
34 Dolby® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 Features
Example
YousettheemulatortoFull(nodownmix)withnocompression(thedefaultforthe
Customselection).Youthenauditionafewauthoringpresetsuntilyoufindthe
combinationthatsuitstheprogrambest.Next,youswitchamongtheemulatorpresetsto
makesurethemetadatayouhaveselectedworksinavariety ofdownmixsettings.Now
youknowyouhavesettingsthatmaximizethemixingcapabilitiesforallyourpotential
listeners.
Byusingpresets,youbothsavetimeandincreasetheaccuracyofyourchecking,since
therearemultiplevariablesinboththeauthoringandemulatorsections.
4.11 Using Lt/Rt Input ModeTheDP570providesaseparateinput(Lt/Rt)forasignalencodedinDolbySurround.When
youactivatetheLt/RtInputmode,theemulatorisfedonlybytheLt/Rtinput,andthe
DP570sendsaProLogic®decodedsignaltoyourmonitorsystem.Youcannotaltersettings
forthesignalfromtheLt/Rtinput,butyoucanusetheinputtoensurethatanLt/Rtmixis
performingasexpected.
ForanexampleofmonitoringaDolbySurroundprogramwhilecreatingmetadatafora
5.1‐channelprogram,seeUsingtheDP570inPostproductiononpage51.
4.12 Channel Mapping and Input RoutingTable 4 ‐3showshowtheDP570routesinputchannelstoemulatoroutputchannels.
Channelmappingchangesautomaticallyaccordingtotheprogramconfiguration,and
reflectshowthechannelswillbeconnectedtoaDolbyDigitalencoder.
TheDP570inputrouterenablesyoutorerouteinputchannelstoconformtothe
automaticallyassignedchannelmapping.
Theprogramnumber(1–8)identifiestheindividualprogramsassociatedwitheach
channel.So,theentry2C/2SmeansʺProgram2,Centerchannel/Program2,Surround
channel.ʺ
Caution: ChangestometadataparametersmaybemadewhileinLt/RtInputmode,but
youcannotheartheeffectofthesechanges,becausetheemulatorisdedicatedto
Lt/Rtinputsignal.Therefore,youshouldnotchangemetadatavaluesinLt/Rt
Inputmode.
Table 4-3 Input Channel Routings
Program
Configuration 1/2 3/4 5/6 7/8
5.1+2 1L/1R 1C/1LFE 1Ls/1Rs 2L/2R
5.1+2×11L/1R 1C/1LFE 1Ls/1Rs 2C/3C
4+4 1L/1R 1C/1S 2C/2S 2L/2R
4+2×2 1L/1R 1C/1S 3L/3R 2L/2R
4+2+2×1 1L/1R 1C/1S 3C/4C 2L/2R
4+4×1 1L/1R 1C/1S 4C/5C 2C/3C