Dolby Laboratories DP600 Profile: WAV/E_PCM-2 Dolby E (337M Formatted .wav) to .wav Extensible PCM (with Metadata Chunk), Profile: WAV/E_STITCH_AC3-1 Adaptive PCM/Dolby E (337M .wav) to Dolby Digital (.ac3)

Profile Descriptions

Dolby® DP600 Program Optimizer Manual 77

Profile: WAV/E_PCM-2 Æ Dolby E (337M Formatted .wav) to .wav Extensible PCM

(with Metadata Chunk)

ProfileWAV/E _PC M‐2decodesaDolbyEfileformattedperSMPTE337Mwrappedina

.wavfilecontainertoasingle.wavextensiblePCMfile.Theoutput.wavfilealsocontainsa

Dolbymetadatachunkwiththecorrectdialoguenormalizationvalueindicatedforeach

program.Notethattheoutputfilemaycontainsingleormultipleprograms,dependingon

theconfigurationoftheDolbyEfilefromwhichitwasgenerated.

Profile: WAV/E_STITCH_AC3-1 Æ Adaptive PCM/Dolby E (337M .wav) to Dolby

Digital (.ac3)

ProfileWAV/E_STITCH_AC3‐1transcodes5.1ora5.1+220‐bitDolby Efiles(formattedper

SMPTE337Mwrappedina24‐bit.wavfilecontainer)to.ac3 files.Theencodedoutputdata

ratesareautomaticallyprovisionedassix‐channelandtwo‐channelprogramsat384kbps.

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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.

Note: Thisprofilesupports20‐bit Dolby Efilescontainingeither5.1or5.1+2DolbyEdata

and/ortwo‐channel24‐bit.wav PCMfiles.Asaresult,ifthesystemprocessesa

24‐bit2‐channel.wavPCMfileusingthisprofile,itcreatesasingle.ac3file.In

addition,alloutputfilesappend-stitchedtothefilename.

WAVE w/

SMPTE 337M

formatted Dolby E

Process Æ Dolby E decode Æ Speech-bas ed

Loudness Estimat i on and dialnorm c orrection

for all Dolby E programs

Measurement Type Æ Speech-based I T U -R

BS.1770

Multiprogram WAVE

Extensible File (PCM)

w/ Metadata C hunk

dialnorm set correctl y

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 F ile

Dolby Digital (AC-3)

Program 1

. . .

(stitched) .ac3 F ile

Dolby Digital (AC-3)

Program n