Owner manual

LM5/LM5D & AM6 -TDM / 7
ENGLISHENGLISH
LOUDNESS HISTORY: RADAR
The Loudness Radar shows a history of loudness over time. The loudness “landscape”
may be used to judge if loudness emphasis is put where you want it to be: If dialog
segments are balanced against action parts, if the chorus of a song has a lift against
the verse, if the audience is too loud in a gameshow, or maybe as a target to aim for
during a live transition etc.
Fig. 5, Different types of program shown on the Radar.
Left: 5.1 movie:
Pirates of the Caribbean on a 12 minute per revolution Radar: Low Loudness Range.
Center:
German news broadcast on a 4 minute per revolution Radar: Medium Loudness
Range.
Right:
Madonna’s Hung Up pop on a one minute per resolution Radar: High Loudness Range.
The duration of one radar revolution may be set between 1 minute and 24 hours. The
Radar has 3, 4, 6, 8, 10 or 12 dB between each concentric circle, while the 0 LU
point is always marked as the border between green and yellow at the bold concentric
circle, see Fig. 3. The 0 LU point is set on the Prefs page, typically between -12 and
-24 LUFS.
The“TransportControls”(lowerleftonthedisplay)areusedtomaketheRadarrun,
pause or reset. Note that these controls in LM5D appear as shown in Fig. 3.
The OBS indicator is lit to show certain inter-channel anomalies. Such conditions may
be defined on the Prefs page. The OBS indicator would typically trigger the operator to
switch to PPM page for a closer look of what’s going on.
The Peak indicator is lit to show that at least one channel is exceeding its true-peak
max. The threshold of the Peak Indicator is defined on the Prefs page, and recalled
with an LM5D preset.