Ashly 3.04 Operating Manual page 27

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
Ducking 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 attenua-
tion 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..
Operating Manual - nX, nXe, and nXp Power Amplifiers
27