14 SYSTEM 55 Quick Start Guide 15
System 55 Patches
Expressive Lead #1
This patch is a full-on three oscillator lead synth soloing creation, with a delayed vibrato eect that fades in when a note is held.
Voltage Control (pitch)
Source Destination
External MIDI Keyboard – MIDI Out CM1A MIDI Interface MIDI In
CM1A CV Output 921A Frequency Input
921A Frequency Output 921B Frequency Link (in series)
Audio
921B Waveform Outputs (three of four) CP3A-M Inputs
CP3A-M Output 904A Signal Input
904A Signal Output 902 Signal Input
902 Signal Output Your mixer/amplier/DAW
Voltage Control (amplitude)
CM1A s-trigger Output Multiple
Multiple Output (three of) 2 x 911 s-trigger Input & 911A s-trigger Input
911A Output 3rd 911
1st 911 Output 1st 902 Control Input
Voltage Control (modulation)
2nd 911 Output 904A Control Input
921 Aux Sine Output 2nd 902 Signal Input
2nd 902 VCA Signal Output CP3A-O Input 4
CP3A-O Outputs 921B DC Mod Input (three of)
3rd 911 Output 2nd 902 Control Input
MIDI OutTo mixer/amplier/DAW
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. Pulse Width Modulation is also daisy chained. The selected waveform from each oscillator is
fed to one of the CP3A-M mixers; which then feeds the 904A LPF. S-triggers are fed to a multiple, and then to two of the 911 EGs’ s-trigger inputs and the s-trigger
input on the 911A
The output of the 904A is fed to one of the 902 VCAs, which feeds out to your mixer, amplier or DAW. This VCA is controlled by the rst 911 EG. The second 911 EG
feeds the 904A control input. The 911A feeds the third 911 EG, which controls the second 902 VCA.
The second 902 VCA signal input is fed from the 921 LFO. Its output is fed to the fourth input of the C3PA-O, so that it can be attenuated if necessary. The C3PA-Os
three outputs feed the DC Modulation inputs of the 921 VCOs
The third 911 EG should have a long attack time and full sustain. The 911A should have a delay of two seconds or more.
So long as the rst 911 EG has a long sustain time, when a note is held a vibrato eect will fade in after a delay (Time set by the 911A). When notes are played legato
there is 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, amplier, DAW
To mixer/amplier/DAW
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