ETSI TS 103 584 V1.1.1 (2018-01)

DTS-UHD Point Source Renderer

DTS/JTC-DTS-PSR

General Information

• Status: Published
• Publication Date: 24-Jan-2018
• Technical Committee: BROADCAS - EBU/CENELEC/ETSI on Broadcasting
• Current Stage: 12 - Completion
• Due Date: 24-Jan-2018
• Completion Date: 25-Jan-2018

Standards Content (Sample)

ETSI TS 103 584 V1.1.1 (2018-01)






TECHNICAL SPECIFICATION
DTS-UHD Point Source Renderer

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2 ETSI TS 103 584 V1.1.1 (2018-01)



Reference
DTS/JTC-DTS-PSR
Keywords
audio, broadcast, codec, digital, object audio

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3 ETSI TS 103 584 V1.1.1 (2018-01)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 9
1 Scope . 10
2 References . 10
2.1 Normative References . 10
2.2 Informative References . 10
3 Definitions and abbreviations . 10
3.1 Definitions . 10
3.2 Abbreviations . 11
4 Renderer Metadata . 12
4.1 Overview of the Renderer Inputs . 12
4.2 DTS-UHD Bitstream Metadata . 12
4.3 DTS-UHD Object Interactivity Manager . 13
5 Variables and Class Types . 15
5.1 Global Variables . 15
5.2 Renderer Object Classes . 16
5.2.1 Point . 16
5.2.2 Edge . 17
5.2.3 SpeakerConfiguration . 17
5.2.4 EMASmoother . 17
5.2.5 MonoObject . 18
5.2.6 AudioObject . 19
5.2.7 Vector . 19
5.2.8 Matrix . 19
5.2.9 Triplet . 19
5.2.10 Hull . 21
5.2.11 Virtual Speakers . 21
5.2.12 VectorBasedPanner . 21
5.2.13 PointSourceObjectRenderer . 22
5.3 Other Helper Functions . 22
5.3.1 Join. 22
5.3.2 MapAzimuthTo0_360 . 23
5.3.3 GetEquatorialPoints . 23
5.3.4 NumUpperHemispherePoints . 23
5.3.5 NumLowerHemispherePoints . 23
6 Point Source Object Renderer . 24
6.1 Operation of the Renderer . 24
6.2 Renderer Initialization . 25
6.3 Virtual Speakers . 25
6.3.1 Virtual Speakers Positioning. 25
6.3.2 Predefined Virtual Speakers . 25
6.3.2.1 Predefined Virtual Speakers Layouts . 25
6.3.2.2 PredefinedVirtualSpeakers::IsSupported . 27
6.3.2.3 PredefinedVirtualSpeakers::GetVirtualSpeakersAndFolddownCoeffs . 27
6.3.3 Auto Virtual Speakers . 28
6.3.3.1 Overview of Automatic Virtual Speaker Mapping . 28
6.3.3.2 Add Virtual Speakers in the Equatorial Plane . 28
6.3.3.3 Add Virtual Speakers in the Upper Hemisphere . 29
6.3.3.4 Add Virtual Speakers in the Lower Hemisphere . 30
6.3.3.5 Calculate Fold-down Coefficients for Equatorial Virtual Speakers . 31
6.3.3.6 Calculate Fold-down Coefficients for the Upper and Lower Hemisphere . 32
6.3.4 GetVirtualSpeakersAndFolddownCoeffs . 33
ETSI

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4 ETSI TS 103 584 V1.1.1 (2018-01)
6.3.5 Hull Initialization . 33
6.4 Predefined Virtual Speakers Organization . 34
6.5 Rendering All Objects . 35
6.5.1 Object Rendering . 35
6.5.2 Vector Based Panner . 36
6.5.3 Panning in a Hull . 36
7 Predefined Virtual Speaker Mapping . 38
7.1 Channel Bitmask . 38
7.2 General Mapping Functions . 39
7.2.1 GetLinearGainVectorFromTable . 39
7.2.2 Physical Speaker Search Functions . 40
7.2.2.1 Search Functions Overview . 40
7.2.2.2 ClosestAzEq . 40
7.2.2.3 ClosestAzUH . 40
7.2.2.4 ClosestElv . 40
7.2.2.5 LeftLargestEqtr . 40
7.2.2.6 RightLargestEqtr . 40
7.2.2.7 PrefOrder . 41
7.2.2.8 Split . 41
7.2.2.9 ExclusiveOr . 41
7.3 Equatorial Plane and Upper Hemisphere . 41
7.3.1 Equatorial Plane and Height Functions . 41
7.3.1.1 GetChannelMaskForEqtrUpHemiGroups . 41
7.3.1.2 GroupEquatorOrUpper . 41
7.3.1.3 list_of_all_groups_equator_or_upper . 42
7.3.2 GroupEquatorOrUpper1 . 42
7.3.2.1 Channel Layouts in GroupEquatorOrUpper1 . 42
7.3.2.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper1 . 43
7.3.3 GroupEquatorOrUpper2 . 43
7.3.3.1 Channel Layouts in GroupEquatorOrUpper2 . 43
7.3.3.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper2 . 44
7.3.4 GroupEquatorOrUpper3 . 44
7.3.4.1 Channel Layouts in GroupEquatorOrUpper3 . 44
7.3.4.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper3 . 44
7.3.5 GroupEquatorOrUpper4 . 45
7.3.5.1 Channel Layouts in GroupEquatorOrUpper4 . 45
7.3.5.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper4 . 45
7.3.6 GroupEquatorOrUpper5 . 46
7.3.6.1 Channel Layouts in GroupEquatorOrUpper5 . 46
7.3.6.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper5 . 46
7.3.7 GroupEquatorOrUpper6 . 46
7.3.7.1 Channel Layouts in GroupEquatorOrUpper6 . 46
7.3.7.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper6 . 47
7.3.8 GroupEquatorOrUpper7 . 47
7.3.8.1 Channel Layouts in GroupEquatorOrUpper7 . 47
7.3.8.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper7 . 48
7.3.9 GroupEquatorOrUpper8 . 48
7.3.9.1 Channel Layouts in GroupEquatorOrUpper8 . 48
7.3.9.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper8 . 49
7.3.10 GroupEquatorOrUpper9 . 49
7.3.10.1 Channel Layouts in GroupEquatorOrUpper9 . 49
7.3.10.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper9 . 50
7.3.11 GroupEquatorOrUpper10 . 50
7.3.11.1 Channel Layouts in GroupEquatorOrUpper10 . 50
7.3.11.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper10 . 56
7.3.12 GroupEquatorOrUpper11 . 56
7.3.12.1 Channel Layouts in GroupEquatorOrUpper11 . 56
7.3.12.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper11 . 57
7.3.13 GroupEquatorOrUpper12 . 57
7.3.13.1 Channel Layouts in GroupEquatorOrUpper12 . 57
7.3.13.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper12 . 57
ETSI

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5 ETSI TS 103 584 V1.1.1 (2018-01)
7.3.14 GroupEquatorOrUpper13 . 58
7.3.14.1 Channel Layouts in GroupEquatorOrUpper13 . 58
7.3.14.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper13 . 58
7.3.15 GroupEquatorOrUpper14 . 58
7.3.15.1 Channel Layouts in GroupEquatorOrUpper14 . 58
7.3.15.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper14 . 58
7.3.16 GroupEquatorOrUpper15 . 59
7.3.16.1 Channel Layouts in GroupEquatorOrUpper15 . 59
7.3.16.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper15 . 59
7.3.17 GroupEquatorOrUpper16 . 59
7.3.17.1 Channel Layouts in GroupEquatorOrUpper16 . 59
7.3.17.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper16 . 59
7.3.18 GroupEquatorOrUpper17 . 60
7.3.18.1 Channel Layouts in GroupEquatorOrUpper17 . 60
7.3.18.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper17 . 60
7.3.19 GroupEquatorOrUpper18 . 60
7.3.19.1 Channel Layouts in GroupEquatorOrUpper18 . 60
7.3.19.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper18 . 60
7.3.20 GroupEquatorOrUpper19 . 61
7.3.20.1 Channel Layouts in GroupEquatorOrUpper19 . 61
7.3.20.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper19 . 61
7.3.21 GroupEquatorOrUpper20 . 61
7.3.21.1 Channel Layouts in GroupEquatorOrUpper20 . 61
7.3.21.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper20 . 62
7.3.22 GroupEquatorOrUpper21 . 62
7.3.22.1 Channel Layouts in GroupEquatorOrUpper21 . 62
7.3.22.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper21 . 62
7.4 Lower Hemisphere . 62
7.4.1 Conditions for Lower Hemisphere Groups . 62
7.4.2 Functions for Virtual Speakers in the Lower Hemisphere . 63
7.4.2.1 GetChannelLayoutMaskForLowerHemisphere . 63
7.4.2.2 GroupLower . 63
7.4.2.3 list_of_all_groups_lower . 64
7.4.3 GroupLower1 . 64
7.4.3.1 Channel layouts in GroupLower1 . 64
7.4.3.2 Virtual Speakers and their Fold-down Coefficients for GroupLower1 . 64
7.4.4 GroupLower2 . 64
7.4.4.1 Channel layouts in GroupLower2 . 64
7.4.4.2 Virtual Speakers and their Fold-down Coefficients for GroupLower2 . 65
7.4.5 GroupLower3 . 65
7.4.5.1 Channel layouts in GroupLower3 . 65
7.4.5.2 Virtual Speakers and their Fold-down Coefficients for GroupLower3 . 65
7.4.6 GroupLower4 . 65
7.4.6.1 Channel layouts in GroupLower4 . 65
7.4.6.2 Virtual Speakers and their Fold-down Coefficients for GroupLower4 . 66
7.4.7 GroupLower5 . 66
7.4.7.1 Channel Layouts in GroupLower5 . 66
7.4.7.2 Virtual Speakers and their Fold-down Coefficients for GroupLower5 . 66
History . 67


ETSI

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6 ETSI TS 103 584 V1.1.1 (2018-01)
List of Tables
Table 1: DTS-UHD Metadata Parameters used for Rendering .13
Table 2: Object Interactive Parameters Specified in the Bitstream .14
Table 3: Channel Definitions and Bitmask .39
Table 4: GroupEquatorOrUpper1 list_of_channel_masks[] .42
Table 5: GroupEquatorOrUpper1 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .43
Table 6: GroupEquatorOrUpper1 Fold-down Coefficients for Virtual Speakers in Upper Hemisphere .43
Table 7: GroupEquatorOrUpper2 list_of_channel_masks[] .43
Table 8: GroupEquatorOrUpper2 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .44
Table 9: GroupEquatorOrUpper2 Fold-down Coefficients for Virtual Speakers in Upper Hemisphere .44
Table 10: GroupEquatorOrUpper3 list_of_channel_masks[] .44
Table 11: GroupEquatorOrUpper3 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .44
Table 12: GroupEquatorOrUpper3 Fold-down Coefficients for Virtual Speakers in Upper Hemisphere .45
Table 13: GroupEquatorOrUpper4 list_of_channel_masks[] .45
Table 14: GroupEquatorOrUpper4 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .45
Table 15: GroupEquatorOrUpper4 Fold-down Coefficients for Virtual Speakers in Upper Hemisphere .45
Table 16: GroupEquatorOrUpper5 list_of_channel_masks[] .46
Table 17: GroupEquatorOrUpper5 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .46
Table 18: GroupEquatorOrUpper5 Fold-down Coefficients for Virtual Speakers in Upper Hemisphere .46
Table 19: GroupEquatorOrUpper6 list_of_channel_masks[] .46
Table 20: GroupEquatorOrUpper6 Fold-down Coefficients for Virtual Speakers in Equatorial Plane .
...