Dolby Laboratories DP570 Stereo System User Manual


 
28 Dolby
®
DP570 Multichannel Audio Tool User’s Manual
Using the DP570 Features Generating and Adjusting Metadata
Example 1—Overriding an Individual Parameter Value
We’llassumeyouareusinganexternalmetadatastream.TheoutputoftheDP570is
feedingaDP571orDP569.Youwanttoaddacompressionprofilebecausenonewas
originallyincluded.Todoso:
1. Selecttheprogramyouwishtochange.
2. ClicktheDynamicRangemetadatatabontheDolbyRemote570.
3. Clicktheradiobuttontochangethesour ceoftheLineModeCompressionfrom
externaltointernal.
Youcannowselectoneofthefivecompressionprofiles(forexample,FilmLight).
4.3.3 Using External Metadata
Whenusingexternalmetadata,makecertainthatthevaluesarecorrectfortheprogram.
Particularlywhenyouuseexternalprogramconfigurations,itisimportanttoensurethat
thenumberofprogramsandthenumberofchannelsineachprogramarecorrectlyset.
MonitoringwiththeDP570shouldalertyoutoany
problems.
Example 2—Adding a Second Program or Changing a Program
SignalandmetadataflowfromthisexampleareshowninFigure 42.
We’llassumeyoureceivea5.1channelprogramencodedinDolbyE,andyouwantto
createastereocompatiblemixforitandreencodebothontoanotherDolbyEmaster.Inthis
casethemetadataforthesecond
programdoesnotyetexist,butyouwanttoretainthe
metadatafromthefirstprogram.Furthermore,theprogramconfigurationfromthe
originalstreammustbechangedbecauseitindicatesasingle5.1programinsteadofthe5.1
+2configurationyouarecreating.
Afteryoucreatethestereomix,you
reencodethe5.1channelprogramalongwiththe
stereoprogramusingaDP571.
Tomonitorthereencodedprogram:
1. ClicktheIntradiobuttontoselectaninternalprogramconfigurationsource,and
choose5.1+2fromthedropdownlistinFigure 22.
2. SelecteitherexternalmetadatasourceforProgram1.
3. Click
ProgramSelectbutton2 inthesoftware.
4. ClickInttoselectaninternalprogrammetadatasource,andselecttheparametersfor
thesecondprogrammetadata.