Ashly mXa-1502 12-Channel 4-Zone DSP Mixer-Amplifier - Manual (Page 16)

Gain
The gain block allows the
user to modify a signal's level
by either applying gain or
attenuation. The polarity of the
signal may also be inverted. The level control
allows for gain adjustment between +12db and
-50dB and OFF. The level fader can be adjusted
in 0.1dB increments.
Gain Parameters :
Level : Off, -50dB to +12dB in 0.1dB increments
Polarity : Normal or inverted
Gate
A noise gate can be used to minimize
unwanted, low level ambient sounds from
getting through on an individual input channel.
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 channel gates.
Gate Parameters:
Threshold
: The minimum input signal level
(also called key signal) required to open the
noise gate and allow signal to pass through.
Threshold can be set using the slide fader, text
entry box, or a drag point on the graph.
Attack : The rate at which input signal level rises
to unity gain after reaching the gate threshold.
Range : The amount of attenuation applied
to the gated signal when it remains below
threshold, sometimes referred to as "floor".
Release : The rate at which attenuation is
applied to the signal after it falls back below
gate threshold.
Advanced Mode Parameters :
Advanced mode allows the user to employ a
key filter for the gate. A key filter does not EQ
the signal passing though the gate, but rather
allows the gate threshold detector 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.
Key Frequency : This is the center frequency of
the key filter.
Key Bandwidth : This sets the bandwidth used
for the key filter, and is always on. The default
bandwidth setting is a very wide 15 octaves,
and as such has no frequency-specific effect.
To use frequency selective key threshold
detection, adjust the key bandwidth to a lower
setting and set the frequency and bandwidth
as desired.
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mXa-1502 • Operating Manual Ashly AquaControl™ Software