Digi XPress Specifications Page 78

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DigiRack Plug-ins Guide72
Expander/Gate III
The Expander/Gate plug-in applies expansion
or gating to audio material, depending on the
ratio setting.
About Expansion
Expansion decreases the gain of signals that fall
below a chosen threshold. They 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.
About Gating
Gating silences signals that fall below a chosen
threshold. To enable gating, simply set the Ratio
and Range controls to their maximum values.
Expanders can be thought of as soft noise gates
since they provide a gentler way of reducing
noisy low-level signals than the typically abrupt
cutoff of a gate.
Expander/Gate III Controls
This section describes controls for the Ex-
pander/Gate plug-in.
Input/Output Level Meters
The Input and Output meters show peak signal
levels before and after dynamics processing. See
“Levels Section” on page 65 for more informa-
tion.
Expander/Gate Dynamics Graph Display
The Dynamics Graph display lets you visually
see how much expansion or gating you are ap-
plying to your audio material. See “Dynamics
Graph Display” on page 67.
Look Ahead Button
Normally, dynamics processing begins when
the level of the input signal crosses the thresh-
old. When the Look Ahead button is enabled,
dynamics processing begins 2 milliseconds be-
fore the level of the input signal crosses the
threshold.
The Look Ahead control is useful for avoiding
the loss of transients that may have been other-
wise cut off or trimmed in a signal.
Expander/Gate III
Look Ahead control
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