Moog Music Minimoog Voyager XL - Manual (Page 23)

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Voyager XL User’s Manual - The Components
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Voyager XL 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 that the filter
envelope signal modulates the filter. 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 CUTOFF control setting. If
it is a negative value (say ‘–2’), the envelope will subtract from the CUTOFF control setting.
Envelope Gate:
The 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 a programmable gate source. When KEYB (Keyboard) triggering is selected, the envelopes are
triggered by a MIDI Note On. When the switch is set for ON/EXT (On/External), the envelope gate
sources are set by the programmable gate sources in EDIT mode, called ‘Fil. ENV Gate SRC’ (Filter
Envelope Gate Source) and ‘Vol. ENV Gate SRC’ (Volume Envelope Gate Source). The default for the
programmable gate sources is ‘Env Gate Input’ which defaults to ON. In this case the envelopes sustain
at the level determined by the respective envelope 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 filters with out using the keyboard, or to create drones. This also allows separate gate
sources for the two envelopes.
Envelopes sustain as long as a Gate
Trigger is present. The Release phase
starts when the Gate Trigger stops.