User manual

Attenuation
18
Attenuation
To Attenuate a signal is simply to decrease its
amplitude. Attenuating an Audio Signal has the
eect of making the signal softer/quieter.
Attenuating a Control Voltage signal has the
eect of decreasing the Modulation Depth,
reducing the amount of eect the source signal
has over the destination.
Examples
0-Coast has a Multiply Attenuvertor, which
controls the Depth of Modulation to its
respective parameter (more on that later) For
CV Input Attenuators, such as OVERTONE, zero
amplitude is at full counterclockwise, resulting
in no modulation regardless of the signal input.
+10V
0V
Figure 25:
Random Stepped Voltage
Figure 26:
Random Stepped Voltage
(Attenuated)
+10V
0V
Time
Time
Figure 27:
Random Stepped Voltage
(Fully Attenuated = 0V)
+10V
0V
Time
Inversion
To invert a signal is simply to turn it "upside
down." For example, inverting a +5V oset results
in a -5V oset. Inverting a positive-going
sequence (Fig. 28) results in a negative-going
sequence with the same "intervals" between
steps (Fig. 29). When applied to a melody, this is
a classic technique of Counterpoint.
Inverting Audio Signals has no eect on their
sound in most cases, except for when mixing
them with related signals, or when inverting
them multiple times per cycle (see Make Noise
modDemix, “Ring Modulation.”)
An
Attenuverter allows a signal to be inverted
or non-inverted at a user-denable percentage of
its original amplitude, with Zero at 12 o’clock. CV
inputs, such as MULTIPLY CV, have onboard
Attenuverters in order to easily Modulate a
parameter in either direction, at any Depth.
+10V
0V
0V
Figure 28:
Random Stepped Voltage
(Attenuverted)
Time
+10V
0V
Figure 29:
Random Stepped Voltage
(Inverted)
Time
0V