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• compressors with soft-knee characteristic—the compression action comes in gradually
as the signal level approaches the threshold
• compressors with hard-knee characteristic—the compression action comes in
abruptly when the signal reaches the threshold
• expanders
• multiband compressors that break the signal up into three frequency bands and
compress them all separately
• sidechains or output EQs
• reverbs and compressors in combination
• gates
• gated reverbs
All of the Compression effects use these parameters:
FdbkComprs (Feedback Compression) selects whether to use feed-forward (set this to
"Out") or feed-back (set this to "In") compression. The feed-forward configuration uses the
input signal as a side-chain source, which is useful when the compressor has to act really
quickly. The feed-back configuration uses the compressor output as the side-chain source,
which lends itself to more subtle, but not as quick-reacting, compression.
Atk (Attack) Time for the compressor is adjustable from 0.0 to 228.0 ms. Rel (Release) Time
for the compressor is adjustable from 0 to 3000 ms.
SmoothTime smooths the output of the expander's envelope detector by putting a lowpass
filter in the control signal path. Smoothing will affect the Attack or Release times only when
this parameter is longer than one of the other times. The range is 0.0 to 228.0 ms.
Signal Dly (Delay) puts a small delay in the signal relative to the sidechain processing, so
that the compressor (or gate) "knows" what the input signal is going to be before it has
to act on it. This means the compression can kick in before an attack transient arrives. In
the SoftKneeCompress and HardKneeCompress effects, delay is really only useful in feed-
forward configuration (FdbkComprs is "Out"). For other compressors, the delay can be
useful in feedback configuration (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
Effects containing Expanders have these controls:
The Effects Chain Editor
Effects Parameters
8-11
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