Fat Channel: Dynamics Processing And Eq - PRESONUS StudioLive 24.4.2 Owner's Manual

4 Controls
4.1 The Fat Channel

4.1.3 Fat Channel: Dynamics Processing and EQ

The main function of the Fat Channel is to provide dynamics processing and filtering for every
input and output on the StudioLive. The rotary encoders work in conjunction with the meters
directly above them to adjust the dynamics processing and EQ. The Fat Channel's processing
section consists of five parts: High-Pass filter, Noise Gate, Compressor, Limiter, and parametric
EQ. Each can be turned on or off and controlled separately. The signal flows as follows:
The Pan control for each input or output bus is set on the Fat Channel.
Phase Reverses the Phase of
Reverse the Selected Channel.
Button
Push this button to invert the phase of
the selected channel's signal (that is,
to alter the phase by 180°). The button
will illuminate, indicating that the
phase reverse is active. The Phase
Reverse button can be used to correct
audio signals that are out of phase
and cancelling/reinforcing each other.
Phase reverse is only available on
the 24 channels of the input bus.
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PreSonus StudioLive ™ 24.4.2
High Pass Adjusts the High Pass Filter.
Filter
The High Pass Filter section consists of
an encoder and a meter. You will
notice that the there is a frequency
range to the left of the meter. The
high-pass filter's threshold can be set
from 24 Hz to 1 kHz. When the meter
is set to its lowest point, the filter is
off.
Remember that all frequencies
below a high-pass filter's
threshold are attenuated. See
Section 8.3.1 for more details.
The slope of the High Pass
Filter is -6dB/octave.
The high-pass filter is available
on the 16 channels of the input
bus, the 6 Auxes, both internal
FX buses, and both FX returns.
Owner's Manual
Fat Channel Gate Section
Gate On/Off Turns the Gate On and Off for the
Button Selected Channel.
This button engages and disengages
the gate for the selected channel. It
will illuminate to indicate that the
gate has been enabled.
The gate is available for all input and
output buses.
Gate Key Enables Key Listen in the Solo Bus.
Listen
Button
This button engages and disengages
the Key Listen function in the solo
bus. It will illuminate to indicate that
the Key Listen is active. When Key
Listen is enabled, and the Selected
channel is soloed, you will be able to
monitor what is being removed by
the gate, using the Control Room
outputs.
Gate Turns the Noise Gate into an
Expander Expander.
Button
The StudioLive allows you to choose
between an expander and a noise
gate for each channel or output. By
default, the Expander button will be
enabled.
In practice, expanders and noise
gates are used almost identically.
The main difference is that an
expander is smoother and more
gradual, so that it is easier to set the
attack and release times correctly.
Controls 4
Fat Channel 4.1
Gate Key Sets and Displays the Frequency at
Filter Which the Gate Will Open.
This encoder sets, and the meter
displays, the frequency at which the
gate will open. Setting a specific
frequency, in addition to a specific
decibel level, provides more sonic
shaping.
A properly set Key Filter on a gate can
greatly improve the overall sound
quality of a mix. For example, if you
are miking a bass amp and are picking
up a bit of the kick drum from that
mic, setting the gate to open at the
frequency of the kick drum, combined
with a fast attack and release, can
tighten the rhythm section. Increase
the release time to loosen the feel.
Gate Sets and Displays the Threshold of
Threshold the Gate for the Selected Channel.
This encoder sets, and the meter
displays, the gate thresh old for the
selected channel. The threshold
determines the level at which the
gate will open. Essentially, all signals
above the threshold setting are
passed through unaffected. You can
set the threshold from 0 to -56 dB.
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