REAKTOR SPARK – 37
When the button is alight, it means that the controller destination is receiving the LFO modu-
lation signal. How the LFO modulates the controller is reflected graphically in the fader’s
movements. The amount of LFO modulation to the destinations is dictated by the
lFo a
Mount
K
nob
. It controls the peak to peak amplitude of the LFO signal. If the destination is positioned
in the middle of its full range, an
lFo a
Mount
setting of 1.0 would move the controller over
its entire range.
The
lFo r
ate
K
nob
controls the frequency of the LFO. The units of the
lFo r
ate
depend on
the state of the
lFo S
ync
b
utton
. If
lFo S
ync
is off,
lFo r
ate
is given in Hz. If
lFo S
ync
is
on, the
lFo r
ate
is given in oscillations per beat. The
K
ey
S
ync
b
utton
causes the LFO to
be reset to zero at every note-on event. If
K
ey
S
ync
is off and
lFo S
ync
is on, the LFO phase
also is synchronized to the song position. See
ranD p
araMeter
for a description of the note-
on event. The static phase of the LFO is controlled by the
lFo p
haSe
K
nob
. It shifts the LFO
phase in relation to the song position when
K
ey
S
ync
is off. When
K
ey
S
ync
is off, the
lFo
p
haSe
K
nob
determines the phase of the LFO at a note-on event. An
lFo p
haSe
of -1 corre-
sponds to the zero crossing of the waveform’s falling ramp. Similarly, -0.5 corresponds to the
lower peak of the LFO waveform, 0 to the zero crossing of the rising ramp, +0.5 to the upper
peak, and +1 again to the zero crossing the falling ramp.
To give you more control over the shape of the LFO waveform, the
c
lip
, c
lip
S
yM
, and
t
ri
S
yM
p
araMeterS
are can be manipulated. The qualitative effect that the latter two parameters have
on the LFO waveform can be seen in the
c
lip
S
yM
and
t
ri
S
yM
F
ielDS
.
The original waveform of the LFO is a triangle. The symmetry of the two ramps of the triangle
can be set using the
t
ri
S
yM
F
ielD
. Positive values increase the speed of the rising ramp which
yields a falling sawtooth for a value of +1, a symmetric triangle for 0, and a rising sawtooth
for -1 as the
t
ri
S
yM
value.
The
c
lip
K
nob
dictates the amount of clipping of the LFO waveform. At zero it’s a triangle
waveform and with increasing values it becomes more like a rectangular waveform. The ef-
fect of the clipping on the LFO waveform can further be manipulated by changing the clip-
ping symmetry. This is done with the
c
lip
S
yM
Field. At positive values the upper part of the
waveform, for negative values the lower part of the waveform is clipped harder. When
c
lip
S
yM
is set to +1 there is no clipping at the negative part of the waveform, and for -1 there is
no clipping at the positive part of the waveform.
Summary of Contents for Reaktor Spark
Page 1: ...MANUAL...