Audio Level, Mix-Point, Processing Blocks, And Signal Chains - Extron electronics DMP 128 User Manual

Figure 16.

audio Level, Mix-point, Processing Blocks, and signal chains

As outlined in red above (see figure 16), all control blocks on the main DSP control screen
have one of three main functions in the overall signal chain:
•
•
•
The signal chain varies depending on whether it is in the input, output, virtual bus, or
EXP bus stage. Each of the three types of signal processing channels; Input ( a , b , c ),
Output ( e , f , g ), and Virtual ( h ) shown in figure 16, consist of a series of two basic
types of control blocks specific to that chain: level control (gain a , c , trim e , and volume
control g ), and signal processors (frequency filters, feedback suppression, dynamics,
delay, ducking, AEC, AM, and loudness). Both types of control blocks are always present
in the chains. By default, gain controls are unmuted and processor blocks are bypassed
upon insertion. The default configuration can be modified in the options menu.
The EXP input- bus has only an AM processing block.
Gain, trim, mix-point, and volume blocks can be muted and processor blocks (after being
inserted) can be bypassed for signal comparison. Mutes and bypasses are shown by a
red indicator in the lower left of the block (see figure 17).
Figure 17.
b c
a
h
Control Blocks and Processor Chains
Level control (gain, trim, volume)
Mix-point (signal routing)
Signal processing (filter, AEC, feedback, dynamics, delay, duck, loudness, and
automix)
Input Gain Control muted, Dynamics Processor (AGC) Bypassed
d e f g
i j k
DMP 128 • Software Control
l
m
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