Lectrosonics DMPA12 - Manual (Page 16)

DMPA12 Installation Guide
LECTROSONICS, INC. 16
Additional Settings and
Functions
In many cases the installer is required to make addition-
al settings and/or adjustments to enable functions such
as auxiliary remote controls using pots and switches.
Since some of these additional functions affect the ba-
sic signal flow and levels, it is important for the installer
to understand what is available and how some of the
most important processes work.
Compressor and Limiter
The Compressor and Limiter have individual tabs for
setup, but since these functions are so closely related
in operation, LEDs in the upper part of the GUI indicate
the real time status of each process on every channel.
For a full explanation of these functions, refer the help
file included with the GUI or the Reference Manual
included on the supplied CD.
Compressor settings and parameters
Limiter settings and parameters
Front Panel Gain Controls
The gain of input and output audio channels is adjust-
able from the front panel of the DMPA12. This feature is
useful for system setup and adjustment, and may be left
enabled to allow users to “touch up” gains as needed
during operation.
Any or all of the front panel gain controls may be
“locked out” to prevent unauthorized changes to the
system. This is done using the Control Panel GUI (in
Device Setup Menu) or LecNet2 serial commands.
Changes made to the gain control lock settings take
effect immediately and are global in scope - the
same settings are in effect no matter what memory
“preset” is loaded.
Also under Device Setup are dialogue boxes to adjust
the range of the front panel control and a special option
that mutes the channel when the control is fully coun-
ter-clockwise. The minimum gain position has a special
meaning - the channel will be turned “off” when the control
is rotated to the fully counter-clockwise position.
NOTE: When the Front Panel Mute feature is
enabled, the minimum gain position has a special
meaning. The channel will be muted and the
associated activity indicator will blink RED to
warn the user that no audio is being passed. This
feature can be controlled using the supplied GUI
control panel or the serial command “fpmten.”
Gain can be increased or decreased within a range which
is centered around 0 dB (unity) gain. The range of adjust-
ment for each channel is individually programmable using
the Control Panel GUI (in Device Setup Menu) or LecNet2
serial commands. Changes made to the gain range
settings take effect immediately and are global in
scope - the same settings are in effect no matter
what memory “preset” is loaded. The default range is
30 dB (+/- 15 dB).
Front panel level controls can be locked out or enabled
with check boxes in a dialogue box under Device Setup.