Table of Contents
Advertisement
The screenshot above shows an example curve of the calculated MPX power
[MPX Power 60 s] (orange). For convenient analysis and set up the graph allows to display a second
MPX curve [MPX Power User] (green) with a user defined integration time. This is especially useful to
see why the MPX Limiter starts working although the MPX power has not reached threshold.
The purple curve shows the gain reduction action of the MPX Limiter. The center white line represents
the selected MPX Limiter reference.
Program
Graph
Enable MPX Power User
User Integration Time (s) [1 ... 40]
Time Range (min)
Recent Measurement
Duration
MPX Max (dBr)
In the next section the operator can set the audio relevant parameters of the FM conditioning process:
[Program 1 / Program 2]
Selects which of the two programs will be displayed on the graph
[OFF / ON]
Enables the display of the user-defined curve
This is only a measurement parameter that has no influence on the
MPX Limiter processing
[1 / 2 / 5 / 10 / 20 / 30]
Sets the time scale for the MPX power display. The Current
Measurement displays the numerical values of the MPX power
measurement:
Current Measurement
Reset Max
Duration
MPX Power 60s (dBr)
MPX Max (dBr)
Pre-Emphasis Limiter (%) bar graph to show
elapsed time since <reset mpx max> was depressed
maximum MPX power value detected
FM Conditioner
Setup Gain (dB)
Pre-Emphasis
Headroom (dB)
MPX Limiter Profile
True Peak Limiter
Profile
Max True Peak (dBTP) [read only]
58
D*AP4
<reset mpx max>
resets Duration and
MPX Max value
since reset
current MPX power
maximum value
since reset
the amount of high
frequency filtering
applied
[ON / OFF]
[-4.0 ... 0.0 ... 10.0]
can be used to adapt
loudness processed
signals to MPX criteria
or level matching
[0.0 ... 2.0 ... 15.0]
[Soft / Mid / Hard]
[0 / 1 Live / 2 Speech /
3 Pop / 4 Uni / 5 / 6
Classic /
7 / 8 / 9]
Advertisement
Table of Contents
