5.1 DigiRack Plug-Ins Guide - Digidesign Support Archives

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Release Controls how long it takes for the Limiter
to be fully deactivated after the input signal
drops below the threshold level. In general, if
you use heavy limiting, you should use proportionally
longer release times in order to avoid
pumping which may occur when the Limiter is
forced to jump back and forth between limited
and unlimited signal levels. Lengthening the release
time will help smooth these changes in
level by introducing a lag in the ramp-up/down
time of attenuation. Use shorter release times on
material with fewer peaks which do not occur in
close proximity to each other.
Graph Displays the response curve set by the
Limiter’s Threshold setting. As you adjust these
parameters, refer to the graph to see how the
shape of this curve changes. This will allow you
to see the effect of your settings.
External Key Enables and disables side chain
processing. Side chain processing allows the
Limiter to listen to the varying amplitude of a
separate reference track and use it to trigger limiting.
See “Using a Key Input for Side Chain Processing”
on page 34.
Key Listen When enabled, this allows you to listen
to the reference track controlling the side
chain input. This is often useful for fine tuning
the Limiter’s settings to the key input. Key Listen
auditions the right audio channel on TDM
and RTAS versions of the Limiter.
DigiRack Plug-Ins Guide
Gate II
Gate II plug-in
The Gate (also known as a noise gate) allows a
signal above the selected threshold to be passed
through to the output at unity gain, without dynamic
processing. Once the input signal falls below
the threshold level, the gating shuts down
the signal by fully or partially attenuating the
output. In this way, the desired signal is allowed
to pass, but unwanted signal is not. The Gate is
useful for noise removal on individual tracks,
and can be used for special effects such as cutting
off a reverb tail.
Gate Parameters
Phase Invert Inverts the phase (polarity) of the
input signal, allowing you to change frequency
response characteristics between multi-miked
sources or to correct for miswired microphone
cables.
Gating Indicates the amount of reduction in dB.
Threshold Sets the threshold level. Signals that
exceed this level will pass through. Signals that
are below it will be gated, depending on the settings
of the Attack, Hold, Decay, and Range parameters
(explained below).