Compressor
criatom_tools_atomcraft_dsp_effect_comp.png

Basic function

A compressor controls the dynamic range of a signal.

Channels

  • Input: 1-8ch
  • Output: Outputs the input channels as they are
    Add effects to all the input channels.

Features

  • By keeping the volume changes gentle when the level of the input signal exceeds a threshold, the volume can be kept constant.
  • You can also create an effect sounding a bit like saturation by applying a compressor with extreme parameters.
  • When used jointly with the "amplitude analyzer", a side chain compressor can be achieved, which will process the input signal based on the amplitude of a second signal from another bus.

Effect of split EQ

The compressor is also implemented with split EQ.
When split EQ is used, the amplitude of the signal after equalization is compressed.
For example, when using Low Pass, the compression is applied to the signal resulting from the low pass filtering.

Specific effect of split EQ

criatom_tools_atomcraft_dsp_effect_comp_split_eq.png
  1. Divide the audio input into part (1) where the EQ is applied and part (2) where the EQ is not applied.
  2. Apply amplitude compression only to part (1) (RMS value is used here).
  3. Recombine part (1) and part (2), and output the audio.

Compressor settings (Plugin GUI)

Item Description Initial value Min Max
Threshold RMS (THRESHOLD) The compressor is activated when the average volume(RMS) exceeds this level. -12.50 dB -96.00 dB 0.00 dB
Ratio (RATIO) This value determines how much the volume is compressed when the input level exceeds the threshold value. 1.50 1.00 10000.00 (∞)
Attack time (ATTACK) The amount of time it takes the compressor to reach its maximum effect. 10.00 msec 0.00 msec 3000.00 msec
Release time (RELEASE) The amount of time it takes for the effect to release (i.e., to stop changing the input signal). 48.00 msec 0.00 msec 50000.00 msec
Gain (GAIN) Determines the output level after compression. 4.00 dB -96.00 dB 48.00 dB
Surround Link (SURROUND LINK) Adjusts the impact of the compression between surround channels.
Set to 1.0 to reduce the differences between the channels.
Set to 0.0 to make each channel works independently.
0.00 0.00 1.00
Split EQ Type (Type) EQ type. Select from None, Low Pass, High Pass, Bandpass or Notch. None
Split EQ Frequency (Frequency) EQ's frequency. 8000 Hz 24 Hz 24000 Hz
Split EQ Q value (Q) EQ's Q value. 0.60 0.1 10.0

Compressor settings (CRI Atom Craft Inspector)

Item Description Initial value Min Max
Side Chain Input Bus The compression is applied based on the signal level of the "amplitude analyzer" set on another Bus.
When it is set to "None", it depends on the signal level of the previous effect result.
None