Troubleshooting guide

Modular Processors
SHURE
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P4800 System Processor Software Guide Page 62 of 108
Transfer Curve Meter
When you are in Live Mode, this meter depicts the signal's input level and relative output level, so you
can monitor the processor's effect on the current program material. This feature can be toggled off and
on by selecting the [Options>Transfer Curve Meter] menu option. Its default status is on.
Note: You may experience reduced software performance if you have a large number of
meters active in the System Processor software. You can selectively turn off either the
transfer curve meter or the gain reduction meter, or both, from the [Options] menu.
Threshold Slider
The position of the threshold slider corresponds to the setting in the threshold control. You can drag
this slider with the mouse, left and right along the top edge of the transfer curve graph, to change the
threshold setting.
Ratio Slider
The position of the ratio slider corresponds to the setting in the ratio control. To change the ratio
setting, drag this slider left or right along the bottom edge of the transfer curve graph, using the mouse.
Gain Reduction Meter
This meter indicates the total gain increase or reduction you are achieving on the input signal with the
current processor settings. This feature can be toggled off and on by selecting the [Options>Gain
Reduction Meter] menu option. Its default status is on.
Gain Controls
Use the gain controls to adjust the input and output gain levels. The range of available gain values is
between –12dB and +12dB in 0.5dB increments, with 0dB as the default value. You can change the
value using the conventions explained in the Faders section on page 31.
Threshold Exceeded Indicator
Signal level has exceeded the threshold
Signal level has not reached the threshold
This indicator appears lighted in yellow when
the input signal to the processor block exceeds
the specified threshold.
Threshold
This indicates the level below which the input signal gain must fall before the processor reduces it. You can
change the value by clicking on the spin buttons, typing in a specific value, or using the
threshold slider at the top edge of the transfer curve graph. The available range of values is
from –80.0VU to 0VU in 0.5VU increments, with a default value of –65.0VU for the gate
and –40.0VU for the downward expander.
Ratio
This indicates the amount of gain reduction at the processor output, relative to the input level. A ratio of
4:1, for example, means a 1dB decrease in program level results in a 4dB decrease in processor
output level. You can change the value by clicking on the spin buttons, typing in a
specific value, or using the ratio slider on the bottom edge of the transfer curve graph.
The range of available values is from 1:1 to INF:1, in increments of 1/10th, with a
default value of INF:1 for the gate and 4:1 for the downward expander.