The VCA A section takes the VCF LowPass output with a single patch cord The VCA A output could patch to a
mixer or amp/speaker, etc.
The ADSR controls set the dynamics of the sound as the keys are pressed and the envelope is generated and
'opens' the VCA.
Note the VCO waveform outputs are high level and you may need to set input levels lower than for usual stuff,
or, a special patch cord to attenuate the output can be made. I have one that puts a couple of fixed resistors in
series from the tip to sleeve circuits on the plug at 9700 end of the cable and the signal is tapped at the junction
of the resistors for a more typical 'line-level'. The two resistors are a 10k and a 1k and the 10k attaches a the tip
and the 1k at the sleeve. The tap for the signal that wires on to the tip of the plug for the mixer, amp/speaker,
etc is from the junction of the two resistors. The ground circuit is as usual--sleeve terminal to sleeve terminal.
The reason its needed here but not on module to module patches is that the modules all share a ground
already--the power supply ground circuit--but the synth and the external device don't until one connection is
made between them establishing a common ground.
There are many more possibilities. Experiment. Use the testing and calibration sections of the manuals and the
descriptions of the controls and connectors as a guide in these experiments.
In the preceding example, only the Pitch CV and Gate trigger outputs derived from MIDI note messages were
used. I'll touch on possibilities for all the outputs available in the MIDI converter 'mode one'.
1) Pitch CV - to VCO to control pitch and perhaps to VCF to so filter response varies according to keyboard
range.
2) Attack Velocity - a cv output proportional to the speed keys are pressed that is interesting patched to filter
control inputs and vca control inputs.
3)Gate - a trigger activated for keys pressed and active for the duration of a key(s) pressed.
4) Trigger Pulse - a trigger activated for a short duration as a key(s) is/are pressed. When this goes to the
envelope generators along with the Gate trigger, the envelopes are reiterated for multiple key-downs.
5) Pitch Wheel - a cv output proportional to the setting of the MIDI Controller's Pitch Wheel.
6) Mod Wheel - a cv output proportional to the setting of the MIDI Controller's Modulation (amount) wheel.
7) Aftertouch - a cv output proportional to the value of the MIDI Controller's Channel Pressure message
(according to force against keys on the keyboard).
