Dbx DriveRack 220i User Manual download pdf (Page 27)

Detailed Parameters

Section 3

220i

DriveRack

User Manual

Compressor On/Off

Turns the Compressor module on and off.

OverEasy (O) Off to 10

There are ten levels of OverEasy® that can be used for the limiters. The point when the com-

pressor starts to compress is the "knee." When the compressor starts to reduce the level of a

signal abruptly as it passes over the threshold, this is called "hard knee" compression.

OverEasy® (soft knee as it is sometimes called) is when the volume of the sound is compressed

gradually. OverEasy® compression starts to compress before the level of the signal reaches the

threshold and reaches full compression after the level has gone above the threshold.

OverEasy® compression, by its very nature, sounds much smoother and more natural and will

be used for most applications. When it is gentle (natural sounding or light) compression that

you are looking for, the compressor offers VariKnee™. VariKnee™ gives you ten levels of

OverEasy® compression to choose from (1 being almost hard knee and 10 being the most

OverEasy®). This lets you choose the exact knee that is needed for the dynamic effect you are

looking for.

Threshold (T) -40 to +20dBu

Threshold is the signal level at which the unit starts to compress the signal. If the level is set to

-10 dBu, than any signal larger than -10 dBu is compressed while any signal that has a level

that is lower than -10dBu is left at the same signal level. Light compression is where only the

loudest parts of the signal go over the threshold. Very heavy compression can be achieved by

setting the threshold low enough that almost the entire signal content is over the threshold. For

most signals the most natural compression is achieved when most of the signal content remains

just below the threshold and only the peaks cross the threshold.

Ratio (R) 1.0 to Inf:1

Ratio is the amount the unit reduces the signal level of the sound that is above the threshold.

A 2:1 ratio means that if the incoming signal is 2dB over the threshold the unit will compress

the signal, and outputs a signal that only goes 1dB over the threshold. For light compression

choose a lower ratio, while a heavy compression requires a higher ratio. A setting of Inf:1 makes

the compressor act as a limiter.

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Dbx DriveRack 220i User Manual Page 27