Troubleshooting guide

Modular Processors
SHURE
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P4800 System Processor Software Guide Page 43 of 108
Compressor/Limiter
Compressors and limiters reduce the output level of the signal relative to the input level, once the input level
exceeds a certain threshold. The System Processor provides the following types of compressors and limiters:
Block Name Description
§ COMP
Compressor
§ SFT COMP
Soft Knee Compressor
§ LIM
Limiter
§ SFT LIM
Soft Knee Limiter
§ ST COMP
§ ST SFT COMP
§ ST LIM
§ ST SFT LIM
Same as above; for use on two channels that comprise a
stereo pair.
§ PEAK LIM
Peak Stop (Look Ahead) Limiter
Function
Use the compressor to scale the output of a signal so it is suitable for equipment with a narrower
dynamic range, such as an amplifier, tape deck, or loudspeaker. Use the limiter to protect the system
against sudden bursts of loudness that could potentially damage loudspeakers. By delaying the signal
1 ms, the Peak Stop Limiter has an attack time of 0 to provide even more control over transient
sounds. The compressor and limiter function similarly, however the limiter is typically set for a faster
attack time and a higher compression ratio.
Figure 32 − SFT LIM Window