NORD MODULAR G2 V1.1
11. Module reference: Level group
Page 173
Balanced (Ring) Modulation:
As you can see in the figures above, the main practical difference between amplitude- and ring modula-
tion is the sideband amplitudes and the appearance of the carrier wave in the frequency spectrum. An-
other difference is that the resulting ring modulation wave phase-shifts 180 degrees every half modulator
period. If more complex waveforms are used for amplitude- or ring modulation, sidebands will be gener-
ated for each partial of the wave. See also
"Common Level module parameters”
.
E
E
E
E
N
N
N
NV
V
V
V
-F
-F
-F
-F
O
O
O
OL
L
L
LL
L
L
LO
O
O
OW
W
W
W
This module will extract an envelope
from a signal, i.e follow the amplitude
envelope of an incoming signal. When a
signal at the input of this module in-
creases in amplitude, this module “follows" the amplitude with the time set as Attack time. When a signal
decreases, it “follows" the amplitude with the time set as Release time. The input of this module is a
Dy-
namic Control/Audio
signal input and the output signal is a
Positive Unipolar
control signal. See also
"Common Level module parameters”
.
time
amplitude
amplitude
frequency
Fig 4. Carrier wave
f
C
time
amplitude
amplitude
frequency
Fig 5. Balanced Modulator wave
time
amplitude
amplitude
frequency
Fig 6. Balanced Modulation
The side bands appear on each
side of the carrier wave on the
frequencies: f
C
-f
M
and f
C
+f
M
