Moog MINIMOOG MODEL D - Keyboard Control Switches; Filter Contour Envelope

30 | Modifiers
KEYBOARD CONTROL (1&2) SWITCHES
The Keyboard Control switches allow the note played on
the keyboard of Minimoog Model D to aect the Filter Cuto
Frequency, a process also known as key tracking. This allows
notes played higher on the keyboard to have brighter sound.
Keyboard Control 1 provides 1/3 of the total amount of
available key tracking. Keyboard Control 2 provides 2/3 of
the total amount of available key tracking. By using both
switches together, the full amount of available key tracking
(1/3 + 2/3 = 1) is applied, resulting in an octave change in filter
cuto per octave change played on the keyboard.
CONTOUR CONTROLS
Contour controls provide a way to add
articulation to the sound of the synthesizer.
Minimoog Model D features two Contour
controls, or Envelope Generators. One
provides a signal to change the Filter
Cuto Frequency over time. The other
provides a signal to change the Loudness
over time. In both cases, the Contour
contains three main controls: ATTACK
TIME, DECAY TIME, and SUSTAIN LEVEL.
FILTER CONTOUR
ATTACK TIME KNOB
The Attack Time knob sets the time required for the Filter
Contour Generator to raise the Filter’s Cuto Frequency
from its manual setting to its maximum level (determined by
the Amount of Contour knob) once a key is pressed or after
a gate is received.
DECAY TIME KNOB
The Decay Time knob sets the time required for the Filter
Contour Generator to lower the Filter’s Cuto Frequency
from the level achieved by the Attack stage to the Sustain
Level. The Decay Time knob can also control the amount of
time required for the Filter to return to its manual setting
after the key is released (or after an external gate signal
ends). This second function of the Decay Time knob is
activated by the DECAY switch on the Left-Hand Keyboard.
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