Proteus 1000 Operation Manual 111
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Low Frequency Oscillators (LFOs)
Sync
The Sync field specifies whether the LFO is synchronized to a key stroke or
is Free Running. Key Sync starts the LFO wave at the beginning of its cycle
each time you press a key on the controller. In Free Run mode, the LFO
wave begins at a random point in its cycle each time you press a key on the
controller.
Rate
The Rate field determines the LFO speed in absolute frequency rate values
or tempo-based note values. All values equal to or greater than zero specify
absolute frequency values from 0.08 Hz to 18.14 Hz.
Values less than zero specify tempo-based rates. If you modulate the rate of
a tempo-based LFO, the rates will jump between the tempo-based note
values with each PatchCord increment of “1”. As an example: if the LFO
rate was set to 8/1 and you patched the Mod Wheel to control rate with a
PatchCord amount of +1, turning the Mod Wheel to maximum would
change the LFO rate to 4/1d. Refer to the chart below.
Tempo-based Rates
(based on Master Clock Tempo)
Display
octal whole note 8/1
dotted quad whole note 4/1d
octal whole note triplet 8/1t
quad whole note 4/1
dotted double whole note 2/1d
quad whole note triplet 4/1t
double whole note 2/1
dotted whole note 1/1d
L1
LFO1 SHAPE SYNC
sawtooth k
ey sync
L1
LFO1 RATE DELAY VAR
0
.08Hz 60 020
LFO Synced to 1/4 Note Clock
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