Behringer SYSTEM 55 - Page 11

20 SYSTEM 55 Quick Start Guide 21
Voltage Control (Amplitude)
CM1A s-trigger Output via Multiple 2 x 911 s-trigger Input
1st 911 Output 902 Control Input
Voltage Control (Modulation)
921 Sine Wave Output 904A Control Input
2nd 911 Output 904A Control Input
This sound uses two 921B VCOs, with dierent waveforms, and sounds best if one is slightly detuned. They both feed the 904A LPF, and their relative levels can be
adjusted with the CP3A-M mixer as required. The 904A’s output is fed to a 902 VCA, whose amplitude is controlled by the rst 911 EG
To obtain the percussive edge this 911’s settings should be T1 (attack) 2ms, T2 (decay) 200ms, T3 (release) 200ms, E sus(tain) 4 seconds
The 904A is modulated by a slow sine wave from the 921 LFO and by the 2nd 911 EG, which should have settings around T1 (attack) 1 second, T2 *(decay) 50ms, T3
(release) 4 seconds, E sus(tain) 9
Harmonic Sequence
In this patch the 960 Sequential Controller plays two eight note sequences which are harmonically related. Row A controls the rst block of 921A/921Bs;
and Row B controls the second. Row C is not used.
To mixer/amplier/DAW
Voltage Control (pitch)
Source Destination
960 Row A Output Left hand 921A Frequency Input
960 Row B Output Right hand 921A Frequency Input
921A Frequency Output 921B Frequency Link (in series)
Audio
921B Waveform Outputs (three of four) CP3A-M Inputs
Left hand CP3A-M Output 904ASignal Input
Middle CP3A-M Output 904B Signal Input
904A Signal Output 1st 902 Signal Input
904B Signal Output 2nd 902 Signal Input
Signal Outputs of both 902s Right hand CP3A-M Inputs
Right hand CP3A-M Output Your mixer/amplier/DAW
Voltage Control (amplitude)
960 Osc Output (v-trigger) 961 Interface v-trigger Input
961 Interface s-trigger Output Multiple
Multiple Output (three of) 3 x 911 s-trigger Input
2 x 911 Output 2 x 902 Control Input
Voltage Control (modulation)
3rd 911 Output 992 Control Voltages Input 4
921 Aux Sine Output 992 Control Voltages Input 1
992 Control Voltages Output (two of) 904A & 904B Control Inputs
The 921A/Bs controlled by Row A are fed into the 904A LPF via the rst CP3A-M mixer, which allows the levels of the 921Bs to be adjusted; those controlled by Row B
are similarly mixed and fed to the 904B HPF.
The outputs of the two lters are each fed to a 902 VCA. These are controlled by two of the 911 EGs. These, and a third 911 used for modulation, receive their s-trigger
from the 961 Interface, via a multiple. The 961 takes a v-trigger from the Osc Out of the 960 and converts it.
The Aux output of the 921 LFO, set to Sub, is fed to the rst input of the 992 Control Voltage Interface. The third 911 mentioned above is fed to the fourth (attenuated)
input. The output of the 992 is fed to the Control Inputs of both lters.
The eect produced is that as one sequence becomes louder through opening the lter the other becomes quieter, so that they swap places. Altering the Fixed
Voltages on the lters and the attenuation of the third 911 varies the eect.
As an alternative Row C of the 960 could replace the third 911; or be used alongside the two other modulation sources.