Arturia COMP DIODE-609, Руководство пользователя

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3.2. Understanding the Comp DIODE-609 Signal Flow
The Comp DIODE-609 is a compressor/limiter effect plug-in specially tailored for bus
tasks. As we stated in the Introduction, bus effects tend to be a little more complex (both
in functionalities as well as their inner workings) than their channel counterparts. Being
inspired from classic units featured in iconic mixers of the seventies, it keeps the simplicity
of those units. This means that, although its musicality makes it suitable for bus mixing,
it is simple to operate and understand, and you can (and probably should) also use it in
regular audio channels. However, bear in mind this is a compressor/limiter mainly thought
for overall sound sculpting.
Let's take a look at the inside, to understand a little more about Comp DIODE-609:
When the audio signal enters the unit, it is split in three paths. The first one is the Dry path.
The second is the Wet path, which is routed through the different processing modules of the
plug-in.
There is a third path, that is used solely for detection purposes. This is the Side-Chain (SC)
path, which may use the signal coming from the Input or an external side-chain signal.
The signal routed through the Wet path enters the Input Drive, which works as a preamp
before the signal goes to the Compressor Module. It also induces a certain amount of
saturation to the signal when it is above 0.00 dB.
After this stage, the signal reaches the Compressor module. Compression will happen
according to the set parameters, driven by the Side-Chain signal, in either stereo mode
(in which case compression will happen equally on both sides, controlled by the average
volume of both side-chain channels) or dual mono mode (in which case each channel will
be compressed differently and controlled by its correspondent side-chain channel).
After passing through the Compressor Module, the signal goes through the Limiter Module,
where it will be limited, again according to the set parameters, and also controlled by the
side-chain signal in exactly the same way as in the Compressor module.
The Side-Chain signal may be routed through the Look Ahead module (in which case
some latency will be induced, due to the nature look ahead works), or bypass it and
be routed through the SC EQ/Filter module. This module output can only be used in the
Compressor module. Therefore, the side-chain signal used for limiting purposes will always
be unprocessed, as reflected in the signal-flow diagram above. The SC EQ/Filter module
can be bypassed, in which case, also the side-chain signal used for compression will be
unprocessed.
7 Arturia - User Manual Comp DIODE-609 - Comp DIODE-609 OVERVIEW