TC Electronic C400XL, Руководство пользователя

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C400XL PROCESSING
Comp/Lim mode - C400XL
Wideband Compressor
The wideband/fullband compressor type is
applied in the drum presets. The compression
is trigged by the entire signal.
Multiband Compressor
Where the wideband compressor excels in
limited frequency areas the multi-band
compression excels on more complex preset
material with a wider frequency range. This
being both composite material but also sources
such as vocals, horns and guitar that despite
their immediate simple structure can suffer from
the “breathing syndrome” where the
compression of the lower frequency bands
ends up controlling the upper frequencies also.
The multi-band compression style splits the
signal in three frequency areas and
compresses these bands individually. Attack
and Release settings are prepared and tuned
on the C400XL presets giving you excellent
starting points. Threshold and Ratio are set on
the front.
De-Ess
The De-Ess presets also utilize the multi-band
compression type and is fine-tuned to reduces
sibilance from “s” sounds that can be far too
dominant.
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For the compressor to be used as a musical
tool the set attack times are relatively long.
(from 10 to 200ms) This gives the disadvantage
that certain peaks can pass. Therefore a limiter
with an attack time of as little as 0.1ms and a
ratio of 1:infinity prevents close to all
overshoots.
For different purposes there are different Limiter
types. The C400XL limiter is a peak type limiter
and it is automatically active on all preset types
using the multi-band compression style. (see
pages 14-15).
Though a peak limiter is applied on all
multiband compression presets (not on
de-ess presets), it is worth noticing that
C400XL holds an exceptional tolerant
headroom structure. In combination with the
Peak Limiter that ensures that occasional
peaks are tamed you can actually operate very
close to max without any risks of overshoots.
Gate/Expander mode -
C400XL
Set the mode selector to “GATE/EXP”
position.
Noise, whether it is hiss, hum or just
background noise is always a parameter to
evaluate and deal with. Initially noise must of
course be reduced to a minimum from the
source, but with a Gate/expander it is also
possible to reduce the noise on channels when
no significant signal is present.
Basics
A Gate - or downward expander, - is used to
attenuate the signal when the signal is below a
certain threshold. When talking about attack
and release times in reference to a noise gate:
- the attack time is the time is takes to for the
gate to “open” when the signal rises above the
threshold and...
- the release time is the time it takes for the
gate to reach the specified attenuation.
C400XL Gate presets
All presets except for Hiss/Hum trigger
dedicated Gate/Expander settings tuned to the
various preset materials.
Hiss & Hum presets
Dedicated presets for hiss and hum elimination.