5.1 DigiRack Plug-Ins Guide - Digidesign Support Archives

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Using a Key Input for Side Chain
Processing
You can use the side-chain processing capabilities
of the Compressor, Limiter, Gate, or Expander/Gate
to trigger any of these plug-ins
from a separate reference track or external audio
source.
By using the External Key input, you can control
the dynamics of one audio signal using the dynamics
of another signal (the key input). A typical
use for this feature is to use one instrument
to trigger gating of another: a kick drum to gate
and tighten up a bass track, a rhythm guitar to
gate a keyboard pad, and many other creative
applications.
Side-chain inputs are monophonic only.
To use a key input for side chain processing:
1 Click the Insert pop-up on the desired track to
select the desired plug-in.
2 Click the Side Chain Input pop-up and select
the input/bus that carries the audio you want to
use to trigger the plug-in.
3 Click the Key Input button. This activates side
chain processing.
4 If you want to hear the audio source you have
selected to control side chain input, click the
Key Listen button.
5 If you want to filter the Key Input so that only
certain frequencies trigger the plug-in, use the
Key HPF and Key LPF controls to select the desired
frequency range.
6 Begin playback. The plug-in is now using the
input/bus that you chose as a side chain input to
trigger its effect.
DigiRack Plug-Ins Guide
7 Adjust the plug-in’s Threshold parameter to
fine tune the side chain triggering.
8 Adjust other parameters of the plug-in to
achieve final effect that you want.
Mod Delay
The Mod Delay plug-in provides time delaybased
effects. Effects obtained through the use
of Mod Delay include slap echo, doubling, chorusing,
and flanging.
Mod Delay plug-in
There are four different Mod Delays, each of
which is capable of a different maximum delay
time:
• The Short Delay provides 1024 samples of delay
(23.2 milliseconds at 44.1 kHz or 21.3 ms
at 48 kHz).
• The Slap Delay provides 7186 samples of delay
(162 ms at 44.1 kHz or 149 ms at 48 kHz).
• The Medium Delay provides 16384 samples of
delay (371 ms at 44.1 kHz kHz or 341 ms at
48 kHz).