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Effects and Effect Mode

Effects Overview

9-17

This means the compression can kick in before an attack transient arrives. In the

SoftKneeCompress and HardKneeCompress eects, delay is really only useful in feed-forward

conguration (FdbkComprs is “Out”). For other compressors, the delay can be useful in feedback

conguration (FdbkComprs is “In”). The range is 0 to 25 ms.

Ratio is the amount of gain reduction imposed on the compressed signal, adjustable from 1.0:1

(no reduction) to 100:1, and Inf:1.

Threshold is the level in dBFS (decibels relative to full scale) above which the signal begins to be

compressed. Adjustable from -79.0 to 0 dB.

MakeUpGain allows additional output gain to compensate for gain reduction in the compressor.

It is essentially the same parameter as Out Gain, with which it is summed. The minimum is -79.0,

and the maximum summed gain (MakeUpGain + Out Gain) is +24.0 dB.

Expansion

Eects containing Expanders have these controls:

Atk or Exp Atk (Attack), how fast the expander turns o when the input signal rises above the

threshold level, adjustable from 0.0 to 228.0 ms.

Rel or Exp Rel (Release), how fast the expander turns back on after the signal drops below the

threshold level, adjustable from 0 to 3000 ms.

Ratio or Exp Ratio, how much the gain is reduced below the expansion threshold, adjustable

from 1:1.0 (no expansion) to 1:17 (extreme downward expansion).

Threshold or Exp Threshold, the level below which the signal is expanded, adjustable from

-79.0 to 0 dB.

In addition, the two-segment compressors with expander have separate Ratio and Threshold

controls for each of the compression segments.

Multiband Compression

The Multiband Compression eect has Attack, Release, Smooth, Signal Delay, Ratio,

Threshold, and MakeUp Gain parameters for each of the three bands (“Low”, “Mid”, and

“High”). In addition, it has:

Crossover1 and Crossover2. These set the frequencies which divide the three compression

frequency bands. The two parameters are interchangeable, so either may contain the higher

frequency value. The range is 16 to 25088 Hz, in increments of a semitone.

Gates

SC Input lets you select which input channel(s) will control the sidechain, which is responsible

for opening and closing the gate. It can be set to L, R, or the average of the two channels,

(L+R)/2. You can use this, if you arrange the signal paths and pan controls appropriately, to gate

one mono signal with a dierent mono signal.

Gate Time is the time that the gate will stay open after the sidechain signal reaches the

Threshold. Its range is 0 to 3000ms.

Ducking reverses the action of the gate. Normally this if set to “O”, and the gate opens when

the input signal rises above the threshold. But when this is “On”, the gate closes when the input

signal rises above the threshold.