Moog Music Voyager Old School - Manual (Page 20)

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Voyager OS User’s Manual - The Components
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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 fi lter
envelope signal that modulates the fi 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 fi 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.