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The remainder of this section references the gain, trim and volume controls outlined in
figure 61 below.
acdeb
Figure 61. Gain, Trim and Volume Controls
a
Mic/Line input gain
b
Pre-mixer gain
c
Mix-point gain
d
Post-mixer trim
e
Output volume
About Setting Gain Structure
There are two approaches the system designer can take in setting up gain structure
depending upon where output volume will be controlled. The output volume of the
DMP128 may be controlled by either of the following two gain blocks:
• Volume (
e
) and,
• Pre-mixer gain (
b
)
NOTE: While the pre-mixer gain control is not in the output signal chain, it can
be used to control program level independent of mix-point levels.
In the following instructions, setup is described for output volume or pre-mixer gain when
appropriate.
DMP128 • Software Control 102