Page 14
C2
Operators Manual
C2
Configurations
There are two distinct modes of operation of the
C2
- normal compressor mode
(augmented by a sidechain equaliser section), and the De-EQ mode. To explain the
operation of these two modes and clarify the differences between them, they will be
broken down into building blocks, which are connected differently in the two modes.
The building blocks and their operation is explained below.
Input Section:
The input section is the same for both modes – the audio signal is
either converted to digital, ready for processing, or is fed directly
from a digital AES stream. Note that the digital input is a factory
fitted option only.
The signal will be split at this point – one path forms the main signal
path, the other forms the sidechain (or control) path that is used to modify the main
one – in this application to compress it.
Sidechain EQ Sections:
The signal used for controlling the main path may be
equalised prior to its use as a control signal – this enables
it to be made more or less sensitive to certain
frequencies, changing the way the compressor reacts the
audio. The degree of sensitivity may also be also be
adjusted (the Sidechain EQ Gain control) when in
compressor mode. More on this later.
This signal (suitably equalised) is then passed into the control section where it is used
to determine the degree of compression of the main signal and how this is applied.
Control Sections:
This control signal is compared against the
threshold
setting to see
if it is to start affecting the main path. Included in this section is the
ratio
control which determines how severely the main signal is
compressed as it continues over the threshold, and the
attack
and
release
times which determine how quickly the compressor reacts
and ‘leaves go’ as the threshold is crossed.
This signal is now used to directly affect the gain (in compressor mode) of the main
signal, and conceptually does so using the …
Содержание C2
Страница 1: ......
