SIST EN 61096:1999

SLOVENSKI STANDARD
SIST EN 61096:1999
01-april-1999
Methods of measuring the characteristics of reproducing equipment for digital
audio compact discs (IEC 61096:1992)
Methods of measuring the characteristics of reproducing equipment for digital audio
compact discs
Meßverfahren für die Eigenschaften von Wiedergabegeräten für Digital-Audio-
Compactplatten
Méthodes de mesure des caractéristiques des appareils de lecture pour les disques
compacts audionumériques
Ta slovenski standard je istoveten z: EN 61096:1993
ICS:
33.160.30 Avdio sistemi Audio systems
SIST EN 61096:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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CEI
NORME
IEC
INTERNATIONALE
1096
INTERNATIONAL
Première édition
STANDARD First edition
1992-08
Méthodes de mesure des caractéristiques
des appareils de lecture
pour les disques compacts audionumériques
Methods of measuring the characteristics
of reproducing equipment
for digital audio compact discs
réservés — Copyright — all rights reserved
CEI 1992 Droits de reproduction
©
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized
utilisée sous quelque forme que ce soit et par aucun procédé, in any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission
microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher
Bureau central de la Commission Electrotechnique Internationale 3, rue de Varembé
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Commission Electrotechnique Internationale CODE PRIX S
International Electrotechnical Commission PRICE CODE
IEC
MeieayHapogHaR 3neKTpoTexHN4ecnan HOMHCCHH
• Pour prix, voir catalogue en vigueur
For price, see current catalogue

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1096©IEC – 3 –
CONTENTS
Page
FOREWORD 5
Clause
1 Scope and object 7
2 Normative references 7
3 Terminology 9
9
4 Information required from manufacturers of CD players
4.1 Identification 9
11
4.2 Standard conditions for measurements
13
4.3 Pe rformance claims
17
4.4 Additional considerations
Measurement of electrical parameters 19
5
19
5.1 Maximum power consumption
5.2 Reference output voltage 19
5.3 Channel unbalance at 1 kHz 21
Total cross-talk attenuation 21
5.4
23
5.5 Frequency response without de-emphasis
23 5.6 Frequency response with de-emphasis
5.7 Idle channel signal-to-noise ratio 25
29
Dynamic range (active channel signal-to-noise ratio) 5.8
5.9 Distortion and noise 29
31
5.10 Modulation distortion
33
5.11 Frequency error
33
5.12 Phase difference between channels
35
5.13 Level non-linearity
37
5.14 Output polarity
5.15 Access times 37
5.16 CD player pe rformance in case of CD defects and mechanical
deviating properties 39
ANNEXES
41
Examples of available test discs A
43
B Table of measurements - Results

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1096©IEC - 5 -
INTERNATIONAL ELECTROTECHNICAL COMMISSION
METHODS OF MEASURING THE CHARACTERISTICS
OF REPRODUCING EQUIPMENT
FOR DIGITAL AUDIO COMPACT DISCS
FOREWORD
The IEC (International Electrotechnical Commission) is a worldwide organization for standardization
1)
comprising all national electrotechnical committees (IEC National Committees). The object of the IEC is to
promote international cooperation on all questions concerning standardization in the electrical and
electronic fields. To this end and in addition to other activities, the IEC publishes International Standards.
Their preparation is entrusted to technical committees; any IEC National Committee interested in
the subject dealt with may participate in this preparatory work. International, governmental and
non-governmental organizations liaising with the IEC also participate in this preparation. The IEC
collaborates closely with the International Organization for Standardization (ISO) in accordance with
conditions determined by agreement between the two organizations.
The formal decisions or agreements of the IEC on technical matters, prepared by technical committees on
2)
which all the National Committees having a special interest therein are represented, express, as nearly as
possible, an international consensus of opinion on the subjects dealt with.
They have the form of recommendations for international use published in the form of standards, technical
3)
reports or guides and they are accepted by the National Committees in that sense.
In order to promote international unification, IEC National Committees undertake to apply IEC International
4)
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
International Standard IEC 1096 has been prepared by sub-committee 60A: Sound
recording, of IEC technical committee 60: Recording.
The text of this standard is based on the following documents:
Report on Voting
DIS
60A(CO)141 60A(CO)149
Full information on the voting for the approval of this standard can be found in the report
on voting indicated in the above table.

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1096©IEC - 7 -
METHODS OF MEASURING THE CHARACTERISTICS
OF REPRODUCING EQUIPMENT
FOR DIGITAL AUDIO COMPACT DISCS
1 Scope and object
This International Standard applies to reproducing equipment for digital audio compact
discs that conform to the specifications of IEC 908.
NOTES
For convenience, this reproducing equipment will be referred to as a "CD player" throughout the text of
1
this standard.
This standard does not include specifications for listening tests (see IEC 268-13).
2
The object of this standard is to list and define the characteristics affecting the perform-
ance of CD players, to establish conditions and methods of measurement of those
characteristics, and to standardize the presentation of results.
2 Normative references
The following normative documents contain provisions which, through reference in this
text, constitute provisions of this International Standard. At the time of publication, the edi-
rties to
tions indicated were valid. All normative documents are subject to revision, and pa
agreement based on this International Standard are encouraged to investigate the possibil-
ity of applying the most recent editions of the normative documents indicated below. Mem-
bers of ISO and IEC maintain registers of currently valid International Standards.
IEC standard voltages.
IEC 38: 1983,
IEC 65: 1985, Safety requirements for mains operated electronic and related apparatus for
household and similar general use.
Octave, half-octave and third-octave band filters intended for the analysis
IEC 225: 1966,
of sounds and vibrations.
IEC 268-1: 1985, Sound system equipment - Part 1: General.
Sound system equipment - Part 2: Explanation of general terms and
IEC 268-2: 1987,
calculation methods.
Sound system equipment - Part 13: Listening tests on loudspeakers.
IEC 268-13: 1985,
15: Preferred matching values for the
IEC 268-15: 1987, Sound system equipment - Part
interconnection of sound system components.
Amendment 2 (1990).

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–9-
1096©IEC
IEC 908: 1987, Compact disc digital audio system.
IEC 958: 1989, Digital audio interface.
ISO 266: 1975, Acoustics - Preferred frequencies for measurements.
3 Terminology
Each parameter to be measured is defined in the relevant clause pertaining to measure-
ment (see clause 5). For this International Standard, the following definitions apply.
The specified value of any given parameter selected as a
3.1 reference value:
reference to which other values are compared.
The level of a sinusoidal analogue signal, whose peak
3.2 reference recorded level:
voltage corresponds to the full-scale digital coding level, represented by (7FFF)H and
(8000)H in 2's complement form, is specified as 0 dB in this standard.
reference frequency: In this standard the reference frequency is 1 kHz.
3.3
The voltage that appears across the rated load imped-
3.4 reference output voltage:
ance when reproducing reference recorded level at reference frequency.
4 Information required from manufacturers of CD players
This information falls into two distinct categories:
mandatory information which shall be clearly shown on the CD player. This require-
a)
ment is indicated by the letter "A" on the right-hand side of the page;
optional information which may be given separately, for example in an instruction
b)
manual relating to and supplied with the CD player.
It is essential that mandatory information outside the scope of this standard be also given
in the correct location as specified in the relevant standard (e.g. for aspects of safety,
see IEC 65).
4.1 Identification
A
4.1.1 Name of manufacturer and/or trade mark
A
4.1.2 Model or type and serial number (variants, if any, to be stated)

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- 11 -
1096 ©I EC
4.1.3 Mechanical characteristics of CD-player
4.1.3.1 Dimensions
(inclusively knobs, connectors and plugs at front and rear sides)
height millimetres (mm)
millimetres (mm)
width
millimetres (mm)
depth
kilograms (kg)
4.1.3.2 Total mass
4.1.3.3 Special facilities
horizontal, vertical or other
Operating position
single, multi disc player, combi player,
Systems
car, portable
Remote control
Programming
4.1.4 Electrical characteristics
A 4.1.4.1 Mains supply volts (V)
A
he rtz (Hz) 4.1.4.2 Mains frequency
A
voltamperes, watts (VA, W) 4.1.4.3 Power consumption
(digital/analogue/optical or others)
4.1.4.4 Output facilities
Environment
4.1.5
degrees Celsius (°C)
4.1.5.1 Temperature range
4.1.5.2 Relative humidity per cent (%)
kilopascals (kPa)
4.1.5.3 Air pressure
4.2 Standard conditions for measurements
For convenience in specifying how CD players are to be set up for measurement or verifi-
cation, it is necessary to define certain conditions under which the measurements shall be
made. Furthermore, these conditions shall be related to specific test discs, chosen from
the discs listed in annex A.
The following parameters are basic to the methods of measurement specified in this
standard:

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1096©IEC – 13 –
- environmental conditions;
power supply;
-
interface data.
For the guidance of CD player manufacturers, preferred values or ranges are given in
square brackets following each parameter listed below:
4.2.1 Environmental conditions
Ambient temperature [20+5 °C]
[60 ± 15 %]
Relative humidity
[96 ± 10 kPa]
Air pressure
Minimum stabilization time of
CD player at ambient temperature
[5 min]
after switching on
4.2.2 Power supply
or d.c.)
Type of supply(ies) (e.g. a.c.
Voltage(s) [see IEC 38]
Frequency(ies)
4.2.3 Interface data
4.2.3.1 Fixed analogue output
Matching values for
interconnections [see IEC 268-15, amendment 2]
4.2.3.2 Digital output [see IEC 958]
4.2.3.3 Other outputs
4.2.3.4 Test discs
The test disc used in the measurement should be chosen from the discs listed in annex A.
4.3 Performance claims
The performance claims shall be based on the CD player operating under the conditions
specified in subclause 4.2. Unless otherwise specified in 4.2.1 or 4.2.2 (for example
maximum or minimum values), a tolerance shall be allocated to each parameter.

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1096©IEC – 15 –
In case the manufacturer claims power supply voltage tolerances exceeding ±10 %, the
characteristics to be specified shall also be stated for the upper and lower limits of these
tolerances.
If variations in the frequency of the power supply, within the tolerances specified by the
manufacturer, have any significant influence on the characteristics to be specified, these
characteristics shall also be stated for the upper and lower limits of the claimed frequency
tolerances.
If harmonics in the a.c. power supply or ripple in the d.c. power supply, within the limits
specified by the manufacturer, have any significant influence on the characteristics to be
specified, those characteristics shall also be stated for the upper limit of the claimed toler-
ances of harmonic or ripple content.
4.3.1 Mechanical performance claims
4.3.1.1 Shock resistance
Under consideration.
4.3.1.2 Acoustic noise
Under consideration.
4.3.2 Electrical performance claims
For methods of
Units
measurement,
see subclauses:
4.3.2.1 General performance
Maximum power consumption VA, W 5.1
4.3.2.2 Reproducing performance
Reference output voltage V 5.2
dB 5.3
Channel unbalance at 1 kHz
Cross-talk dB 5.4
Frequency response dB 5.5
Frequency response
with de-emphasis dB 5.6
dB 5.7
Idle channel signal-to-noise (S/N)
5.8
Active channel signal-to-noise dB
5.9
Distortion and noise dB
dB or % 5.10
Intermodulation distortion
% 5.11
Frequency error
Phase difference between channels degree 5.12

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– 17 –
1096 ©I EC
5.13
Level non-linearity dB
5.14
Output polarity
Access times s 5.15
4.4 Additional considerations
4.4.1 Unless otherwise stated in the subclause pertaining to the relevant method of
measurement, the conditions specified in 4.2 shall apply.
All measurements described in 5.2 to 5.14 are carried out at the analogue output of the
equipment.
4.4.2 All measurements shall be made using specified test discs recorded without pre-
emphasis unless otherwise specified in the relevant method of measurement. Examples
are given in annex A.
4.4.3 The person who is doing the testing shall:
a) repo rt any deviations from the parameters specified in 4.2;
rt which test disc and measurement instruments have been used;
b) repo
ensure that, before measurement is started, the measurement instruments have
c)
reached stability.
4.4.4 Low-pass filter
Passband: 20 kHz
Tolerance of response within the passband: ±0,1 dB
Attenuation at 24,1 kHz: >60 dB
Attenuation at 44,1 kHz and above: >100 dB
dB •
/ // // /////
/ /////^
%^//^/^
+ 0,1
0-
- 0,1
/!///!// ///
- 60
/
//
% /f
- 100 •
20 k 24,1 k 44,1 k Hz
2 k
/EC 928/92
Figure 1 - Tolerances of low-pass filter

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1096©IEC —19-
5 Measurement of electrical parameters
Maximum power consumption
5.1
Definition
The maximum power that the CD player can draw from the electric supply during any
operation (see IEC 65).
Method
Using an a
...