Dynamic Range - EMS iVCS3 User Manual

As you know you can employ DK as Controller Voltage based or play DK with
internal VCO (saw). For this you have four controls: Frequency, Dynamic
Range, Tuning Spread and Level. As explained, middle F# produce 0V, if
you want to tune the iVCS3 you will need to play F# adjusting the Frequency
knob to 369.99 Hz (i.e. tempered F#4 and is default value for VCO 1 and DK
VCO Frequency). Thus you will achieve standard musical scale tuned to 440
Hz (diapason). Likewise, when you employ DK as Voltage Controller, you
must calibrate the VCO Frequency controls.
In the original VCS3, the Tuning Spread range is +- half semitone (although
it is voltage), where zero spread produces no tuning deviation. In iVCS3 this
range was extended to +- 2 semitones and default value is 0 (which means
no spread). When you use DK as Voltage Controller, tuning spread can be
done by the Input Level (Ch.1 or 2) on the main panel.
IN order to achieve perfect pitch from the DK (temperate scale) you need to
set the Input Level Channel 1 or 2 to 0.32v. If input level knobs are at other
settings you`ll get +- tones per keyboard octave, this is good for using other
scales like quarter tone, 19 or 21 notes/octave or such.
Dynamic Range.The DK keys have a built-in VCO, when you are playing
with this VCO and the DYNAMIC VOLTAGE knob is turned left (disabled) the
amplitude of the DK VCO plays with the same amplitude (mezzo forte). The
level of DK VCO is controlled according to touch position of DK keys: top:
pianissimo, middle: mezzoforte, bottom: fortissimo). Playing iVCS3 keyboard
keys from top to bottom, you can change the amplitude (dynamics) of the
note i.e. MIDI key velocity (0 ÷ 127). Another new feature of DK is that there
is a VCA inside where you can send an audio signal from the iVCS3 for
mixing with the internal DK VCO.
METER, then they will go to the DK "mixer" and mix the internal DK VCO as
the third VCO. Then put switch1 to "signal" and switch2 to "key voltage".
Input 1 goes to "input 1" row in the iVCS3 and so this is the mixed signal of
the three VCOs but with the level controlled by the keyboard dynamic. Key
voltages go to input2 so that you can patch to VCO1 & 2 frequency, so all
three can track in pitch.
If you send something to the METER (i.e. SCOPE
jack-socket) row, then that will go to the DK and the
signal will be mixed with the internal DK VCO, you
control the mix with the DK Level. Then you can
send this mixed signal back to the VCS to input 1 by
putting the switch to "signal" . The keyboard
dynamic (velocity) will affect this mixed signal! So,
for example, you can send, lets say, VCO 1&2 to