Dolby Laboratories DP570 5.2 Typical Tasks

42 Dolby® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 in DVD Mas teri ng
5.2 Typical Tasks
TheDP570isusedinthemonitorchaintoemulateaconsumerʹslisteningenvironment.
5.2.1 Setting the Dialogue Level
Asthemixisnearingcompletion,usethedialoguelevelindicatorsinDolbyRemote570
showninFigure5‐2duringarepresentativeperiodofspeechtoselecttheDialogueLevel
Setvaluefortheprogram.���Themeasuredvalueoftheaudioprogramappearsinyello w;
thedialoguelevelvaluesetinthesoftwareappearsingreen.
Figure5‐2
Figure 5-2 Dialogue Level Controls
Inmostcases,selectingandmeasuringarepresentativeperiodofspeechwithinthe
programwillserveasagoodexampleoftheoveralldialoguelevelthroughoutthe
program,providedgoodmixingpracticesareobserved.Insomecasessuchas
documentaries,locationsound,andsoon,itmaybedifficulttomatchthedialoguelevel
fromsectiontosection,andwhilethedialoguelevelindicatorontheDP570canhelp,your
earsarethebesttool.
TodetermineaDialogueLevelvaluefortheprogram,useshort‐termmeasurementsas
theyprovideameasurementovera10‐secondperiodofprogramaudioanddonotaverage
themeasurementoveralongperiodoftime.Formoreinformationonthemeasurement
modes,seeSection4.7.2.
PressingtheAcceptbuttonresetstheDialogueLevelparameterwithintheoutput
metadatastreamfeedingdownstreamequipmenttoequaltheyellowvalue.Thegreen
numberchangestothevalueselected.
5.2.2 Monitoring the Dialogue Level
Asyoumix,checkthedialoguelevelindicator—theyellownumbersshowninFigure5‐2—
frequentlytobesurethattheprogramstayswithinacceptablelimits.
Note: For5.1programming,themeasurementchannelshouldbesettoCenter,asmostof
theimportantspeechcontentwilloccurinthischannel.MeasureboththeLeftand
Rightchannelsofstereoinput.