User`s manual

Page 22
Voyager OS User’s Manual - The Components
Page 23
Voyager OS User’s Manual - The Components
Envelope Section Controls:
Attack:
The
ATTACK
control sets the attack time of the corresponding envelope generator, from 1 msec to 10
seconds.
Decay:
The
DECAY
control sets the decay time of the corresponding envelope generator, from 1 msec to 10
seconds.
Sustain:
The
SUSTAIN
control sets the corresponding level for the sustained part of the envelope.
Release:
The
RELEASE
control sets the release time of the corresponding envelope (the time for the envelope
to transition from the sustain level to zero), from 1 msec to 10 seconds.
Amount To Filter:
For the Filter Envelope, there is an
AMOUNT TO FILTER
control that adjusts the amount of the  lter
envelope signal that modulates the  lter. The
AMOUNT TO FILTER
control has both positive and
negative values. If it is set to a positive value (say ‘+2’), the envelope will add to the Filter
CUTOFF
dial
setting. If it is a negative value (say ‘–2’), the envelope will subtract from the Filter
CUTOFF
dial setting.
Envelope Gate:
Envelopes are triggered by a gate signal. The envelopes will sustain as long as a gate signal is present.
When the gate is off, the Release portion of the envelope is executed as shown below. The switch
labeled
KEYB/ ON/EXT
selects whether the envelopes are triggered from the keyboard, or from
another gate source. When
KEYB
(Keyboard) triggering is selected, the envelopes are triggered by
a gate trigger signal that is generated when a note on the keyboard is played. When the switch is set
for
ON/EXT
(On/External), the envelope gate source defaults to ON if nothing is plugged into the
ENV GATE jack on the Voyager back panel, and the envelopes will sustain at the level determined by
their respective
SUSTAIN
controls. This is useful for keeping the envelopes sustaining without holding
a key down, when you want to process an external audio signal through the  lters with out using the
keyboard, or to create drones.
Envelopes sustain as long as a Gate
Trigger is present. The Release phase
starts when the Gate Trigger stops.