IEC 61937-13:2018

Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 13: MPEG-H 3D Audio

IEC 61937-13:2018(E) specifies the method to convey non-linear PCM bitstreams encoded according to the MPEG‑H 3D Audio format.

General Information

• Status: Published
• Publication Date: 09-Apr-2018
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 35.040.40 - Coding of audio, video, multimedia and hypermedia information
• Technical Committee: TA 20 - Analogue and digital audio
• Drafting Committee: PT 61937-13 - TC 100/TA 4/PT 61937-13
• Current Stage: PPUB - Publication issued
• Start Date: 26-Apr-2018
• Completion Date: 10-Apr-2018

Standards Content (Sample)

IEC 61937-13 ®
Edition 1.0 2018-04
INTERNATIONAL
STANDARD
Digital audio – Interface for non-linear pcm encoded audio bitstreams applying
IEC 60958 –
Part 13: MPEG-H 3D Audio
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IEC 61937-13 ®
Edition 1.0 2018-04
INTERNATIONAL
STANDARD
Digital audio – Interface for non-linear pcm encoded audio bitstreams applying

IEC 60958 –
Part 13: MPEG-H 3D Audio
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 35.040.40 ISBN 978-2-8322-5534-6

– 2 – IEC 61937-13:2018 © IEC 2018
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 8
4 Mapping of the audio bit stream on to IEC 61937-1 . 8
4.1 General . 8
4.2 Burst-info for MPEG-H 3D Audio . 8
5 Format of data-burst for MPEG-H 3D Audio . 9
5.1 General . 9
5.2 Pause data-bursts for MPEG-H 3D Audio . 9
5.3 Audio data-bursts . 9
5.3.1 MPEG-H 3D Audio . 9
5.3.2 MPEG-H 3D Audio HBR . 11
5.3.3 Burst payload use cases . 14
5.3.4 Latency. 16

Figure 1 – MPEG-H 3D Audio data-burst structure . 9
Figure 2 – MPEG-H 3D Audio HBR data-burst structure . 11
Figure 3 – MPEG-H 3D Audio burst payload . 14
Figure 4 – MPEG-H 3D Audio burst payload for overlapping data frame . 15
Figure 5 – MPEG-H 3D Audio burst payload for truncated data frame . 16

Table 1 – Values of data-type for MPEG-H 3D Audio . 8
Table 2 – Repetition period of pause data-bursts for MPEG-H 3D Audio . 9
Table 3 – MPEG-H 3D Audio burst payload header structure entry . 10
Table 4 – Data-type-dependent information for data-type MPEG-H 3D Audio . 10
Table 5 – Repetition period and maximum data-burst payload size for
data type MPEG-H 3D Audio . 11
Table 6 – MPEG-H 3D Audio HBR burst payload header structure entry . 12
Table 7 – Data-type-dependent information for data-type MPEG-H 3D Audio HBR . 12
Table 8 – Repetition period and maximum data-burst payload size for value 0 of
Pc bits 11 and 12 (2 × audio sample rate) . 13
Table 9 – Repetition period and maximum data-burst payload size for value 1 of
Pc bits 11 and 12 (4 × audio sample rate) . 13
Table 10 – Repetition period and maximum data-burst payload size for value 2 of
Pc bits 11 and 12 (8 × audio sample rate) . 13
Table 11 – Repetition period and maximum data-burst payload size for value 3 of
Pc bits 11 and 12 (16 × audio sample rate) . 14
Table 12 – MPEG-H 3D Audio burst payload header structure entries . 15
Table 13 – MPEG-H 3D Audio burst payload header structure entries
for overlapping data frame . 15
Table 14 – MPEG-H 3D Audio burst payload header structure entries
for truncated data frame . 16

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
DIGITAL AUDIO –
INTERFACE FOR NON-LINEAR PCM ENCODED
AUDIO BITSTREAMS APPLYING IEC 60958 –

Part 13: MPEG-H 3D Audio
FOREWORD
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International Standard IEC 61937-13 has been prepared by technical area 4: Digital system
interfaces and protocols, of IEC technical committee 100: Audio, video and multimedia
systems and equipment.
The text of this International Standard is based on the following documents:
CDV Report on voting
100/2943/CDV 100/3068/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 61937-13:2018 © IEC 2018
A list of all parts in the IEC 61937 series, published under the general title Digital audio –
Interface for non-linear PCM encoded audio bitstreams applying IEC 60958, can be found on
the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
Modern digital video standards, such as ATSC and DVB, are preparing for next-generation
TV broadcast systems. The latest evolutions in audio introduce fundamental changes to the
way audio is produced, and may well revolutionize the user experience. The new MPEG-H
audio standard offers not only immersive 3D Audio, but it also introduces the concept of audio
objects that can be used to personalize the user experience.
The MPEG-H 3D Audio standard is the next generation MPEG audio codec, and it requires a
framing format that supports more flexible signalling and delivery mechanisms than were
needed for earlier systems. Therefore, the MPEG-H 3D Audio Transport Stream (MHAS)
framing format was specified for use with the MPEG-H 3D Audio codec.
In order to be able to pass the MPEG-H 3D Audio bit stream from a set-top box to an
A/V receiver connected via the IEC 60958 interface, this part of IEC 61937 employs the
MHAS framing format.
– 6 – IEC 61937-13:2018 © IEC 2018
DIGITAL AUDIO –
INTERFACE FOR NON-LINEAR PCM ENCODED
AUDIO BITSTREAMS APPLYING IEC 60958 –

Part 13: MPEG-H 3D Audio
1 Scope
This part of IEC 61937 specifies the method to convey non-linear PCM bitstreams encoded
according to the MPEG-H 3D Audio format.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. F
...