Specifications

Chapter 5: DigiRack Real-Time TDM and RTAS Plug-Ins 45
Gate Controls
Phase Invert Inverts the phase (polarity) of the
input signal to change the 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 set-
tings of the Attack, Hold, Decay, and Range con-
trols (explained below).
Attack Sets the attack time of the Gate.
Hold Specifies a duration (in seconds or millisec-
onds) that the Gate will stay open after the ini-
tial attack cycle. This can be used as a one-shot
function to keep the Gate open for longer peri-
ods of time with a single crossing of the thresh-
old. It can also be used to prevent gate chatter
that may occur if varying input levels near the
threshold cause the Gate to open and close very
rapidly.
Decay Controls how long it takes for the Gate to
close after the signal falls below the threshold
level.
Range Sets the depth of the Gate when closed. It
has a maximum depth of –80 dB. Setting the
gate to higher range levels allows more of the
gated audio that falls below the threshold to
peek through the gate at all times. This is useful
for things such as drum leakage, where you may
want to suppress the overall drum kit sound by
a specific amount, while emphasizing the gated
instrument such as a snare.
Graph Displays the response curve set by the
Gate’s Threshold and Range settings. As you ad-
just these controls, refer to the graph to see how
the shape of this curve changes.
External Key Enables and disables side-chain
processing. Side-chain processing uses the vary-
ing amplitude of a separate reference track to
trigger limiting. See “Using a Key Input for Side-
Chain Processing” on page 16.
Key Listen When enabled, this lets you listen to
the reference track controlling the side-chain in-
put. This is often useful for fine tuning the
Gate’s settings to the Key Input.
Expander/Gate II
The Expander/Gate reduces noise by decreasing
the gain of signals that fall below a user-select-
able threshold. Expanders are particularly useful
for reducing noise or signal leakage that creeps
into recorded material as its level falls, as often
occurs in the case of headphone leakage.
Key Listen is not saved with the other plug-
in settings.
Expander/Gate II plug-in