Dolby Laboratories DP600 manual . . .

Profile Descriptions
Dolby® DP600 Program Optimizer Manual 89
Profile: GXF_AC3-1 Æ GXF File with Dolby E Transcoded to Dolby Digital .ac3
Files
ProfileGXF_AC3‐1transcodesallDolbyEtrackswithinaGXFfileto.ac3files(oneforeach
programcontainedinDolbyE).Encodedoutputdataratesareautomaticallyprovisioned
ateither384kbps(forsix‐channelaudio)or192kbps(fortwo‐channelaudio).Thedialogue
normalizationvalueisalsoautomaticallyprovisionedtothecorrectvalueforallAC‐3
programscontainedintheDolbyEstream.Notethatanytwo‐channelPCMprogramming
(nonDolbyEdata)foundwithintheDolbyEtracksisalsoencodedtoaseparatesetof.ac3
files(withtheappropriatesequencenumberingfoundinthe��filenames)andautomatically
normalizedto–27LKFS.AllremainingAC‐3metadataparametersareprovisionedfrom
theAC‐3metadatawithineachprogramcontainedintheDolbyEdatafile/stream.
GXF File with
Dolby E
Process Æ Dolby E decode Æ Speech-bas ed
Loudness Estim at ion for all Dolby E program s
ÆDolby Digit al enc ode for each E program wit h
dialnorm set correct ly
Measurement Type Æ Speech-based I T U -R
BS.1770
.ac3 File
Dolby Digital (AC-3)
Program 1
dialnorm set correctly
. . .
.ac3 File
Dolby Digital (AC-3)
Program n
dialnorm set correctly