output
902 Signal Input
902 Signal Output
Your Mixer/Amplifier/DAW
Voltage Control (Amplitude)
CM1A s-trigger Output via Multiple
2 x 911 s-trigger Input
1st 911 Output
1st 902 Control Input
Voltage Control (Modulation)
921 sine wave Output
921A Width Input
921A Width Link
2 x 921B Width Link (in series)
2nd 911
904A Control Input
The detuned 921B VCOs give a fat sound, whose timbre changes constantly at the speed of the 921 sine wave – the 921 should be in Sub mode, speed can be adjusted
to suit.
The sound comes from the 904A LPF, whose Fixed Control Voltage and Regeneration can be set to whatever suits your aim, plus modulation from the second 911 EG.
EG settings can be adjusted to suit for the main part of the sound, although medium to high levels on T2 (decay), T3 (release) and E sus(tain) are recommended.
The second EG should have a medium length T1 (attack), medium T2 (decay) and minimal T3 (release) and E sus(tain).
MIDI Out
To mixer/amplifier/DAW
Summary of Contents for SYSTEM 15
Page 7: ...We Hear You ...
