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lM6
Basic Use
LM6makesuseofauniquewayofvisualizingshort-termloudness,loudnesshistory,andlong-termstatisticaldescriptors.
Itmaybeusedwithmono,stereoand5.1materialforanytypeofprogrammaterial.
PresstheRadarkeytobringuptheRadarpage.Thispagewillbeusedmostofthetime.Thebasicfunctionalityofthe
RadarpageisshowninFig3.
Fig 3 - Radar page features of LM6 in System6000
Target Loudness is displayed at 12 o’clock of the outer
ring, and at the bold circle of the radar indicated also by the
transition from green to yellow. The descriptors Loudness
Range and Program Loudness, are the yellow numbers in
the lower part of the display. Press the Reset key to reset
Radar and Descriptors.
The“TransportControls”,PauseandReset,areusedto
maketheradaranddescriptormeasurementsrun,pause
andreset.Pressthe“Main”keytochangepresetname
andforadjustingmoreparameters.Pressthe“Setup”
keytochangesetupparameters.Presetscanbestored
specifying target loudness, noise floor, overload conditions
etc using normal System6000 preset handling procedures.
Radar Page
Current Loudness: Outer Ring
The outer ring of the Radar page displays Momentary
loudness.The0LUpoint(i.e.TargetLoudness)isat12
o’clock,andmarkedbytheborderbetweengreenand
yellow,whiletheLowLevelpointismarkedbytheborder
betweengreenandblue.The“0LUEquals”and“Low
LevelBelow”parametersarefoundontheSetuppage.For
instance,if0LUissetat-22LUFS,andLowLevelisset
at-20LU,thecolorcodingofFig3applies.
Theusershouldbeinstructedtokeeptheouterringin
thegreenarea,andaround12o’clockontheaverage.
Excursionsintotheblueortheyellowareashouldbe
balanced, and not only go in one direction.
The numbers associated with the outer ring may be
referenced at either maximum loudness, or have a zero
pointsetsetatTargetLevel.Choose“LUFS”or“LU”atthe
Loudness Scale selection on the Main page depending on
yourpreference.Eitherwayoflookingatloudnessisvalid.
LUFSreadingisinlinewithhowpeaklevelistypically
measured in a digital system, and compatible with Dolby
AC3andEmetadata,whiletheLUapproachcallsfora
certainTargetLoudnesstohavebeenpredetermined,like
e.g.aVUmeter.
Notehow“LUFS”insomecountriesiscalled“LKFS”,but
thetwoareidentical.Areadingof,forinstance,-25.0LUFS
istheprecisesameas-25.0LKFS.