36 Dolby® DP570 Multichannel Audio Tool User’s Manual
Using the DP570 Features Using Lt/Rt Input Mode

4.10.2 Emulator-Only Presets

Emulatorpresetsareparticularlyusefulforcheckingspecificcombinationsofdownmix
andcompressionmodes,perhapsonadifferentspeakeroutput.Forexample,youcan
auditioncurrentmetadatasettingsfora5.1channelprograminFullmode(nodownmix)
withnocompression(thedefaultfortheCustomselection),thencheckthemonodownmix
inRFmodeonthemonospeakeroutputinoneclickwithoutalteringthemetadatasettings.
Onceyouselectthelisteningparameters,chooseapresetnumberunderUserPresets,and
underType chooseEmulator.

4.10.3 All Settings Presets

Tosaveacombinationofauthoringandemulatorsettingsasapreset,selectAllunderType
whensavingthepreset.
Presetsthatincludebothauthoringandemulatorsettingsdonotdisplayanyletterafterthe
presetnumberonthedisplay.

4.10.4 Using Different Preset Types to Audition Settings

Ifyouareassigningmetadatatoaprogram,thedifferentpresettypescanbeusedin
sequencetospeedyourprocess.
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 Mode

TheDP570providesaseparateinput(Lt/Rt)forasignalencodedinDolbySurround.When
youactivatetheLt/RtInputmode,theemulatorisfedonlybytheLt/Rtinput,andthe
DP570sendsaProLogic®decodedsignaltoyourmonitorsystem.Youcannotaltersettings
forthesignalfromtheLt/Rtinput,butyoucanusetheinputtoensurethatanLt/Rtmixis
performingasexpected.
!
Caution:ChangestometadataparametersmaybemadewhileinLt/RtInputmode,but
youcannotheartheeffectofthesechanges,becausetheemulatorisdedicated
toLt/Rtinputsignal.Therefore,youshouldnotchangemetadatavaluesin
Lt/RtInputmode.