Reference Manual

CHAPTER 21. LIVE AUDIO EFFECT REFERENCE 311
Normally, the signal being gated and the input source that triggers the gate are the same
signal. But by using sidechaining, it is possible to gate a signal based on the level of another
signal. To access the Sidechain parameters, unfold the Gate window by toggling the
button in its title bar.
Enabling this section with the Sidechain button allows you to select another track from the
choosers below. This causes the selected track's signal to act as the gate's trigger, instead
of the signal that is actually being gated.
The Gain knob adjusts the level of the external sidechain's input, while the Dry/Wet knob
allows you to use a combination of sidechain and original signal as the gate's trigger. With
Dry/Wet at 100%, the gate is triggered entirely by the sidechain source. At 0%, the sidechain
is effectively bypassed. Note that increasing the gain does not increase the volume of the
source signal in the mix. The sidechain audio is only a trigger for the gate and is never
actually heard.
Sidechain gating can be used to superimpose rhythmic patterns from one source onto
another. For example, a held pad sound can be triggered with the rhythm of a drum loop
by inserting a Gate on the pad's track and choosing the drum loop's track as the sidechain
input.
21.18 Grain Delay
The Grain Delay Effect.
The Grain Delay effect slices the input signal into tiny particles (called grains) that are then
individually delayed and can also have different pitches compared to the original signal