Dolby Laboratories DP600 Profile: WAV/E_STITCH_AC3-2 Adaptive PCM/Dolby E (337M .wav) to Dolby Digital (.ac3)

78 Dolby® DP600 Program Optimizer Manual
DP600 Program Optimizer Detailed Profile Descriptions
Profile: WAV/E_STITCH_AC3-2 Æ Adaptive PCM/Dolby E (337M .wav) to Dolby
Digital (.ac3)
ProfileWAV/E _ST ITC H_ AC3 ‐2transcodesa5.116‐bitDolbyEfile(formattedperSMPTE
337Mwrappedina16‐bit.wavfilecontainer)toan.ac3file.Theencodedoutputdatarate
isautomaticallyprovisionedto384kbps.Anytwo‐channelPCMprogramming(thatis,not
DolbyEdata)detectedwithinthesource.wavfile(thatis,withintheDolbyE337M.wav)is
alsoautomaticallyencodedtothe.ac3formatwithanacmodof2/0andseamlesslystitched
(inthepropersequence)intothefinal.ac3file(thatis,alongwiththe5.1[3/2L].ac3,if
applicable).Asaresult,thisprofilecreatesacontinuous.ac3filewithseamlessacmod
metadatachanges(thatis,2/0to5.1to2/0,andsoon)thatcorrespondtotheoriginalsource
filetransitionsfromtwo‐channelPCMtoDolbyEandviceversa.
Profile: WAV/E_WAV/AC3-1 Æ Dolby E (337M Formatted .wav) to Dolby Digital
(AC-3) (16-Bit 337M/340M Formatted .wav)
ProfileWAV/E _WAV/ AC 3‐1encodesaDolbyEfileformattedperSMPTE337Mwrapped
ina.wavfilecontainertosingleormultiple.wavextensiblefilescontainingDolbyDigital
(AC‐3)dataformattedperSMPTE337M/340M.TheoutputDolbyDigitaldatacontainedin
the16‐bit.wavextensiblefilesalsocontainsthecorrectdialoguenormalizationvalue
indicatedforeachprogram.Encodedoutputdataratesareautomaticallyprovisionedat
either384kbps(forsix‐channelaudio)or192kbps(fortwo‐channelaudio).Allremaining
metadataparametersfollowtheAC‐3metadataforeachprogramcontainedintheDolby
Edatafile/stream.Notethatthisprofilesupportsonlyfilescontainingeither5.1or5.1+2
DolbyEdata
Note: Thisprofilesupportsonly16‐bitDolbyEfilescontaining5.1DolbyEdataand/or
two‐channel16‐bit.wavPCMfiles.Inaddition,alloutputfilesappend-stitched to
thefilename.
WAVE w/
SMPTE 337M
formatted Dolby E
and/or 2-channel
PCM WAVE
Process Æ Dolby E and/ or 2 -c hannel P C M
to seamless Dolby Digital (AC-3)
with 2/0 <-> 3/2L m etadat a t rans itions
(if applicable)
(stitched) .ac3 File
Dolby Digital (AC-3)
Process Æ Dolby E to Dolby Digital (AC-3)
Measurement Type Æ Speech- bas ed
ITU-R BS.1770
Dialnorm Metadata C orrect ion
WAVE w/
SMPTE 337M
formatted Dolby E
16-bit WAV E E x tens ible File
w/ SMPTE 337M/340 M
formatted Dolby D igi tal ( A C-3)
Program 1
. . .
16-bit WAV E E x tens ible File
w/ SMPTE 337M/340 M
formatted Dolby D igi tal ( A C-3)
Program n