Ashly nX8004 Operating Manual page 27

Operating Manual - nX, nXe, and nXp Power Amplifiers
Ducking At Mixer(s)
This feature is particularly useful when setting up multiple zones where only some of the output channels should be ducked
(e.g. restaurants, courtrooms, etc.). When this feature is selected, each Matrix Mixer is allowed to enable or disable the Duck-
ing on that particular output.
Noise Gate
A Noise Gate can be used to minimize unwanted, low level
signals from an individual input. Threshold is the level above
which an input signal will pass through, below which its signal
is attenuated by the Range value. Attack and Release control the
time characteristics of the gating action. Attack sets the amount
of time used to ramp the gain to unity. Release sets the time
required to attenuate the signal. The Gate may be assigned to
a Link Group to link its parameters with other Gates.
Parameters:
Threshold - The minimum signal level required to "open" the
gate and allow signal to pass through, available as text box or
as the top drag node on the graph.
Range - The amount of attenuation applied to the unwanted
signal when it remains below Threshold, sometimes referred
to as "floor". It is available as text box or as the bottom drag
node on the graph.
Attack - The rate at which the gate rises to unity gain after the
signal has reached Threshold.
Release - The rate at which the gate applies attenuation to the
signal after it falls below Threshold.
Advanced Mode Parameters:
Advanced Mode allows the user to specify a Key filter for the
gate. The key filter does not EQ the signal passing though the
gate, but rather allows the gate threshold to respond only to a
frequency band within the signal as determined by the filter. The
Key filter is a band-pass filter with selectable center frequency
and bandwidth. The Key filter is only engaged when the Key Engaged button is clicked.
Key Frequency - This is the center frequency of the key filter, use text box or drag the frequency node left or right.
Key Bandwidth - This is the bandwidth of the key filter, use the text box or right-click-drag the node left or right..
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