Signal Flow And Processing; Signal Flow; Level Adjustments - Lab.gruppen PLM series Operation Manual

8. Signal Flow and Processing

8. Signal Flow and Processing

8.1 Signal Flow

Figure 8.1 is a graphic presentation of the signal flow inside a PLM. As is readily apparent, the PLM is an
unusually sophisticated system comprising many different subsections of both digital and analog technolo-
gies. To realize the full potential of the PLM, it is important to understand the possibilities and limitations
within the system, with particular regard to the multiple points for muting as well as adjustment of gain or
attenuation.

8.1.1 Level adjustments

Because of the full integration of the Lake processing, the PLM offers five separate points in the signal chain
where signal level can be adjusted. It is critical to grasp the significance of the various level adjustments in
order to obtain optimum audio performance. Numbers refer to points in the signal flow diagram.
Users may adjust the input levels to, and the output levels from, the Lake Processing system (MODULE
input and MODULE output
ments can be made from either the front panel display or the Lake Controller software.
The per-channel attenuation
ATTENUATION.
Figure 8.1: PLM Signal Flow Diagram (Part 1)
1
Analog 1/2
AES 1
AES 2
Dante X
Dante Y
1
Analog 1/2
AES 1
AES 2
Dante X
Dante Y
32
PLM Series Operation Manual rev 1.1.3
). The PLM power stage gain
can only be made from the front panel by selecting MENU > MODULE >
2
Input
Router
Input
1
Mixer A
(Mute)
2
Input
Router Input
2 Mixer B
(Mute)
may be adjusted as well. All three adjust-
3
Module:
Gain
EQ
Phase Rev
Mute
3
Module:
Gain
EQ
Phase Rev
Mute
Output EQ
Output EQ
Delay
Output EQ
Output EQ
Delay
Output EQ
Output EQ
4
Module Output:
Gain/Level
Phase Rev
Mute
Module Output:
Gain/Level
Phase Rev
Mute
Module Output:
Gain/Level
Phase Rev
Mute
Module Output:
Gain/Level
Phase Rev
Mute
Module Output:
Gain/Level
Phase Rev
Mute
Module Output:
Gain/Level
Phase Rev
Mute