Inc. Program Optimizer Manual

Profile Descriptions
Dolby
®
DP600 Program Optimizer Manual 71
Profile: EC3_PCM-1 Æ Dolby Digital Plus (E-AC-3) to .wav Extensible PCM (with
Metadata Chunk)
ProfileEC3_PCM‐1decodesan.ec3(DolbyDigitalPlus)filetoa.wavextensiblefile.The
outputfilealsocontainsaDolbymetadatachunk.NotethattheE‐AC‐3decoderoperating
modeisLinemode,withscalefactorssetto1.0.
Profile: EC3_PCM-2 Æ Dolby Digital Plus (E-AC-3) to .wav Extensible PCM (with
Metadata Chunk)
ProfileEC3_PCM‐2decodesan.ec3 (DolbyDigitalPlus)filetoa.wavextensiblefile.The
outputfilealsocontainsaDolbymetadatachunk.
Profile: PCM_AC3-1 Æ .wav PCM to Dolby Digital (AC-3) Encoding with
Speech-Based Loudness Estimation and dialnorm Provisioning
ProfilePCM_AC3‐1encodesPCM.wavfilestoDolbyDigital(AC‐3)withthecorrect
dialoguenormalizationvalue.Note thatonlytwo‐orsix‐channelfilesaresupportedinthis
profile,wheretheAC‐3encoder
acmodvalueiseitherconfiguredthroughthenchannels
fieldinthe
.wavformatchunkortheacmodfieldwithintheDolbymetadatachunk(if
present).Encodedoutputdataratesareadaptivelyprovisionedtoeithersixchannelsat
either384kbps(forsix‐channelaudio)or192kbps(fortwo‐channelaudio).Allremaining
metadataparametersaresettodefaultvaluesorprovisionedthroughtheDolbymetadata
chunk
(ifpresent).
Note: TheE‐AC‐3decoderoperatingmodeisCustom(thatis,nometadataapplied).
.ec3 file
Process Æ Dolby Digital Plus (E AC-3) to PCM
E AC-3 Decoder Operating Mode == Line
WAV Extensible File
w/ Metadata Chunk
.ec3 file
Process Æ Dolby Digital Plus (E AC-3) to PCM
E AC-3 Decoder Operating Mode == Custom (no Metadata applied )
WAV Extensible File
w/ Metadata Chunk
WAVE
PCM
Process Æ PCM to Dolby Digital (AC-3)
NOTE: Multichannel WAVE PCM files are supported
.ac3
Process ÆSpeech-based Loudness
Estimation and dialnorm provisioning
Measurement Type Æ Speech-based
ITU-R BS.1770