Korg modwave native User Manual

Modulation Processors
77
Curve and Mode
+100
0
–100
+100
0
–100
+100
0
–100
Bipolar Triangle Wave Unipolar Triangle Wave
Asymmetric
(not recommended)
SymmetricAsymmetric
Symmetric
Curve = 0 (original waveform)
Curve = +100
Curve = -100
Curve
[–100.00%…+100.00%]
is controls the amount of curvature, and whether the curves are concave or convex.
As you can see in the graphic examples, the curve will emphasize certain value ranges, and deemphasize others. For
example, let’s say that you are using a triangle LFO, through Curve, to modulate lter cuto. If Curve emphasizes high
values, the lter will spend more time at higher frequencies. If it emphasizes low values, the lter will spend more time
at lower frequencies.
Mode Input Curve Result
Symmetric Unipolar Positive (+) emphasizes upper value range
Negative (-) emphasizes lower value range
Bipolar Positive (+) emphasizes both upper and lower value ranges,
and deemphasizes the center
Negative (–) emphasizes center value range, around 0
Asymmetric Unipolar Positive (+) emphasizes extreme upper range, with oset
Negative (–) emphasizes extreme lower range, with oset
Bipolar Positive (+) emphasizes upper value range
Negative (–) emphasizes lower value range
Bipolar and Unipolar modulation sources
To understand Curve, it helps to understand the dierence between bipolar and unipolar modulation sources.
Bipolar sources can swing all the way from –100 to +100, with 0 in the middle. Most LFOs are bipolar, for instance; so is
Pitch Bend. Generally, bipolar modulation sources will work better with the Asymmetric mode, but Symmetric may also
produce interesting results.
Unipolar sources only go from 0 to 100, with 50 in the middle. Oen, MIDI controllers are unipolar (though you
can also select bipolar versions). Envelopes are usually programmed to be unipolar, even though the Filter and Pitch
Envelopes allow negative levels.
With unipolar sources, it’s almost always better to use the Symmetric mode; Asymmetric can cause osets and other
strange results.

Korg modwave native Specifications

General

Brand	Korg
Model	modwave native
Category	Synthesizer
Language	English