Dsp signal chain – Extron Electronics MLS 608 D Series User Guide User Manual

Page 34

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DSP Signal Chain

The DSP signal chain is in a fixed order and each processor block inserts only one category
of processor. However, the signal chain is also flexible in that a variety of processor types
can be inserted per processor category.

Processor blocks are placed in the signal chain pre- and post-switcher to perform specific
tasks. There are level control blocks, signal processor blocks, and mix-point blocks (with
level control).

Processor blocks

Processor blocks, though performing different functions, have several common elements.

z

Insert — All blocks (except level controls) may be inserted by right-clicking on the
desired box and selecting from the context menu or by double-clicking and selecting.

z

Remove a process — Active processors can be removed by right-clicking on the
box and selecting Delete or by selecting the block and pressing <Delete> on the
keyboard. An active processor may be replaced by right-clicking and inserting a new
processor. A warning will appear to indicate the previous processor is about to be
replaced.

z

Mute — When a level block (gain, trim or volume) is muted, all signal flow is blocked.
When mute is active a red mark appears in the lower left of the block. Mix-point mute
is indicated by shadowing the mix-point.

z

Bypass — When bypass is active, signal flow passes through the block without
processing, regardless of the settings. When bypass is removed, the signal will be
processed according to the parameter settings. A red mark appears in the lower left of
the block (shown below) to indicate it has been inserted, but is currently bypassed.

Line input processor blocks

3

2

1

6

5

4

Pre-switcher input signal chain elements shown above, from left to right, are as follows:

a

Gain,

b

Filter,

c

Dynamics (1),

d

Dynamics (2),

e

Delay,

f

Trim

a

Gain (GAIN) — Each line input channel GAIN block opens a Stereo Line Gain dialog,

with the exception of input 4, which opens a Mono Line Gain dialog. The Stereo Line Gain
dialog provides stereo left-channel and right-channel faders. The Mono Line Gain dialog
provides a mono fader. Each fader control has a range of -18 dB to +24 dB and a level
setting text field is located below the fader.

Left-channel and right-channel Mute buttons independently mute the left and right
channels to the stereo bus. As a mono channel, the input 4 Mono Line Gain dialog has a
single Mute button.

NOTE:

• Inputs 1 through 4 are analog (ANG GAIN block).
• Inputs 5 through 8 are digital (DIG GAIN block) but can be configured to
accept either a digital (default) or an analog 2-channel input stream.
• Input 4 is a mono input

.

MLS 608 D Series • Operation

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