Dolby Laboratories DP570 DP572 DP570 DP571

26 Dolby® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 Features
4.3.3 Using External Metadata
Whenusingexternalmetadata,makecertainthatthevaluesarecorrectfortheprogram.
Particularlywhenyouuseexternalprogramconfigurations,itisimportanttoensurethat
thenumberofprogramsandthenumberofchannelsineachprogramarecorrectlyset.
MonitoringwiththeDP570shouldalertyoutoanyproblems.
Example 2—Adding a Second Program or Changing a Program
SignalandmetadataflowfromthisexampleareshowninFigure4‐2.
We’llassumeyou receivea5.1‐channelprogramencodedinDolbyE,andyouwantto
createastereo‐compatiblemixforitandreencodebothontoanotherDolbyEmaster.Inthis
casethemetadataforthesecondprogramdoesnotyetexist,butyouwanttoretainthe
metadatafromthefirstprogram.Furthermore,theprogramconfigurationfromthe
originalstreammustbechangedbecauseitindicatesasingle5.1programinsteadofthe
5.1+2configurationyouarecreating.
Afteryoucreatethestereomix,youreencodethe5.1‐channelprogramalongwiththe
stereoprogramusingaDP571.
Tomonitorthereencodedprogram:
1. ClicktheIntradiobuttontoselectaninternalprogramconfigurationsource,and
choose5.1+2fromthedrop‐downlistinFigure2‐2.
2. SelecteitherexternalmetadatasourceforProgram1.
3. ClickProgramSelectbutton2 inthesoftware.
4. ClickInttoselectaninternalprogrammetadatasource,andselecttheparametersfor
thesecondprogrammetadata.
Figure4‐2
Figure4‐3
Figure 4-2 Adding a Second Program
DP572 DP570 DP571
Digital
Output
Router
Output
MetadataOut
Digital
Input
Metadata
In
Metadata
In
Metadata
Out
Digital
Input
MetadataAdjustment
• Change Program Config
to5.1+2 (internal source)
•Setparameters for new
two-channelprogram
D 563P
In Out
6
5.1 5.1+2
8
2