Steinberg HALION4 Mode D'emploi page 179

Dynamics Effects
Release
This determines how fast the Compressor effect reacts to sounds that fall below the
set threshold. The longer the set Release time, the longer the period for returning to
the original level will be.
Auto Release
Activate this to set the Release time automatically. The Compressor analyzes the input
sound continuously to find the optimal Release time. The Release knob is disabled
when Auto Release is active.
Peak – RMS
Determines whether the input signal is analyzed according to peak or RMS values or
a mixture of both. At a setting of 0 % the Compressor uses Peak sensing only and at
100 % RMS sensing only. Peak means that the Compressor directly senses the peak
level of the sound. RMS is an abbreviation for root mean square, a statistical measure
for the amplitude of sounds. RMS means that the Compressor senses the average
power of the sound. Peak sensing responds faster than RMS sensing. Typically, Peak
sensing is used for transient and RMS sensing for sustained sounds.
Limiter
The Limiter effects prevents the sound from exceeding the set output level to avoid
clipping in following effects, for example. The input and output VU meters indicate the
level before and after the Limiter. The Gain Reduction meter in the middle indicates
the current attenuation of the level.
Input
This adjusts the input level of the sound. By increasing the input level you can drive
the sound more and more into limiting.
Output
This sets the maximum output level of the sound.
Release
This sets the time that the gain needs to return to its original level. The longer the
Release time, the longer is the period for returning to the original level.
Auto
Activate this to set the Release time automatically. The Limiter analyzes the input
sound continuously to find the optimal Release time. The Release knob is disabled
when Auto Release is active.
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Effects Reference