Troubleshooting guide

Modular Processors
SHURE
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P4800 System Processor Software Guide Page 46 of 108
Bypass
Click to pass signal through without the effect of the processor. When bypass is active, the button
appears lighted in red. The default setting is inactive. When bypass is active in the Peak Stop Limier,
the 1 ms of delay is not bypassed.
Bypass active
Bypass inactive
Snapshot
This feature allows you to freeze an image of the current response curve by clicking the
[Take] button and then display it in the background for comparison by clicking the
[Show] button. The [Show] button appears lighted in green when the snapshot is
displayed. For a more in-depth description of the snapshot feature, see the Snapshots
section on page 33.
Soft Knee Processors
The following examples illustrate the difference between the hard knee and soft knee compression
settings. All other settings in these examples remain identical.
A soft knee setting, pictured at left in figure 33, is useful when you are
working with high compression ratios. The soft knee gradually increases the
compression ratio from 1:1, at approximately 12dB below the threshold, up to
the specified ratio, at approximately 20dB above the
threshold. This gradual increase in ratio makes the
compression less obtrusive than with the hard knee.
The hard knee setting, pictured at right in figure 34,
immediately activates compression at the ratio you
have specified, once the signal level exceeds the
threshold. This setting is especially useful in a limiter,
because it will keep sudden peaks from exceeding the
threshold without affecting signal below the threshold.
Stereo Processors
The stereo processors have the same features and functionality as their mono counterparts, and
include some additional features.
§ Changes to settings of either of the two processor channels will be applied to the other
channel as well.
§ Both processor channels react with identical gain reduction when the input to either channel
exceeds the threshold setting.
§ Dual transfer curve meters display the channel A input level in red and the channel B input
level in blue.
§ Meter selectors allow you to alternately view the transfer curve meter for channel A, channel
B, both channels, or neither.
§ There is a threshold exceeded indicator for both the A and B channels.
Figure 33 − Soft Knee
Compression
Figure 34 − Hard
Knee Compression
Note: If the situation calls for a hard knee setting, you can conserve DSP
by using a standard processor instead of a soft knee processor.