Loadlibrary ™ And Fingerprints; Super Modules - Lab.gruppen PLM series Operation Manual

Plm series powered loudspeaker management systems
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8. Signal Flow and Processing
**Only partial implementation of these Module
types is possible within a single PLM, as each
PLM is limited to two or four outputs. The Output
Router of the processor can be used to select
which four Module outputs are routed to the PLM power
outputs. Further outputs can be realized in other Frames
using the Super Modules feature.
The PLM's default configuration is 2 x 1-in/2-out, using two Modules, Module A and Module B. Each
Module is configured as provide two auxiliary outputs, providing a total of four module outputs. It is impor-
tant to understand, though, the consequences of assigning alternative configurations.
Example 1:
Reconfiguring Module A with a 3-way module file (e.g. a Classic 3-way crossover) results in Module A
needing processing capacity for three output channels. This leaves Module B similarly with processing
capacity for three output channels. The total number of processed outputs remains six and the PLM Frame
will display two Modules.
Example 2:
Reconfiguring Module A with a 4-way module file (Classic 4-way crossover) results in Module A needing
processing power for four outputs. To achieve this, Module A requires additional processing for one output
channel from Module B. Module B therefore is reduced to two outputs. The total number of processed
outputs remains six and the PLM Frame will display two Modules. Module A as a 4-way and Module B as
either a 2-way or 2-Aux.
Detailed information relating to loading Module files and subsequent manipulation of the Modules can be
found in the Dolby Lake Controller User Manual, chapter 7.5.
8.3.1 LoadLibrary
In addition to the standard loudspeaker presets (Module files), the Lake Controller also includes a set of
enhanced Module files specifically for use with the PLM Series.
Termed the LoadLibrary, these supplementary PLM Module files incorporate both the standard Lake DSP
parameters as well as data relating specifically to the PLMs. LoadLibrary Module files provide parameter
settings for the PLM's Amplifier Gain and ISVPL limiter. Additionally, LoadLibrary loudspeaker types also
may include data pertaining to the electrical characteristics of that particular loudspeaker.
The data set relating to the loudspeaker's electrical characteristics is used to enable load verification
(LoadSmart) and monitoring facilities (SpeakerSafe) to be performed on the PLM. This data set is termed
a Fingerprint. When a PLM-specific loudspeaker type is loaded, its Fingerprint load characteristics are
included. These load characteristics are stored in a file with a ".mdl" suffix and are loaded simultaneously
with the module file.
LoadLibrary Modules and standard Module files are cross-compatible, although when a LoadLibrary Module
is loaded into a legacy Lake product the extra data within it is ignored.

8.3.2 Super Modules

A Super Module allows the user to control multiple Modules of the same type, distributed across multiple
Frames, as a single entity within the Lake Controller software. Any changes made within the Super Module
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PLM Series Operation Manual rev 1.1.3
and Fingerprints

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