Dolby Laboratories DP600 Profile: TS_TS-3 MPEG-2 Transport Stream MPEG-1 Layer II Loudness Normalization

Profile Descriptions
Dolby® DP600 Program Optimizer Manual 83
Profile: TS_TS-2 Æ MPEG-2 Transport Stream MPEG-1 LII Loudness
Normalization and Dolby Digital (AC-3) dialnorm Correction
ProfileTS_TS‐2normalizestheloudnessofallMPEG‐1LIIelementarystreamscontained
withintheMPEG‐2transportstreamfile.Thisprocessscalestheloudness,resultingina
dialogueloudness(intheoutputfile)of–24LKFS.Thisprofilealsocorrectstheloudness
ofallAC‐3elementarystreamscontainedwithinthefile.Thisprocesscorrectsthemetadata
values(dialnorm,dynrng,andcompr)withintheoriginalAC‐3elementarystreamsifthe
measureddialogueloudnessisgreaterthantheoriginaldialoguenormalizationvalue
within±1dB.Ifthemeasureddialogueloudnessisbelow–32LKFS,theaudioisscaled,
resultinginantheaveragedialogueloudnessof–31LKFSwithdialoguenormalizationset
to–31.Allremainingmetadataispreserved.
Profile: TS_TS-3 Æ MPEG-2 Transport Stream MPEG-1 Layer II Loudness
Normalization
ProfileTS_TS‐3normalizestheloudnessofallMPEG‐1LIIelementarystreamscontained
withintheMPEG‐2transportstreamfile.Thisprocessscalestheloudness,resultingina
dialogueloudnessof–24LKFSintheoutputfile.
Profile: TS_TS-4 Æ MPEG-2 Transport Stream with MPEG-1 LII Loudness
Normalization and Transcoding to AC-3 with the Correct dialnorm Value
ProfileTS_TS‐4normalizestheloudnessofasingleMPEG‐1LIIelementarystream
containedwithintheMPEG‐2transportstreamfile.Thisprocessscalestheloudness,
resultinginadialogueloudnessof–24LKFSintheoutputfile.TheMPEG‐1LIIaudiois
alsotranscodedtoDolbyDigital(AC‐3)andremuxedwitha stream_typevalueof0x81
andaPIDvalueof0x1e2.
MPEG-2 Transport
Stream with Dolby
Digital (AC-3) &
MPEG-1 Layer II
MPEG-2 Transport
Stream with Dolby
Digital (AC-3) &
MPEG-1 Layer II
Process ÆSpeech-based Loudness Normali z ation to -24 LKFS
for MPEG-1 Layer I I A N D
Dialnorm Correcti on f or Dolby Digital (AC-3)
Measurement Type Æ Speech-bas ed I TU-R BS.1770
MPEG-2 T rans port
Stream with MPEG-1
Layer II
Process ÆSpeech-based Loudness
Normalization to -24 LKFS
Measurement Type Æ Speec h -based
ITU-R BS.1770
MPEG-2 Transport
Stream with MPEG-1
Layer II
MPEG-2 Trans port
Stream with a s ingle
MPEG-1 Lay er II ES
Process ÆSpeech-based Loudness
Normalizatio n t o -24 LKFS (f or LI I) &
Transcode to Dolby Digital (AC-3) with
Correct D i al no rm v alue
Measurement Type Æ Speech-bas ed
ITU-R BS.1770
MPEG-2 Transp ort
Stream wit h M P E G-1
Layer II & AC -3
AC-3 stream _t ype = 0x81
AC-3 PID = 0x1e2