LMn Manual
Table Of Contents
Interface and feature reference
LM2n / LM6n Manual 17
Radar page
Left Descriptor Right Descriptor
Plug-in running time
Peak IndicatorRadar display
Momentary loudness
Fig. 14.: The LM2n / LM6n Radar page
The LM2n / LM6n Radar measures loudness over
time.
The Radar display is a visualization of Short Term
Loudness. The time represented by one Radar
revolution is set using the Radar Speed param-
eter on the Settings page.
In the Radar display, Target Loudness is repre-
sented by the border between green and yellow,
while the Low Level point is marked by the bor-
der between green and blue.
You should keep the outer ring in the green area,
and around 12 o’clock on the average. Excur-
sions into the blue or the yellow area should be
balanced, and not only go in one direction.
The numbers associated with the outer ring
may be referenced at either maximum loudness
(LUFS selected), or have a zero point set at the
12 o’clock position (LU selected). Set the Loud-
ness Unit parameter on the Settings page to
“LUFS” or “LU/LUFS” accordingly. Either way of
looking at loudness is valid. LUFS reading is in
line with how peak level is typically measured in
a digital system, and compatible with Dolby AC3
and E metadata, while the LU approach calls for
a certain target Loudness to have been prede-
termined.
For the Loudness Unit parameter and the differ-
ence between “LUFS” and “LKFS”, see “Loud-
ness Unit parameter” on page 24.
The Outer ring surrounding the actual Radar dis-
play shows Momentary Loudness. The value
shown at the 12 o’clock position is the Target
Loudness. The range is defined using the Mo-
mentary Range parameter on the Settings page.
Please note that LM2n / LM6n incorporates an
intelligent gate, which discriminates between
foreground and background material of a pro-
gram. Consequently, a measure doesn’t start
before audio has been identified. It also pauses
the measurement during periods of only back-
ground noise, and in the fade-out of a music
track.
Peak Indicator
In the upper right corner of the page is a Peak in-
dicator. Use the Peak indicator parameter on the
Settings page to define at which level the peak
indicator should light up.
Plug-in running time
The plug-in running time displayed on the right
edge will be reset when you click the Reset but-
ton.