Envelope Generators - Xils lab miniSyn'X User Manual

or [DRV POST] selects where the driving stage will
stand, before or after the filter.
Mode of Filter Operation select Buttons:
LP12: select a Lowpass 12 db/Octave, meaning that
the frequencies above the cut-off point are attenuate
at a rate of 12 db/octave
LP24: select a low pass 24 db/octave
BP6: select a band pass 6 db/octave
BP12: select a band pass 12 db/octave
HP12: select a high pass 12 db/octave
9.1.4

Envelope Generators

The miniSyn'X features two envelope generators (EG). The first one is dedicated to the
control of filter's Cut Off value, while the second is hardwired to control the output level stage
(VCA).
An envelope generator is a classic electronic module that outputs a command signal, built on
four parts: ADSR (Attack-Decay-Sustain-Release).
When the envelope is trigged (generally by hitting a note on the keyboard, or from the output
of a sequencer or an arpeggiator) it begins with "Attack" part: From zero to the maximum level,
the EG outputs a signal which increases in a time depending on the Attack setting. Then
follows the "Decay" part, while the output decreases to a level specified by the Sustain setting,
during a time specified by the Decay setting. It stays on this "sustain" level as long as the EG
is gated (i.e. as long as the note is held). Then when the note in off, it goes into the "release"
stage, while the output continuously decreases to zero, depending on the Release setting.
DELAY: set the time before the envelope enters the attack
step.
MIDI Sync LED: When ON, the delay time is set according to
the Tempo of the application host.
Attack: set the time over which the output increases.
Decay: set the time the output decreases to the sustain level.
Sustain: set the sustain level, maintains while the EG is gated
(the note is held)
Release: set the time the output decrease to zero after the
note is released.
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