Fat Channel Processing - PRESONUS StudioLive RM32AI Owner's Manual

5.0 A Tour of UC Surface Features
5.7 Fat Channel

5.7.3 Fat Channel Processing

Power User Tip: Dynamic and ribbon microphones are generally lower-
output devices that require no external power source. In fact, unless a ribbon
microphone calls specifically for phantom power, sending phantom power
to it can cause severe damage. Condenser microphones are generally more
sensitive than dynamic and ribbon microphones and typically require external
+48V phantom power. Always review your microphone's documentation
to ascertain the manufacturer's recommended operating practices.
Polarity Button. Push this button to invert the polarity of the selected
channel's signal (that is, to alter the polarity by 180°). The button will illuminate,
indicating that Polarity Invert is active. This button can be used to correct audio
signals that are out of phase and are canceling/reinforcing each other.
Power User Tip: When recording with more than one open microphone,
use the polarity invert to combat phase cancellation between them.
Bus Assignment. This section has buttons for routing the channel to the Main (L/R)
and Mono (Center) output channels, using On or Off settings for each of them.
Power User Tip: StudioLive RM-series main outputs (XLR stereo and XLR
mono) let you use Left/Center/Right panning (LCR). If you want to use LCR
panning, select LCR as the Pan mode in the settings in UC Surface, and bus
the channel to both the main L/R and Center outputs. If you want it to use
normal LR stereo panning on a channel, just route it to the L/R outputs.
On the other hand, if you want to use a subwoofer in addition to the speakers
that are connected to the Main L/R outputs, leave the panning mode in LR
and route the channels you want sent to the subwoofer to the Mono bus
(Mono output). You can then use the Low Pass Filter that's available on the
Mono bus Fat Channel to dial in your desired high-frequency cutoff point.
Noise Gate/Expander. The noise gate/expander offers the following features:
On/Off Button. This turns the gate on
and off for the selected channel.
Threshold . This slider sets the level at which the gate opens.
Essentially, all signals above the threshold setting are passed
through unaffected, whereas signals below the threshold
setting are reduced in level by the amount set by the range
control. If the threshold is set all the way to the left, the gate is
turned off (always open), allowing all signals to pass through
unaffected. You can set the threshold from 0 to -84 dB.
Range. This adjusts the amount of gain reduction the
gate produces. The range can be set from 0 to -84 dB.
The Range control is not available when using the expander.
Key Filter. This slider adjusts the frequency at which the
gate will open. Setting a specific frequency, in addition to
a specific decibel level, provides more sonic shaping.
The key filter can be triggered by the selected channel or bus's signal
or by sidechaining a channel and using its signal as the source.
Power User Tip: A properly set key filter on a gate can greatly improve the overall
sound quality of a mix. For example, if you are inserting a gate on a snare-drum
mic, you may get enough bleed from the kick drum to open the gate. This is
where a key filter can come in handy. By setting the key filter to remove some
of those low frequencies, the gate won't be as apt to open for the kick drum.
Key Listen. This button engages and disengages the Key Listen
function, which lets you hear how the gate Key Filter is set.
StudioLive™ RM-Series Mixers
Owner's Manual
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