ISO/IEC 23008-9:2022

Information technology — High efficiency coding and media delivery in heterogeneous environments — Part 9: 3D Audio conformance testing

This document specifies conformance criteria for both bitstreams and decoders compliant with the MPEG-H 3D audio standard as defined in ISO/IEC 23008-3. This is done to assist implementers and to ensure interoperability.

Technologies de l'information — Codage à haut rendement et fourniture de supports dans les environnements hétérogènes — Partie 9: Essais de conformité 3D Audio

General Information

• Status: Published
• Publication Date: 23-Mar-2022
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
• Drafting Committee: ISO/IEC JTC 1/SC 29/WG 6 - MPEG Audio coding
• Current Stage: 5060 - Close of voting Proof returned by Secretariat
• Completion Date: 10-Dec-2021

RELATIONS

• Replaces: ISO/IEC 23008-9:2019 - Information technology — High efficiency coding and media delivery in heterogeneous environments — Part 9: 3D Audio conformance testing
• Effective Date: 10-Jul-2021

Standards Content (sample)

INTERNATIONAL ISO/IEC
STANDARD 23008-9
Second edition
2022-03
Information technology — High
efficiency coding and media delivery
in heterogeneous environments —
Part 9:
3D Audio conformance testing
Technologies de l'information — Codage à haut rendement et
fourniture de supports dans les environnements hétérogènes —
Partie 9: Essais de conformité 3D Audio
Reference number
ISO/IEC 23008-9:2022(E)
© ISO/IEC 2022
---------------------- Page: 1 ----------------------
ISO/IEC 23008-9:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on

the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below

or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
© ISO/IEC 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC 23008-9:2022(E)
Contents Page

Foreword ......................................................................................................................................................................................................................................vii

Introduction ...........................................................................................................................................................................................................................viii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms, definitions and abbreviated terms .............................................................................................................................. 1

3.1 Terms and definitions ...................................................................................................................................................................... 1

3.2 Abbreviated terms .............................................................................................................................................................................. 2

4 MPEG-H 3D audio conformance testing ....................................................................................................................................... 3

4.1 General ........................................................................................................................................................................................................... 3

4.2 Profiles ........................................................................................................................................................................................................... 3

4.3 Test procedure ........................................................................................................................................................................................ 3

4.3.1 General ........................................................................................................................................................................................ 3

4.3.2 Naming convention .......................................................................................................................................................... 4

4.3.3 Conformance test tools ................................................................................................................................................. 6

5 MPEG-H 3D audio bitstreams ................................................................................................................................................................. 6

5.1 Characteristics, test procedure ............................................................................................................................................... 6

5.2 MPEG-H 3D audio general configuration ........................................................................................................................ 7

5.2.1 mpegh3daConfig() ............................................................................................................................................................ 7

5.2.2 FrameworkConfig3d() .................................................................................................................................................. 7

5.2.3 Signals3d() ................................... ............................................................................................................................................ 7

5.2.4 SpeakerConfig3d() ........................................................................................................................................................... 7

5.2.5 mpegh3daFlexibleSpeakerConfig()................................................................................................................... 7

5.2.6 mpegh3daSpeakerDescription() ................................... ....................................................................................... 8

5.3 MPEG-H 3D core audio configuration ................................................................................................................................ 8

5.3.1 mpegh3daDecoderConfig() ...................................................................................................................................... 8

5.3.2 mpegh3daSingleChannelElementConfig() .................................................................................................. 8

5.3.3 mpegh3daChannelPairElementConfig() ....................................................................................................... 8

5.3.4 mpegh3daCoreConfig() ................................................................................................................................................ 9

5.3.5 mpegh3daLfeElementConfig() .............................................................................................................................. 9

5.3.6 mpegh3daExtElementConfig() .............................................................................................................................. 9

5.3.7 mpegh3daConfigExtension() ............................................................................................................................... 10

5.3.8 SbrConfig() ........................................................................................................................................................................... 10

5.3.9 Mps212Config() ........................................................................................................................................... ..................... 10

5.4 MPEG-H 3D core audio frame ................................................................................................................................................. 10

5.4.1 mpegh3daFrame() ......................................................................................................................................................... 10

5.4.2 mpegh3daSingleChannelElement() ............................................................................................................... 10

5.4.3 mpegh3daChannelPairElement() ..................................................................................................................... 11

5.4.4 mpegh3daLfeElement() ............................................................................................................................................ 11

5.4.5 mpegh3daExtElement() ........................................................................................................................................... 11

5.4.6 ics_info() ................................................................................................................................................................................. 11

5.4.7 mpegh3daCoreCoderData() ..................................................................................................................................12

5.4.8 StereoCoreToolInfo() ...................................................................................................................................................12

5.4.9 fd_channel_stream() ....................................................................................................................................................12

5.4.10 lpd_channel_stream()................................................................................................................................................. 13

5.4.11 acelp_coding() ................................................................................................................................................................... 14

5.4.12 tcx_coding () ....................................................................................................................................................................... 14

5.4.13 lpd_stereo_stream() .................................................................................................................................................... 14

5.4.14 igf_stereo_pred_data()............................................................................................................................................... 15

5.4.15 igf_data() ................................................................................................................................................................................ 15

5.4.16 tbe_data() .............................................................................................................................................................................. 15

5.4.17 tw_data() ................................................................................................................................................................................ 16

5.4.18 scale_factor_data() ........................................................................................................................................................ 16

iii
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ISO/IEC 23008-9:2022(E)

5.4.19 tns_data() .............................................................................................................................................................................. 16

5.4.20 ac_spectral_data() ......................................................................................................................................................... 16

5.4.21 arith_data() .......................................................................................................................................................................... 16

5.4.22 fac_data() ............................................................................................................................................................................... 16

5.4.23 code_book_indices() .................................................................................................................................................... 16

5.4.24 UsacSbrData() .................................................................................................................................................................... 16

5.4.25 Mps212Data() .................................................................................................................................................................... 16

5.5 Fill element ........................................................................................................................................... ................................................... 16

5.6 MPEG surround configuration, SpatialSpecificConfig()................................................................................. 16

5.7 MPEG surround frame, SpatialFrame() ........................................................................................................................ 17

5.8 SAOC configuration, SAOCSpecificConfig() ............................................................................................................... 17

5.9 SAOC frame, SAOCFrame() ....................................................................................................................................................... 17

5.10 AudioPreRoll .......................................................................................................................................................................................... 17

5.10.1 Recursive presence of AudioPreRoll extension payload .............................................................. 17

5.10.2 AudioPreRoll() .................................................................................................................................................................. 17

5.11 Dynamic range control configuration ............................................................................................................................ 17

5.11.1 mpegh3daUniDrcConfig() ....................................................................................................................................... 17

5.11.2 mpegh3daUniDrcChannelLayout()................................................................................................................. 17

5.11.3 drcCoefficientsUniDrc() ........................................................................................................................................... 18

5.11.4 drcInstructionsUniDrc() .......................................................................................................................................... 18

5.11.5 uniDrcConfigExtension() ........................................................................................................................................ 18

5.12 Dynamic range control frame, uniDrcGain() ........................................................................................................... 18

5.13 Object metadata configuration, ObjectMetadataConfig() ............................................................................ 18

5.14 Object metadata frame ................................................................................................................................................................. 18

5.14.1 object_metadata_efficient() .................................................................................................................................. 18

5.14.2 object_metadata() .......................................................................................................................................................... 18

5.14.3 object_metadata_efficient() .................................................................................................................................. 18

5.14.4 intracoded_object_metadata_efficient() ................................................................................................... 18

5.14.5 differential_object_metadata() .......................................................................................................................... 19

5.14.6 offset_data() ........................................................................................................................................................................ 21

5.14.7 object_metadata_low_delay() .............................................................................................................................. 21

5.14.8 intracoded_object_metadata_low_delay() ............................................................................................... 21

5.14.9 dynamic_object_metadata() ................................................................................................................................. 22

5.14.10 single_dynamic_object_metadata() ............................................................................................................... 22

5.15 EnhancedObjectMetadataConfig() .................................................................................................................................... 23

5.16 EnhancedObjectMetadataFrame() .................................................................................................................................... 23

5.17 SAOC 3D Config ................................................................................................................................................................................... 24

5.17.1 SAOC3DSpecificConfig() ........................................................................................................................................... 24

5.17.2 SAOC3DgetNumChannels() ................................................................................................................................... 25

5.17.3 SAOC3DExtensionConfig() ..................................................................................................................................... 25

5.17.4 SAOC3DExtensionConfigData() ......................................................................................................................... 25

5.17.5 SAOCExtensionConfig() ............................................................................................................................................25

5.18 SAOC 3D frame ..................................................................................................................................................................................... 25

5.18.1 Saoc3DFrame() ................................................................................................................................................................. 25

5.18.2 SAOC3DFramingInfo() ............................................................................................................................................... 26

5.18.3 EcDataSaoc() ................................... ........................................................................................................ ............................26

5.18.4 ByteAlign() ...........................................................................................................................................................................26

5.18.5 SAOC3DExtensionFrame() ..................................................................................................................................... 26

5.18.6 SAOC3DExtensionFrameData() ......................................................................................................................... 26

5.18.7 SAOCExtensionFrame() ............................................................................................................................................ 26

5.18.8 HOAConfig() ........................................................................................................................................................................26

5.18.9 HOADecoderConfig() ................................................................................................................................................... 26

5.18.10 HOAEnhConfig() .............................................................................................................................................................. 27

5.18.11 HOADecoderEnhConfig () ....................................................................................................................................... 27

5.18.12 getSubbandWidths () .................................................................................................................................................. 27

5.19 HOA frame................................................................................................................................................................................................ 27

5.19.1 HOAFrame() ........................................................................................................................................................................ 27

5.19.2 HOAEnhFrame () ............................................................................................................................................................. 27

© ISO/IEC 2022 – All rights reserved
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ISO/IEC 23008-9:2022(E)

5.19.3 ChannelSideInfoData() ..............................................................................................................................................28

5.19.4 AddAmbHoaInfoChannel() ....................................................................................................................................28

5.19.5 HOAGainCorrectionData() ......................................................................................................................................28

5.19.6 VVectorData() ....................................................................................................................................................................28

5.19.7 HOAPredictionInfo() ...................................................................................................................................................29

5.19.8 HOADirectionalPredictionInfo() ......................................................................................................................29

5.19.9 readDirPredDiffValues() .........................................................................................................................................29

5.19.10 HOAParInfo () ....................................................................................................................................................................29

5.19.11 readParDiffValues () ....................................................................................................................................................30

5.20 FMT converter frame, FormatConverterFrame() ................................................................................................30

5.21 Multi-channel coding tool config, MCTConfig () ...................................................................................................30

5.22 Multi-channel coding tool frame ......................................................................................................................................... 30

5.22.1 MultichannelCodingBoxRotation () ...............................................................................................................30

5.22.2 MultichannelCodingBoxPrediction () .......................................................................................................... 31

5.22.3 MultichannelCodingFrame() ................................................................................................................................ 31

5.23 Tonal component coding configuration, TccConfig () ....................................................................................... 31

5.24 Tonal component coding frame ............................................................................................................................................ 31

5.24.1 General ..................................................................................................................................................................................... 31

5.24.2 TccGroupOfSegments() ............................................................................................................................................. 31

5.25 HREP config, HREPConfig() ..................................................................................................................................................... 32

5.26 HREP frame, HREPFrame() ..................................................................................................................................................... 32

5.27 ICG config, ICGConfig () ...............................................................................................................................................................33

5.28 SignalGroupInformation Config, SignalGroupInformation () .................................................................... 33

5.29 DownmixMatrix ................................................................................................................................................................................. 33

5.29.1 downmixConfig() ........................................................................................................................................................... 33

5.29.2 DownmixMatrixSet() .................................................................................................................................................. 33

5.29.3 DownmixMatrix() .......................................................................................................................................................... 33

5.29.4 DecoderGainValue() .....................................................................................................................................................34

5.29.5 ReadRange() .......................................................................................................................................................................34

5.29.6 EqualizerConfig() ...........................................................................................................................................................34

5.30 Loudness info ........................................................................................................................................................................................ 35

5.30.1 mpegh3daLoudnessInfoSet() .............................................................................................................................. 35

5.30.2 loudnessInfo() ................................................................................................................................................................... 35

5.30.3 loudnessInfoSetExtension() .................................................................................................................................. 35

5.31 Audioscene info ................................................................................................................................................................................... 35

5.31.1 mae_AudioSceneInfo ........................................................................................................................................... .........35

5.31.2 mae_Data() ........................................................................................................................................................................... 35

5.31.3 mae_GroupDefinition() ................................... ........................................................................................................... 36

5.31.4 mae_SwitchGroupDefinition() ............................................................................................................................36

5.31.5 mae_Description() ......................................................................................................................................................... 37

5.31.6 mae_ContentData() ....................................................................................................................................................... 37

5.31.7 mae_CompositePair() ................................................................................................................................................. 37

5.31.8 mae_GroupPresetDefinition() ............................................................................................................................. 37

5.31.9 mae_ProductionScreenSizeData() ..................................................................................................................38

5.31.10 mae_LoudnessCompensationData () ............................................................................................................38

5.31.11 mae_ProductionScreenSizeDataExtension() .........................................................................................39

5.31.12 mae_GroupPresetDefinitionExtension() ...................................................................................................39

5.31.13 mae_DrcUserInterfaceInfo() .................................................................................................................................40

5.32 HOA matrix .............................................................................................................................................................................................40

5.32.1 HoaRenderingMatrixSet() ......................................................................................................................................40

5.32.2 HoaRenderingMatrix() ............................
...

FINAL
INTERNATIONAL ISO/IEC
DRAFT
STANDARD FDIS
23008-9
ISO/IEC JTC 1/SC 29
Information technology — High
Secretariat: JISC
efficiency coding and media delivery
Voting begins on:
2021-10-14 in heterogeneous environments —
Voting terminates on:
Part 9:
2021-12-09
3D Audio conformance testing
Technologies de l'information — Codage à haut rendement et
fourniture de supports dans les environnements hétérogènes —
Partie 9: Essais de conformité 3D Audio
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/IEC FDIS 23008-9:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. ISO/IEC 2021
---------------------- Page: 1 ----------------------
ISO/IEC FDIS 23008-9:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO/IEC 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/IEC FDIS 23008-9:2021(E)
Contents Page

Foreword ......................................................................................................................................................................................................................................vii

Introduction ............................................................................................................................................................................................................................viii

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms, definitions and abbreviated terms ................................................................................................................................ 1

3.1 Terms and definitions ....................................................................................................................................................................... 1

3.2 Abbreviated terms ............................................................................................................................................................................... 2

4 MPEG-H 3D audio conformance testing ........................................................................................................................................ 3

4.1 General ........................................................................................................................................................................................................... 3

4.2 Profiles ........................................................................................................................................................................................................... 3

4.3 Test procedure ......................................................................................................................................................................................... 3

4.3.1 General...................................................................................................................................................................................... 3

4.3.2 Naming convention ........................................................................................................................................................ 4

4.3.3 Conformance test tools ............................................................................................................................................... 6

5 MPEG-H 3D audio bitstreams .................................................................................................................................................................. 6

5.1 Characteristics, test procedure ................................................................................................................................................. 6

5.2 MPEG-H 3D audio general configuration ......................................................................................................................... 7

5.2.1 mpegh3daConfig().......................................................................................................................................................... 7

5.2.2 FrameworkConfig3d() ................................................................................................................................................ 7

5.2.3 Signals3d() ............................................................................................................................................................................ 7

5.2.4 SpeakerConfig3d() ......................................................................................................................................................... 7

5.2.5 mpegh3daFlexibleSpeakerConfig() ................................................................................................................. 8

5.2.6 mpegh3daSpeakerDescription() ........................................................................................................................ 8

5.3 MPEG-H 3D core audio configuration ................................................................................................................................. 8

5.3.1 mpegh3daDecoderConfig() .................................................................................................................................... 8

5.3.2 mpegh3daSingleChannelElementConfig() ................................................................................................ 8

5.3.3 mpegh3daChannelPairElementConfig() ..................................................................................................... 8

5.3.4 mpegh3daCoreConfig() .............................................................................................................................................. 9

5.3.5 mpegh3daLfeElementConfig()............................................................................................................................. 9

5.3.6 mpegh3daExtElementConfig() ............................................................................................................................ 9

5.3.7 mpegh3daConfigExtension() .............................................................................................................................10

5.3.8 SbrConfig() .........................................................................................................................................................................10

5.3.9 Mps212Config() .............................................................................................................................................................10

5.4 MPEG-H 3D core audio frame .................................................................................................................................................10

5.4.1 mpegh3daFrame().......................................................................................................................................................10

5.4.2 mpegh3daSingleChannelElement() .............................................................................................................11

5.4.3 mpegh3daChannelPairElement() .................. .................................................................................................11

5.4.4 mpegh3daLfeElement() ..........................................................................................................................................11

5.4.5 mpegh3daExtElement() .........................................................................................................................................11

5.4.6 ics_info() ...............................................................................................................................................................................12

5.4.7 mpegh3daCoreCoderData() ................................................................................................................................12

5.4.8 StereoCoreToolInfo() ................................................................................................................................................12

5.4.9 fd_channel_stream() ..................................................................................................................................................13

5.4.10 lpd_channel_stream() ...............................................................................................................................................13

5.4.11 acelp_coding() .................................................................................................................................................................14

5.4.12 tcx_coding () ......................................................................................................................................................................14

5.4.13 lpd_stereo_stream() ...................................................................................................................................................15

5.4.14 igf_stereo_pred_data() ..............................................................................................................................................15

5.4.15 igf_data() ..............................................................................................................................................................................15

5.4.16 tbe_data() ............................................................................................................................................................................15

5.4.17 tw_data() ..............................................................................................................................................................................16

5.4.18 scale_factor_data() ...................................................................... .................................................................................16

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ISO/IEC FDIS 23008-9:2021(E)

5.4.19 tns_data() ............................................................................................................................................................................16

5.4.20 ac_spectral_data() ........................................................................................................................................................16

5.4.21 arith_data() ........................................................................................................................................................................16

5.4.22 fac_data() .............................................................................................................................................................................16

5.4.23 code_book_indices() ..................................................................................................................................................16

5.4.24 UsacSbrData() .................................................................................................................................................................16

5.4.25 Mps212Data() .................................................................................................................................................................16

5.5 Fill element ..............................................................................................................................................................................................17

5.6 MPEG surround configuration, SpatialSpecificConfig() ...................................................................................17

5.7 MPEG surround frame, SpatialFrame() ..........................................................................................................................17

5.8 SAOC configuration, SAOCSpecificConfig() ..................................................................................................................17

5.9 SAOC frame, SAOCFrame() .........................................................................................................................................................17

5.10 AudioPreRoll ..........................................................................................................................................................................................17

5.10.1 Recursive presence of AudioPreRoll extension payload .............................................................17

5.10.2 AudioPreRoll() ................................................................................................................................................................17

5.11 Dynamic range control configuration ..............................................................................................................................17

5.11.1 mpegh3daUniDrcConfig() .....................................................................................................................................17

5.11.2 mpegh3daUniDrcChannelLayout() ...............................................................................................................18

5.11.3 drcCoefficientsUniDrc() ..........................................................................................................................................18

5.11.4 drcInstructionsUniDrc() .........................................................................................................................................18

5.11.5 uniDrcConfigExtension() .......................................................................................................................................18

5.12 Dynamic range control frame, uniDrcGain() ..............................................................................................................18

5.13 Object metadata configuration, ObjectMetadataConfig() ...............................................................................18

5.14 Object metadata frame ..................................................................................................................................................................18

5.14.1 object_metadata_efficient() .................................................................................................................................18

5.14.2 object_metadata() ........................................................................................................................................................18

5.14.3 object_metadata_efficient() .................................................................................................................................19

5.14.4 intracoded_object_metadata_efficient() ...................................................................................................19

5.14.5 differential_object_metadata()..........................................................................................................................20

5.14.6 offset_data() ......................................................................................................................................................................21

5.14.7 object_metadata_low_delay().............................................................................................................................21

5.14.8 intracoded_object_metadata_low_delay() ...............................................................................................21

5.14.9 dynamic_object_metadata() ................................................................................................................................22

5.14.10 single_dynamic_object_metadata() ...............................................................................................................22

5.15 EnhancedObjectMetadataConfig() ......................................................................................................................................23

5.16 EnhancedObjectMetadataFrame() ......................................................................................................................................24

5.17 SAOC 3D Config ....................................................................................................................................................................................25

5.17.1 SAOC3DSpecificConfig() .........................................................................................................................................25

5.17.2 SAOC3DgetNumChannels() .................................................................................................................................25

5.17.3 SAOC3DExtensionConfig() ...................................................................................................................................25

5.17.4 SAOC3DExtensionConfigData() .......................................................................................................................25

5.17.5 SAOCExtensionConfig() ..........................................................................................................................................25

5.18 SAOC 3D frame .....................................................................................................................................................................................26

5.18.1 Saoc3DFrame()...............................................................................................................................................................26

5.18.2 SAOC3DFramingInfo() .............................................................................................................................................26

5.18.3 EcDataSaoc() ....................................................................................................................................................................26

5.18.4 ByteAlign() .........................................................................................................................................................................26

5.18.5 SAOC3DExtensionFrame() ...................................................................................................................................26

5.18.6 SAOC3DExtensionFrameData() .......................................................................................................................26

5.18.7 SAOCExtensionFrame() ..........................................................................................................................................26

5.18.8 HOAConfig() ......................................................................................................................................................................26

5.18.9 HOADecoderConfig().................................................................................................................................................27

5.18.10 HOAEnhConfig() ............................................................................................................................................................27

5.18.11 HOADecoderEnhConfig () .....................................................................................................................................27

5.18.12 getSubbandWidths () ................................................................................................................................................28

5.19 HOA frame ................................................................................................................................................................................................28

5.19.1 HOAFrame() ......................................................................................................................................................................28

5.19.2 HOAEnhFrame ()...........................................................................................................................................................28

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5.19.3 ChannelSideInfoData() ............................................................................................................................................28

5.19.4 AddAmbHoaInfoChannel() ..................................................................................................................................28

5.19.5 HOAGainCorrectionData() ....................................................................................................................................28

5.19.6 VVectorData() ..................................................................................................................................................................29

5.19.7 HOAPredictionInfo()..................................................................................................................................................29

5.19.8 HOADirectionalPredictionInfo() .....................................................................................................................29

5.19.9 readDirPredDiffValues() ........................................................................................................................................30

5.19.10 HOAParInfo () ..................................................................................................................................................................30

5.19.11 readParDiffValues () ..................................................................................................................................................30

5.20 FMT converter frame, FormatConverterFrame() ...................................................................................................30

5.21 Multi-channel coding tool config, MCTConfig () ......................................................................................................30

5.22 Multi-channel coding tool frame ..........................................................................................................................................31

5.22.1 MultichannelCodingBoxRotation () ..............................................................................................................31

5.22.2 MultichannelCodingBoxPrediction () .........................................................................................................31

5.22.3 MultichannelCodingFrame() ..............................................................................................................................32

5.23 Tonal component coding configuration, TccConfig () .........................................................................................32

5.24 Tonal component coding frame .............................................................................................................................................32

5.24.1 General...................................................................................................................................................................................32

5.24.2 TccGroupOfSegments() ...........................................................................................................................................32

5.25 HREP config, HREPConfig() ......................................................................................................................................................33

5.26 HREP frame, HREPFrame() .......................................................................................................................................................33

5.27 ICG config, ICGConfig () ................................................................................................................................................................33

5.28 SignalGroupInformation Config, SignalGroupInformation () ......................................................................33

5.29 DownmixMatrix ..................................................................................................................................................................................34

5.29.1 downmixConfig()..........................................................................................................................................................34

5.29.2 DownmixMatrixSet() ................................................................................................................................................34

5.29.3 DownmixMatrix() ........................................................................................................................................................34

5.29.4 DecoderGainValue() ...................................................................................................................................................35

5.29.5 ReadRange() .....................................................................................................................................................................35

5.29.6 EqualizerConfig() .........................................................................................................................................................35

5.30 Loudness info ........................................................................................................................................................................................35

5.30.1 mpegh3daLoudnessInfoSet() ............................................................................................................................35

5.30.2 loudnessInfo() .................................................................................................................................................................36

5.30.3 loudnessInfoSetExtension() ................................................................................................................................36

5.31 Audioscene info ...................................................................................................................................................................................36

5.31.1 mae_AudioSceneInfo .................................................................................................................................................36

5.31.2 mae_Data() .........................................................................................................................................................................36

5.31.3 mae_GroupDefinition() ...........................................................................................................................................36

5.31.4 mae_SwitchGroupDefinition() ..........................................................................................................................37

5.31.5 mae_Description() .......................................................................................................................................................38

5.31.6 mae_ContentData() .....................................................................................................................................................38

5.31.7 mae_CompositePair() ...............................................................................................................................................38

5.31.8 mae_GroupPresetDefinition() ...........................................................................................................................38

5.31.9 mae_ProductionScreenSizeData() .................................................................................................................39

5.31.10 mae_LoudnessCompensationData () ...........................................................................................................39

5.31.11 mae_ProductionScreenSizeDataExtension() ........................................................................................40

5.31.12 mae_GroupPresetDefinitionExtension() ..................................................................................................40

5.31.13 mae_DrcUserInterfaceInfo() ...............................................................................................................................41

5.32 HOA matrix ...........................................................................

...