CM100B
Revision 1.01
AP099
keyboard "memory" devices of great utility in performance. And by freeing both hands from
the keyboard, these tools aid in your learning how to patch.
To understand the keyboard controls you first need to know that inside the Pro- 1 a GATE
signal is produced when a key is received over MIDI or from the sequencer, which controls
the envelope generators. The initial appearance of the GATE "triggers" the envelope
generators to-proceed through their ATTACK and DECAY periods. After the ATTACK and
DECAY periods set for each envelope generator have elapsed, it will produce a steady
control voltage (CV) at the level set by the SUSTAIN knob for as long as the GATE is present.
When the GATE goes off, indicating the key has been released, the envelope generator
output voltage decays to zero at a rate set by the RELEASE knob. (For more information, the
Filter section.)
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