TC Electronic C300 User Manual

C300 PROCESSING
Comp/Lim mode - C300
Wideband Compressor
The wideband/fullband compressor type is
applied in the drum programs. 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 program
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 C300 programs giving you excellent
starting points. Threshold and Ratio are set on
the front.
De-Ess
The De-Ess programs also utilize the multi-
band compression type and is fine-tuned to
reduces sibilance from “s” sounds that can be
far too dominant.
18
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 C300 limiter is a peak type limiter
and it is automatically active on all program
types using the multi-band compression style.
(see pages 14-15).
Though a peak limiter is applied on all
multiband compression programs it is
worth noticing that C300 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 - C300
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 att
ack 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.
C300 Gate programs
All programs except for Hiss/Hum trigger
dedicated Gate/Expander settings tuned to the
various program materials.
Hiss & Hum programs
Dedicated programs for hiss and hum
elimination.

TC Electronic C300 Specifications

Operating Environment

operating temperature	32° F to 122° F (0° C to 50° C)
storage temperature	-22° F to 167° F (-30° C to 70° C)
humidity	Max. 90 % non-condensing

Power

mains voltage	100 to 240 VAC, 50 to 60 Hz (auto-select)
power consumption	<15 W

Digital Input and Output

sample rates	48 kHz. (44.1 kHz only @ Digital Input)
processing delay	0.08 ms @ 48 kHz
frequency response DIO	DC to 23.9 kHz ± 0.01 dB @ 48 kHz

Analog Inputs

impedance, bal / unbal	20 kOhm / 11 kOhm
max. input level @ 0 dBFS	+21 dBu
A to D delay	0.9 ms @ 48 kHz

Analog Outputs

impedance	35 Ohm
max. output level	+21 dBu
D to A delay	0.58 ms @ 48 kHz

Weight and Dimensions

dimensions	19" x 1.75" x 4.2" (483 x 44 x 105.6 mm)
weight	3.3 lb. (1.5 kg)