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© 2003 Shure Incorporated DFR22 Software Guide 50
Compressor/Limiter
Compressor/Limiter
Compressors and limiters reduce the output level of the signal relative to the input level, once the input level exceeds a cer-
tain threshold. The Audio Processor provides the following types of compressors and limiters:
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.
Block Name Description
COMP Compressor
Sft COMP Soft Knee Compressor
LIM Limiter
Sft LIM Soft Knee Limiter
ST COMP
Same as above: for use on two
channels that are a stereo pair.
Sft ST COMP
ST LIM
Sft ST LIM
PEAK LIM Peak Stop (look ahead) Limiter
1
2
3
4
5
67
FIGURE 7-2: Sft ST COMP Window