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44 Dolby
®
DP570 Multichannel Audio Tool User’s Manual
Using the DP570 in DVD Mastering Typical Tasks
5.2.1 Setting the Dialogue Level
Asthemixisnearingcompletion,usethedialoguelevelindicatorsinDolbyRemote570
showninFigure 5‐2duringarepresentativeperiodofspeechtoselecttheDialogueLevel
valuefortheprogram.Themeasuredvalueoftheaudioprogramappearsinyellow;the
DialogueLevelvaluesetinthesof tware
appearsingreen.
Figure 5-2 Dialogue Level Controls
Inmostcases,selectingandmeasuringarepresentativeperiodofspeechwithinthe
programwillserveasagoodexampleoftheoveralldialoguelevelthroughoutthe
program,providedgoodmixingpracticesareobserved.Insomecasessuchas
documentaries,locationsound,andsoon,itmaybedifficulttomatch
thedialoguelevel
fromsectiontosection,andwhilethedialoguelevelindicatorontheDP570canhelp,your
earsarethebesttool.
TodetermineaDialogueLevelvaluefortheprogram,useshort‐termmeasurementsas
theyprovideameasurementoveraten‐secondperiodofprogramaudioand
donot
averagethemeasurementoveralongperiodoftime.Formoreinformationontheshort
andinfinitetermmeasurementmodes,seeMeasuringtheAverageLoudnessofIdentified
Clipsonpage 31.
PressingtheAcceptbuttonresetstheDialogueLevelparameterwithintheoutput
metadatastreamfeedingdownstreamequipmenttoequal
theyellowvalue.Thegreen
numberchangestothevalueselected.
5.2.2 Monitoring the Dialogue Level
Asyoumix,checkthedialoguelevelindicator—theyellownumbersshowninFigure 5‐2—
frequentlytobesurethattheprogramstayswithinacceptablelimits.
OnceaDialogueLevelvaluehasbeenselected,eithershort‐termorinfinitemeasurements
canbeuseddependingonyourpreference.Again,seeMeasuringtheAverageLoudness
of
IdentifiedClipsonpage 31tounderstandthedifferencesbetweenthem.
Note:For5.1programming,themeasurementchannelshouldbesettoCenter,asmostof
theimportantspeechcontentwilloccurinthischannel.MeasureboththeLeftand
Rightchannelsofstereoinput.