IEC 61606-2:2009

Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics - Part 2: Consumer use

IEC 61606-2:2009 is applicable to the basic measurement methods of the audio characteristics of the digital audio part of audio and audiovisual equipment for consumer use. It specify conditions and methods of measurement for consumer equipment.The common measuring conditions and methods are described in IEC 61606-1. It constitutes a technical revision. The significant technical changes with respect to the first edition are the following:
- changed the period of preconditioning;
- add A weighting filter in measuring instruments;
- correct the wrong reference number;
- some inappropriate descriptions have been improved.
This publication is to be read in conjunction with IEC 61606-1:2009.

Equipements audio et audiovisuels - Parties audionumériques - Méthodes fondamentales pour la mesure des caractéristiques audio - Partie 2: Utilisation grand public

L'IEC 61606-2:2009 est applicable aux méthodes fondamentales pour la mesure des caractéristiques audio de la partie audionumérique des équipements audio et audiovisuels destinés à l'usage grand public.
Les conditions et les méthodes de mesure communes sont décrites par l’IEC 61606-1. La présente Norme internationale spécifie les conditions et les méthodes de mesure relatives aux équipements grand public.
L'IEC 61606-2:2009 annule et remplace la première édition publiée en 2003. Elle constitue une révision technique.
Les modifications techniques majeures par rapport à la première édition sont les suivantes:
- modification de la période de préconditionnement;
- adjonction d'un filtre de pondération A dans les appareils de mesure;
- correction du numéro de référence erroné;
- certaines descriptions inadaptées ont été améliorées.

General Information

• Status: Published
• Publication Date: 08-Jul-2009
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.01 - Audio, video and audiovisual systems in general
• Technical Committee: TA 20 - Analogue and digital audio
• Current Stage: PPUB - Publication issued
• Start Date: 15-Aug-2009
• Completion Date: 09-Jul-2009

Relations

• Revises: IEC 61606-2:2003 - Audio and audiovisual equipment - Digital audio parts - Basic measurement methods of audio characteristics - Part 2: Consumer use
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61606-2 ®
Edition 2.0 2009-07
INTERNATIONAL
STANDARD
Audio and audiovisual equipment – Digital audio parts – Basic measurement
methods of audio characteristics –
Part 2: Consumer use
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester.
If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,
please contact the address below or your local IEC member National Committee for further information.

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IEC 61606-2 ®
Edition 2.0 2009-07
INTERNATIONAL
STANDARD
Audio and audiovisual equipment – Digital audio parts – Basic measurement
methods of audio characteristics –
Part 2: Consumer use
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
W
ICS 33.160.01 ISBN 978-2-88910-548-9
– 2 – 61606-2 © IEC:2009(E)
CONTENTS
FOREWORD.5
1 Scope.7
2 Normative references .7
3 Terms, definitions, explanations and rated values .7
3.1 Terms and definitions .7
3.2 Explanation of terms “jitter” .8
3.3 Digital interface for measurement .8
3.4 Rated values .8
4 Measuring conditions.8
4.1 General .8
4.2 Environmental conditions .8
4.3 Power supply.8
4.4 Test signal frequencies .8
4.5 Standard setting .8
4.6 Preconditioning .9
4.7 Measuring instruments .9
4.7.1 General .9
4.7.2 Digital level meter.9
4.7.3 Distortion meter.9
4.7.4 Analogue weighting filter .10
4.7.5 Digital weighting filter .10
4.7.6 Digital spectrum analyzer .10
5 Methods of measurement (digital-in/analogue-out) .10
5.1 General .10
5.2 Input/output characteristics .10
5.2.1 Maximum output amplitude .10
5.2.2 Gain difference between channels .11
5.3 Frequency characteristics.11
5.3.1 Frequency response .11
5.3.2 Group delay (phase linearity).12
5.4 Noise characteristics .13
5.4.1 Signal-to-noise ratio .13
5.4.2 Dynamic range .13
5.4.3 Out-of-band noise ratio.14
5.4.4 Channel separation .15
5.5 Distortion characteristics .16
5.5.1 Level non-linearity .16
5.5.2 Distortion and noise.17
5.5.3 Intermodulation.17
6 Methods of measurement (analogue-in/digital-out) .18
6.1 General .18
6.2 Input/output characteristics .18
6.2.1 Analogue to digital level calibration .18
6.2.2 Maximum allowable input amplitude.20
6.2.3 Gain difference between channel and tracking error .21
6.3 Frequency characteristics.23

61606-2 © IEC:2009(E) – 3 –
6.3.1 Frequency response .23
6.3.2 Group delay.24
6.4 Noise characteristics .25
6.4.1 Signal-to-noise ratio (idle channel noise) .25
6.4.2 Dynamic range .27
6.4.3 Folded noise.28
6.4.4 Cross-talk.29
6.4.5 Channel separation .31
6.5 Distortion characteristics .33
6.5.1 Level non-linearity .33
6.5.2 Distortion and noise.34
6.5.3 Intermodulation.35

Figure 1 – Connection diagram of equipment .11
Figure 2 – Connection diagram of equipment .11
Figure 3 – Connection diagram of equipment .12
Figure 4 – Connection diagram of equipment .13
Figure 5 – Connection diagram of equipment .14
Figure 6 – Connection diagram of equipment .14
Figure 7 – Connection diagram of equipment .15
Figure 8 – Connection diagram of equipment .16
Figure 9 – Connection diagram of equipment .17
Figure 10 – Connection diagram of equipment .17
Figure 11 – Connection diagram of equipment .18
Figure 12 – Connection diagram of equipment .19
Figure 13 – Connection diagram of equipment .20
Figure 14 – Connection diagram of equipment .20
Figure 15 – Connection diagram of equipment .21
Figure 16 – Connection diagram of equipment .22
Figure 17 – Connection diagram of equipment .23
Figure 18 – Connection diagram of equipment .23
Figure 19 – Connection diagram of equipment .24
Figure 20 – Connection diagram of equipment .24
Figure 21 – Connection diagram of equipment .25
Figure 22 – Connection diagram of equipment .26
Figure 23 – Connection diagram of equipment .27
Figure 24 – Connection diagram of equipment .27
Figure 25 – Connection diagram of equipment .28
Figure 26 – Connection diagram of equipment .28
Figure 27 – Connection diagram of equipment .30
Figure 28 – Connection diagram of equipment .30
Figure 29 – Connection diagram of equipment .31
Figure 30 – Connection diagram of equipment .32
Figure 31 – Connection diagram of equipment .33
Figure 32 – Connection diagram of equipment .33

– 4 – 61606-2 © IEC:2009(E)
Figure 33 – Connection diagram of equipment .34
Figure 34 – Connection diagram of equipment .34
Figure 35 – Connection diagram of equipment .35
Figure 36 – Connection diagram of equipment .36

Table 1 – Levels for measurement .16
Table 2 – Interfering frequency .29

61606-2 © IEC:2009(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
AUDIO AND AUDIOVISUAL EQUIPMENT –
DIGITAL AUDIO PARTS –
BASIC MEASUREMENT METHODS
OF AUDIO CHARACTERISTICS –
Part 2: Consumer use
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The o
...

IEC 61606-2 ®
Edition 2.0 2009-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio and audiovisual equipment – Digital audio parts – Basic measurement
methods of audio characteristics –
Part 2: Consumer use
Équipements audio et audiovisuels – Parties audionumériques – Méthodes
fondamentales pour la mesure des caractéristiques audio –
Partie 2: Utilisation grand public

All rights reserved. Unless otherwise specified, 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
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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International Standards for all electrical, electronic and related technologies.

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IEC 61606-2 ®
Edition 2.0 2009-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Audio and audiovisual equipment – Digital audio parts – Basic measurement

methods of audio characteristics –

Part 2: Consumer use
Équipements audio et audiovisuels – Parties audionumériques – Méthodes

fondamentales pour la mesure des caractéristiques audio –

Partie 2: Utilisation grand public

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.160.01 ISBN 978-2-8322-1006-3

– 2 – IEC 61606-2:2009  IEC 2009
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, explanations and rated values . 7
3.1 Terms and definitions . 7
3.2 Explanation of terms “jitter” . 8
3.3 Digital interface for measurement . 8
3.4 Rated values . 8
4 Measuring conditions . 8
4.1 General . 8
4.2 Environmental conditions . 8
4.3 Power supply . 8
4.4 Test signal frequencies . 8
4.5 Standard setting . 8
4.6 Preconditioning . 9
4.7 Measuring instruments . 9
4.7.1 General . 9
4.7.2 Digital level meter . 9
4.7.3 Distortion meter . 9
4.7.4 Analogue weighting filter . 10
4.7.5 Digital weighting filter . 10
4.7.6 Digital spectrum analyzer . 10
5 Methods of measurement (digital-in/analogue-out) . 10
5.1 General . 10
5.2 Input/output characteristics . 10
5.2.1 Maximum output amplitude . 10
5.2.2 Gain difference between channels . 11
5.3 Frequency characteristics . 11
5.3.1 Frequency response . 11
5.3.2 Group delay (phase linearity) . 12
5.4 Noise characteristics . 13
5.4.1 Signal-to-noise ratio . 13
5.4.2 Dynamic range . 13
5.4.3 Out-of-band noise ratio . 14
5.4.4 Channel separation . 15
5.5 Distortion characteristics . 16
5.5.1 Level non-linearity . 16
5.5.2 Distortion and noise . 17
5.5.3 Intermodulation. 17
6 Methods of measurement (analogue-in/digital-out) . 18
6.1 General . 18
6.2 Input/output characteristics . 18
6.2.1 Analogue to digital level calibration . 18
6.2.2 Maximum allowable input amplitude. 20
6.2.3 Gain difference between channel and tracking error . 21
6.3 Frequency characteristics . 23

6.3.1 Frequency response . 23
6.3.2 Group delay . 24
6.4 Noise characteristics . 25
6.4.1 Signal-to-noise ratio (idle channel noise) . 25
6.4.2 Dynamic range . 27
6.4.3 Folded noise . 28
6.4.4 Cross-talk . 29
6.4.5 Channel separation . 31
6.5 Distortion characteristics . 33
6.5.1 Level non-linearity . 33
6.5.2 Distortion and noise . 34
6.5.3 Intermodulation. 35

Figure 1 – Connection diagram of equipment . 11
Figure 2 – Connection diagram of equipment . 11
Figure 3 – Connection diagram of equipment . 12
Figure 4 – Connection diagram of equipment . 13
Figure 5 – Connection diagram of equipment . 14
Figure 6 – Connection diagram of equipment . 14
Figure 7 – Connection diagram of equipment . 15
Figure 8 – Connection diagram of equipment . 16
Figure 9 – Connection diagram of equipment . 17
Figure 10 – Connection diagram of equipment . 17
Figure 11 – Connection diagram of equipment . 18
Figure 12 – Connection diagram of equipment . 19
Figure 13 – Connection diagram of equipment . 20
Figure 14 – Connection diagram of equipment . 20
Figure 15 – Connection diagram of equipment .
...