Sidechain; Midi Related Modulators - Native Instruments Razor Manual

5.15.4

Sidechain

The 'Sidechain' signal is the result of the upper modulator scaling the lower modulator. A
classic example is an envelope that scales an LFO, so the LFO can be faded in and out.
The upper modulator is always unipolar. That means its value is always positive in the range
0..1. Bipolar Modulators like LFOs which normally goes from -1 to 1 are shifted and scaled to
fit in the range 0..1. So scaling an LFO with an envelope is different than to scale an envelope
with an LFO. In the first case the result will be bipolar in the second unipolar.
Little sidechain trick: If both modulators are set to 'none' the 'Amount' value is send out so it
can be used as a macro control. That is a control that is modulating several targets at once to
realize morphing like effects for instance. It can be used to integrate a midi controller that is
not part of the modulation source list of RAZOR. In that case the 'Amount' knob must be
midi-learned to that controller.
Fig. 5.69 Sidechain.
▪ Upper Modulator Selector: Selects a modulator that scales the lower modulator.
▪ Lower Modulator Selector: Selects a modulator that is scaled by the upper modulator.
AMOUNT: Sets the amount of scaling. Set to 0 leaves the lower modulator like it is. Set to
▪
1 the lower modulator is multiplied by upper modulator. Set to -1 the lower modulator
is multiplied by the inverted upper modulator. The inversion will change the value
range 0 ..1 into 1 .. 0.
Classic examples: For a LFO with attack & decay, select an envelope with zero sustain level as
upper modulator and a LFO as lower modulator. Set the amount: to 100. For a unipolar Pulse
LFO with attack & decay select a LFO with pulse shape as upper modulator and an envelope
with zero sustain level as lower modulator. Set the amount to 100.
5.15.5

MIDI related modulators

VELOCITY: Note-on velocity from the MIDI keyboard.
▪
MODULATION WHEEL: Controller signal sent from the MIDI modulation wheel.
▪
PITCH BEND: Controller signal send from the MIDI pitch bend wheel.
▪
Overview of RAZOR Ensemble
Modulators
RAZOR - Manual - 69