IEC 61883-6:2005
(Main)Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
Consumer audio/video equipment - Digital interface - Part 6: Audio and music data transmission protocol
IEC 61883-6:2005 describes a protocol for the transmission of audio and music data employing IEEE 1394 and specifies essential requirements for the application of the protocol. This protocol can be applied to all modules or devices that have any kind of audio and/or music data processing, generation and conversion function blocks. This document deals only with the transmission of audio and music data This second edition of IEC 61883-6 cancels and replaces the first edition published in 2002. This edition contains the following significant technical changes with respect to the previous edition:
- It extends the AM824 data format.
- It specifies new data types for SMPTE time code, sample count, high-precision multi-bit linear audio and ancillary data.
- It changes the terminology "raw audio data" to "multi-bit linear audio (MBLA)".
- It defines sequence multiplexing and MIDI data required to the AM824 adaptation process.
- It describes application-specific data transmission such as DVD-audio and SACD.
- It specifies the N-flag that indicates command-based rate control and defines new sampling frequency code (SFC) definition and interpretation. This bilingual version (2012-08) corresponds to the monolingual English version, published in 2005-10.
Matériel audio/vidéo grand public - Interface numérique - Partie 6: Protocole de transmission de données audio et musicales
La CEI 61883-6:2005 décrit un protocole de transmission de données audio et musicales utilisant l'IEEE 1394 et spécifie les exigences essentielles pour l'application du protocole. Ce protocole peut être appliqué à tous les modules ou dispositifs d'un type quelconque de traitement, génération et blocs de fonction de conversion de données audio et/ou musicales. Ce document ne traite que la transmission de données audio et musicales. Cette deuxième édition de la CEI 61883-6 annule et remplace la première édition parue en 2002. Cette édition contient les modifications techniques significatives suivantes:
- Elle complète la transmission du format de données.
- Elle introduit les nouveaux types de données pour le code de temps SMPTE, le compte d'échantillons, les données audio et auxiliaire linéaires de haute précision multi-bits.
- Elle modifie la terminologie "données audio brutes" en "audio linéaire multi-bits (MBLA)".
- Elle définit le multiplexage de séquence et les données MIDI nécessaires au processus d'adaptation à l'AM824.
- Elle décrit la transmission de données spécifique à une application, par exemple DVD audio et SACD.
- Elle spécifie l'indicateur N indiquant le contrôle de rythme par commande et précise la définition et l'interprétation du nouveau code de fréquence d'échantillonnage (SFC). La présente version bilingue (2012-07) correspond à la version anglaise monolingue publiée en 2005-10.
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INTERNATIONAL IEC
STANDARD 61883-6
Second edition
2005-10
Consumer audio/video equipment –
Digital interface –
Part 6:
Audio and music data transmission protocol
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INTERNATIONAL IEC
STANDARD 61883-6
Second edition
2005-10
Consumer audio/video equipment –
Digital interface –
Part 6:
Audio and music data transmission protocol
IEC 2005 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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For price, see current catalogue
– 2 – 61883-6 IEC:2005(E)
CONTENTS
FOREWORD.6
1 Scope.8
2 Normative references .8
3 Terms and definitions .8
4 Reference model for data transmission.10
4.1 Application layer.11
4.2 Adaptation layer .11
4.3 Packetization layer .12
5 Transport requirements .13
5.1 Arbitrated short bus reset .13
5.2 Bit, byte, and quadlet ordering.13
6 Packet header for audio and music data .13
6.1 Isochronous packet header format.13
6.2 CIP header format .13
7 Packetization.14
7.1 Packet transmission method.14
7.2 Transmission of timing information .14
7.3 Time stamp processing.15
7.4 Transmission control .16
8 Event types .17
8.1 General .17
8.2 AM824 data.20
8.3 32-bit floating-point data.28
8.4 24-bit * 4 audio pack .28
8.5 32-bit generic data .29
9 FDF definition.29
9.1 Introduction .29
9.2 Basic format .30
9.3 Special format .31
10 FDF definition for AM824 data .32
10.1 Definition of N-flag .32
10.2 Supplementary SFC definition .32
10.3 Clock-based rate control mode (FDF = 0000 0xxx ) .33
10.4 Command-based rate control mode (FDF = 00001xxx ) .34
11 AM824 adaptation process .35
11.1 Introduction .35
11.2 Basic sequence conversion .35
11.3 Sequence multiplexing .35
11.4 Compound data block structure .36
12 AM824 sequence adaptation layers .40
12.1 General .40
12.2 DVD-Audio .56
12.3 SACD definition.59
61883-6 IEC:2005(E) – 3 –
Annex A (informative) Blocking transmission method .64
Annex B (informative) Synchronization issues.66
Annex C (informative) Catching up in non-blocking transmission method .68
Annex D (informative) Transport characteristics.69
Bibliography.77
Figure 1 – Reference model for audio and music data transmission .10
Figure 2 – Reference model for AM824 data transmission .11
Figure 3 – Implementation example of receiver .12
Figure 4 – Isochronous packet header .13
Figure 5 – Common isochronous packet (CIP) format .14
Figure 6 – Non-blocking transmission method.16
Figure 7 – Transmission parameters .17
Figure 8 – Cluster events.18
Figure 9 – Pack and cluster events .19
Figure 10 – Pack event with 24-bit event sequence.19
Figure 11 – Generic AM824 format .20
Figure 12 – AM824 data with SUB LABEL.20
Figure 13 – AM824 LABEL allocation map (informative).21
Figure 14 – IEC 60958-conformant data format.22
Figure 15 – MBLA data .22
Figure 16 – Raw audio data .23
Figure 17 – Alignment of 20-bit data in 24-bit field .23
Figure 18 – MIDI conformant data format .24
Figure 19 – No-data format .24
Figure 20 – High-precision multi-bit linear audio data.25
Figure 21 – Generic high-precision quadlet sequence .25
Figure 22 – Generic ancillary data .26
Figure 23 – Ancillary no data .26
Figure 24 – General format for ASID.27
Figure 25 – General format for application-specific ancillary data .28
Figure 26 – 32-bit floating-point data format.28
Figure 27 – 24-bit * 4 audio pack format .29
Figure 28 – 32-bit generic data format .29
Figure 29 – Generic FDF definition .30
Figure 30 – FDF code for NO-DATA packet .31
Figure 31 – Structure of FDF for AM824 data type .32
Figure 32 – SFC interpretation.32
Figure 33 – FDF for AM824 and AM824 LABEL space (informative).33
Figure 34 – Adaptation to AM824 sequence.35
Figure 35 – Asynchronous sequence multiplexing.36
Figure 36 – Example of compound data block .37
– 4 – 61883-6 IEC:2005(E)
Figure 37 – Condition of AM824 rule.37
Figure 38 – Generic compound data block structure .38
Figure 39 – Example of unspecified region structure.39
Figure 40 – Generic one-bit audio quadlet .47
Figure 41 – Generic one-bit audio quadlet sequence .48
Figure 42 – One-bit audio DST encoded quadlet.48
Figure 43 – Multiplexing of MIDI data streams .49
Figure 44 – High-precision first ancillary data .50
Figure 45 – IEC 60958-conformant data with high-precision data.51
Figure 46 – Common and application-specific ancillary data with high-precision data.52
Figure 47 – High-precision channel assignment ancillary data .52
Figure 48 – Example of high-precision data .53
Figure 49 – Example of double-precision data .
...
IEC 61883-6 ®
Edition 2.0 2005-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Consumer audio/video equipment – Digital interface –
Part 6: Audio and music data transmission protocol
Matériel audio/vidéo grand public – Interface numérique –
Partie 6: Protocole de transmission de données audio et musicales
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IEC 61883-6 ®
Edition 2.0 2005-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Consumer audio/video equipment – Digital interface –
Part 6: Audio and music data transmission protocol
Matériel audio/vidéo grand public – Interface numérique –
Partie 6: Protocole de transmission de données audio et musicales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XC
ICS 33.160.01; 35.200 ISBN 978-2-83220-243-2
– 2 – 61883-6 IEC:2005
CONTENTS
FOREWORD . 6
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Reference model for data transmission . 10
4.1 Application layer . 11
4.2 Adaptation layer . 11
4.3 Packetization layer . 12
5 Transport requirements . 13
5.1 Arbitrated short bus reset . 13
5.2 Bit, byte, and quadlet ordering . 13
6 Packet header for audio and music data . 13
6.1 Isochronous packet header format . 13
6.2 CIP header format . 13
7 Packetization . 14
7.1 Packet transmission method . 14
7.2 Transmission of timing information . 14
7.3 Time stamp processing. 15
7.4 Transmission control . 16
8 Event types . 17
8.1 General . 17
8.2 AM824 data . 20
8.3 32-bit floating-point data . 28
8.4 24-bit * 4 audio pack . 28
8.5 32-bit generic data . 29
9 FDF definition . 29
9.1 Introduction . 29
9.2 Basic format . 30
9.3 Special format . 31
10 FDF definition for AM824 data . 32
10.1 Definition of N-flag . 32
10.2 Supplementary SFC definition . 32
10.3 Clock-based rate control mode (FDF = 0000 0xxx ) . 33
10.4 Command-based rate control mode (FDF = 00001xxx ) . 34
11 AM824 adaptation process . 35
11.1 Introduction . 35
11.2 Basic sequence conversion . 35
11.3 Sequence multiplexing . 35
11.4 Compound data block structure . 36
12 AM824 sequence adaptation layers . 40
12.1 General . 40
12.2 DVD-Audio . 56
12.3 SACD definition . 59
61883-6 IEC:2005 – 3 –
Annex A (informative) Blocking transmission method . 64
Annex B (informative) Synchronization issues . 66
Annex C (informative) Catching up in non-blocking transmission method . 68
Annex D (informative) Transport characteristics . 69
Bibliography . 77
Figure 1 – Reference model for audio and music data transmission . 10
Figure 2 – Reference model for AM824 data transmission . 11
Figure 3 – Implementation example of receiver . 12
Figure 4 – Isochronous packet header . 13
Figure 5 – Common isochronous packet (CIP) format . 14
Figure 6 – Non-blocking transmission method . 16
Figure 7 – Transmission parameters . 17
Figure 8 – Cluster events . 18
Figure 9 – Pack and cluster events . 19
Figure 10 – Pack event with 24-bit event sequence. 19
Figure 11 – Generic AM824 format . 20
Figure 12 – AM824 data with SUB LABEL . 20
Figure 13 – AM824 LABEL allocation map (informative) . 21
Figure 14 – IEC 60958-conformant data format . 22
Figure 15 – MBLA data . 22
Figure 16 – Raw audio data . 23
Figure 17 – Alignment of 20-bit data in 24-bit field . 23
Figure 18 – MIDI conformant data format . 24
Figure 19 – No-data format . 24
Figure 20 – High-precision multi-bit linear audio data . 25
Figure 21 – Generic high-precision quadlet sequence . 25
Figure 22 – Generic ancillary data . 26
Figure 23 – Ancillary no data . 26
Figure 24 – General format for ASID . 27
Figure 25 – General format for application-specific ancillary data . 28
Figure 26 – 32-bit floating-point data format .
...
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