Cadac CDC four User Manual download pdf (Page 19)

Revision 1 2012-13CDC FOUR

Fundamentals

Although the CDC FOUR control surface and operating system has been

designed to retain the familiarity and facilities of an analogue console, there are a

number of important aspects of its operation which differ markedly from analogue

mixers. These include the following concepts:

• Assignability - a single channel strip whose controls can be assigned to any

of the internal signal channels;

• Layers – the faders can be switched to control another set of channels or

groups, resulting in a small control surface for a large conguration mixer;

• TFT screen – most of the mixer’s controls and statuses are accessible

through the built-in display as well as by using hardware controls; some mixer

functions are only available via the screen;

• Soft keys – various controls whose functions vary depending on the current

state of the display, or of other mixer settings.

Central Assignment Module

The Central Assignment Module (CAM) is essentially a single,

fully-featured channel strip, such as would be found on an

analogue mixer. The obvious differences are that potentiometers

are replaced by continuous (360°) rotary encoders, and the push-

buttons are electronically latching and internally illuminated. The

encoders have a “press” function; turning the encoder knob while

pressing it in allows a ner degree of parameter adjustment. The

use of rotary encoders means that the value of the parameter

which the control varies is not related to the physical position

of the knob – in fact, the knobs do not have a pointer of any

kind. Another implication of this system is that all the channel

parameters have default values which have nothing to do with

knob positions; these values can be regarded collectively as the

“initial state” of the channel. The actual value of each parameter

is available from the TFT display; this topic is covered in greater

detail under “Screen displays”, see page 25.

The CAM controls the mixer’s DSP section, and is used to set the

channel parameters for the following mixer sections:

• All mono mic/line channels

• Stereo inputs 1-8

• Su/jointfilesconvert/1717685/bgroups 1-4

• Aux. sends 1-8

• FX returns 1 and 2Note that unlike an analogue mixer, many of the channel

facilities found on an input channel strip are available to the output sections

of the CDC FOUR. Furthermore, there is no signicant difference in the

facilities available to stereo line input channels compared to mono mic/line

input channels.

However, it should be noted that not every channel facility is available to all types

of signal channel. The exceptions are noted in a later section of the manual, see

“Audio channel descriptions” on page 31.

SmS

LIM

LRGR

20:11:1

HI LO

LIM

THR

DLY

COMP

GATE

LVL

RAT

THR

TRIM

HPF

FREQ

PAN

AUX 1

AUX 2

AUX 3

AUX 4

AUX 5

AUX 6

AUX 7

AUX 8

FX 1

FX 2

HMF

LMF

CENTRAL ASSIGNMENT MODULE

48V

REV

HPF

AUT

VIN

BYP PST

PRE

SOLO

MUTE

PRE

∞

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Cadac CDC four User Manual Page 19

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