Specifications

Chapter 2: Working with Real-Time Plug-Ins 17
To use a Key Input for side-chain processing:
1 From the Key Input menu, choose the input
or bus carrying the audio you want to use to trig-
ger the plug-in.
2 Click External Key to activate side-chain pro-
cessing.
3 To hear the audio source you have selected to
control side-chain input, click Key Listen.
4 To filter the Key Input so that only specific fre-
quencies trigger the plug-in, use the Key HPF
and Key LPF controls (if available) to select the
desired frequency range.
5 Begin playback. The plug-in uses the input or
bus that you chose as a Key Input to trigger its
effect.
6 Adjust the plug-in’s Threshold parameter (if
available) to fine-tune Key Input triggering.
7 Adjust other parameters to achieve the desired
effect.
Automating Plug-Ins
You can automate changes to plug-in parame-
ters. Since Pro Tools creates a separate playlist
for each plug-in parameter that you automate,
you can later edit and modify each automated
parameter individually. This allows you to build
up complex automation in stages.
To enable automation:
1 Open the Plug-In window for the plug-in you
want to automate.
2 Click the Auto button, choose the parameters
to automate, and click Add, then OK.
– or –
Command-Control-Option-click (Macintosh) or
Control-Alt-Start-click (Windows) the parame-
ter’s slider or knob and choose Enable Automa-
tion for each parameter you want to automate.
To create automation for a stereo plug-in
with separate controls for each channel,
(such as Mod Delay), record the automation
for one channel then copy and paste it to the
other channel.
Plug-In automation dialog
Enabling plug-in automation