Extron Electronics DMP 128 User Guide - Manual (Page 57)

Ducking configuration
Ducking is configured in a dialog box that opens when an
active ducking processor block is double-clicked.
a Current Source
Shows the input selected as the ducking source. Ducker
settings affect the input channel shown here. When a
ducker dialog is opened, the current source defaults to
that channel. The current source can also be selected via
the priority readout/source selector (see below).
b Enable Source mic/Line checkbox
When checked, ducking is enabled for the current source
and the ducker processor block is lit. When cleared,
ducking is disabled for the current source and the ducker
processor block is unlit.
c Duck: (targets)
Shows all potential input targets. Only inputs checked are
ducked. The current source is not available as a target (a
source cannot duck itself). If the current source has been
designated as a target of another input channel, that input
channel is not available (a target cannot be the source).
d by (dB):
Individual attenuation settings for each duck target in dB.
The default is 20.0 dB. If additional attenuation of a target
is required, increase this value.
The attenuation range is 80.0 to 0.0 dB in 0.1 dB
increments.
e Priority
Displays the hierarchy of ducking source to duck targets.
Priority levels are displayed in tree fashion. Input channels that are targets being ducked by a source are
shown as indented below the source. Any input channel displayed in the tree is an active link. Click an
input channel to select that channel as the current source. The current source indicator (a) reflects the
selected input channel.
f Settings:
Used to configure the parameter settings for the ducker source. When a ducker block is copied, these
settings are transferred.
Threshold — Sets the input signal level, in dB, the ducking source must exceed before ducking
begins. If ducking does not occur quickly enough to avoid loss of speech or program material from the
ducking source, decrease this setting. If ducking occurs too soon, allowing background noise to trigger
ducking, increase the setting.
The range is -60 to 0 dB in 1 dB increments. Default is -30 dB.
Attack Time — Adjusts the time to duck the targets once the threshold is exceeded.
The range is 0 to 3000 milliseconds in 1 millisecond increments. Default is 1 millisecond.
Hold Time — Determines the time, in milliseconds, after a ducking source signal drops below the
threshold before ducking ceases.
The range is 0 to 10000 milliseconds in 1 millisecond increments. Default is 1000 milliseconds
(1 second).
Release — Determines how long, in milliseconds, after the ducking source level is below the threshold
and the hold time is met, the ducking targets take to restore signal levels.
The range is 10 to 10000 milliseconds in 1 millisecond increments. Default is 1000 milliseconds
(1 second).
a
b
e
f
c d
DMP 128 • Software Control 51