DigiDesign Trillium Lane Labs, Руководство пользователя, Страница: 16 / 114

Trillium Lane Labs Plug-ins Guide 10
nal. Sound weird? It is. Reverse-feedback is a
strange and paradoxical concept. It can lead to
strange and chaotic behavior if not well-tamed.
In fact, at least one well known and popular
hardware compressor that uses a reverse feed-
Back topology becomes marginally unstable at
extreme compression settings. Despite this
sometimes unpredictable behavior, the reverse
feedBack model produces a desirable and
unique compression sound.
TL Aggro adds modern digital conveniences to
the reverse feedBack model. Precise bass com-
pensation provides for improved tracking of
bass heavy instruments or a complete stereo
mix. TL Aggro provides linked stereo operation
to preserve stereo imaging as well as full side-
chain support. A tube drive module adds addi-
tional tube-style distortion if desired.
TL Aggro uses a program dependent release
which provides more natural sounding com-
pression. In essence, the program dependent re-
lease works to slow down the release time of
compressor so that it more smoothly rides the
average loudness of the audio material.
The most unique feature of TL Aggro is its
Threshold control. Most reverse-feedback com-
pressors do not implement a Threshold control
typical to non-FET compressors. Instead, they
provide an input control that increases the
amount of compression as the unit is driven
harder. However, an input control adjustment is
often less intuitive than a Threshold control.
Implementing a Threshold control into the op-
eration of TL Aggro has two specific side-effects.
At the extreme setting of a high threshold, high
ratio, fast attack, and a slow release, TL Aggro
can overshoot in compression and become
“sticky” with a high gain reduction. Sonically,
this sounds like “pops” in the output signal. In
more technical terms, TL Aggro is becoming
marginally unstable. In this scenario you can al-
leviate the problem by doing one or more of the
following:
• Lower the Threshold
• Reduce the Ratio
• Reduce the Attack
• Increase the Release
The second side effect is that for a given set of
Ratio and Attack settings, the compressor has a
finite range of available gain reduction. At some
cutoff point on the Threshold knob, you might
find that compressor ceases to apply anymore
compression to the signal. To acquire more
compression range, increase the Ratio slider, or
alternatively increase the Attack speed.
The reverse-feedback model combined with the
Threshold control and additional features like
Bass Compensation and Tube Drive gives
TL Aggro a wide range of compression styles
once you understand how it operates. The abil-
ity to adjust threshold gives TL Aggro a distinc-
tive advantage over traditional reverse feedBack
designs, both in terms of functionality and
sonic character.