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Nord Wave User Manual v1.1
FM Algorithms
LED
LCD
Description
CR
1-OP (+FB)
Carrier only, with feedback
1
2-OP 1:1
C Modulator, same frequency
2
2-OP 2:1
C Modulator, frequency ratio 2:1
3
2-OP 3:1
C Modulator, frequency ratio 3:1
4
2-OP 4:1
C Modulator, frequency ratio 4:1
5
2-OP 5:1
C Modulator, frequency ratio 5:1
6
2-OP 6:1
C Modulator, frequency ratio 6:1
7
2-OP 7:1
C Modulator, frequency ratio 7:1
8
2-OP 8:1
C Modulator, frequency ratio 8:1
9
2-OP 9:1
C Modulator, frequency ratio 9:1
1.
2-OP 1:1 (+FB)
C Modulator, same frequency
2.
2-OP 2:1 (+FB)
C Modulator, frequency ratio 2:1
with feedback
3.
2-OP 3:1 (+FB)
C Modulator, frequency ratio 3:1
with feedback
4.
2-OP 4:1 (+FB)
C Modulator, frequency ratio 4:1
with feedback
5.
2-OP 5:1 (+FB)
C Modulator, frequency ratio 5:1
with feedback
6.
2-OP 6:1 (+FB)
C Modulator, frequency ratio 6:1
with feedback
7.
2-OP 7:1 (+FB)
C Modulator, frequency ratio 7:1
with feedback
8.
2-OP 8:1 (+FB)
C Modulator, frequency ratio 8:1
with feedback
9.
2-OP 9:1 (+FB)
C Modulator, frequency ratio 9:1
with feedback
Operators
a set-up with 2 oscillators (one Carrier and one Modulator)
is called a 2 operator FM-Synthesis, indicated as
2-OP
in
the
lcd
.
Note that a single oscillator (
•
oSc1
or
oSc2
) in this
scenario actually contains two oscillators.
FM-algorithms using only 1 operator (Carrier only) are also
available, indicated as
1-OP
in the
lcd
, and
CR
in the
led
window.
Feedback
the first operator in the chain can be given feedback to
modulate itself, creating more complex harmonics.
the
•
ShAPe
parameter is used to control both the feed-
back and FM amount simultaneously.
Shape
(Feedback)
Shape
(FM Amount)
Shape2
(FM Amount)
Shape1
(FM Amount)
Shape
(Feedback)
Carrier
Carrier
Carrier
Carrier
Modulator
OSC MIX
OSC MOD
Modulator
Modulator
an FM algorithm using Feedback is indicated with
(+FB)
in the
lcd
, and a dot (
.
) in the
led
window
.
Frequency ratio
By giving the Modulator a different frequency in rela-
tionship to the Carrier, you will get different harmonic
characteristics.
Shape
(Feedback)
Shape
(FM Amount)
Shape2
(FM Amount)
Shape1
(FM Amount)
Shape
(Feedback)
Carrier
Carrier
Carrier
Carrier
Modulator
OSC MIX
OSC MOD
Modulator
Modulator
the Image above shows the Modulator having a frequency
ratio relation of 9:1 to the frequency of the Carrier, and the
resulting waveform using a fairly high FM amount setting.
Frequency ratios are indicated by showing e.g.
•
9:1
in
the
lcd
, and simplified
9
in the
led
display.
Sine
the Sine waveform is not available as a Waveform type, but
can be generated by setting the Waveform Selector to
fm
and setting the
ShAPe
parameter to zero.
