User Manual

16
MODIFIERS (Continued)
COUNTOUR CONTROLS
Contour controls provide a way to add articulation to the sound of the synthesizer. The Minimoog
Model D features two Contour, or Envelope Generators. One provides a signal to change the Filter
Cutoff Frequency over time. The second 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 Cutoff
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
Cutoff 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, located on the Left-Hand Keyboard panel.
SUSTAIN LEVEL KNOB
After the Attack and Decay stages have been completed, the Filter Contour Generator will hold the Filter’s
Cutoff Frequency at the level determined by the SUSTAIN LEVEL knob for as long as a note is held.
AMOUNT OF CONTOUR KNOB
The AMOUNT OF CONTOUR knob determines how much of the control signal created by the Filter
Contour will be applied to change the Filter Cutoff Frequency over time.
LOUDNESS CONTOUR
ATTACK TIME KNOB
The ATTACK TIME knob sets the time required for the Loudness Contour Generator to raise the
Volume from zero to its maximum level once a key is pressed or after a gate is received.
DECAY TIME KNOB
The DECAY TIME knob sets the time required for the Loudness Contour Generator to lower the
Volume from its maximum level achieved by the Attack stage to the Sustain Level. The DECAY TIME
knob can also control the amount of time required for the note to completely fade out after a key
is released (or after an external gate signal ends). This second function of the DECAY TIME knob is
activated by the DECAY switch, located on the Left-Hand Keyboard Panel.
SUSTAIN LEVEL KNOB
After the Attack and Decay stages have been completed, the Loudness Contour Generator will
maintain the Volume level determined by the SUSTAIN LEVEL knob for as long as a note is held.
Attack
Time
Time
Sustain
Level
(Initial)
Decay
Time
Decay
Switch On
Decay
Time
Decay
Switch
Off