Dolby Laboratories DP570 6.2.1 Measuring and Setting Dialogue Level

Typic al Ta sks
Dolby® DP570 Multichannel Audio Tool User’s Manual 47
Figure6‐2
Figure 6-2 Typical Downmix Parameters
Further,youcanassesswhethertheannouncerʹsvoicewillsurviveduringaProLogic®or
ProLogicIIdecodefromastereodownmixbyselectingProLogicwhiledownmixingto
stereo.Whileassessingthemixduringdownmixing,themixercanmakeadjustmentsin
ordertoensure���thatthe5.1mixprovidedwillsoundgoodinallmannerofhome
environments,frommonotostereoto5.1.
6.2.1 Measuring and Setting Dialogue Level
DecideonaDialogueLevelSetvalueforthebroadcastandrefertothedialoguelevel
indicatorsduringperiodsofrepresentativespeechduringtheshow.Themeasuredvalue
fromprogrammaterialappearsinyellownumbers(–26inFigure 6‐3).Thedialoguelevel
metadatavalueinthesoftwareappearsingreennumbers(–27inFigure 6‐3).
Figure6‐3
Figure 6-3 Dialogue Level Controls
Tochangethevalueinthesoftware,presstheAcceptbutton.Thesystemwillsetthe
parameterautomatically.
Inmostcases,short‐termmeasurementsarebestforlivemixingastheyprovidea
measurementforeach10‐secondperiodofprogramaudio.Formoreinformationonthe
measurementmodes,seeSection4.7.2.
For5.1programming,measuretheCenterchannel,asmostoftheimportantspeechcontent
occurshere.Forstereoprograms,measureboththeLeftandRightchannels.