EN 60268-7:1996
(Main)Sound system equipment - Part 7: Headphones and earphones
Sound system equipment - Part 7: Headphones and earphones
Applies to headphones and headsets intended to be used on the human ear. Standardizes the designation and description of headphones, and lists characteristics to be specified, with the relevant methods of measurement.
Elektroakustische Geräte - Teil 7: Kopfhörer und Ohrhörer
Equipements pour systèmes électroacoustiques - Partie 7: Casques et écouteurs
S'applique aux casques et casques microphoniques prévus pour être utilisés sur l'oreille humaine. Normalise la désignation et la description des écouteurs et énumère les caractéristiques à spécifier, ainsi que les méthodes de mesure correspondantes qui les concernent.
Sound system equipment -- Part 7: Headphones and earphones (IEC 60268-7:1996)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60268-7:1999
01-april-1999
Sound system equipment -- Part 7: Headphones and earphones (IEC 60268-7:1996)
Sound system equipment -- Part 7: Headphones and earphones
Elektroakustische Geräte -- Teil 7: Kopfhörer und Ohrhörer
Equipements pour systèmes électroacoustiques -- Partie 7: Casques et écouteurs
Ta slovenski standard je istoveten z: EN 60268-7:1996
ICS:
33.160.50 Pribor Accessories
SIST EN 60268-7:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60268-7:1999
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SIST EN 60268-7:1999
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SIST EN 60268-7:1999
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SIST EN 60268-7:1999
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SIST EN 60268-7:1999
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SIST EN 60268-7:1999
CEI
NORME
IEC
INTERNATIONALE
268-7
INTERNATIONAL
Deuxième édition
STANDARD Second edition
1996-02
systèmes électroacoustiques -
Equipements pour
Partie 7:
Casques et écouteurs
-
Sound system equipment
Part 7:
Headphones and earphones
O CEI 1996 Droits de reproduction réservés — Copyright — all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun pro- any form or by any means, electronic or mechanical,
cédé, électronique ou mécanique, y compris la photocopie et including photocopying and microfilm, without permission
les microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher.
Genève, Suisse
Bureau Central de la Commission Electrotechnique Internationale 3, rue de Varembé
Commission Electrotechnique Internationale CODE PRIX
I EC
International Electrotechnical Commission
PRICE CODE
MetHnyHapoAHae 3neKTporeXHH4ecitaa IHOMHCCHH
voir catalogue en vigueur
Pour prix, •
For price, see current catalogue
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SIST EN 60268-7:1999
268-7 © IEC:1996 - 3 -
CONTENTS
Page
5
FOREWORD
Clause
1 General 7
1.1 Scope 7
7
1.2 Normative references
11
1.3 Definitions
13 1.4 Classification, designation and coding
21
Marking of terminals, controls and polarity
1.5
21 1.6 User instructions
21 Conditions for specifications and measurements
2
21
Rated conditions 2.1
23 2.2 Standard conditions for measurement
25
2.3 Couplers and ear simulators
25
2.4 Loudness comparison conditions
27 2.5 Ear canal sound pressure level measurement conditions
27 3 Characteristics to be specified and their methods of measurement
27
3.1 Power supply
27 3.2 Electrical impedance
3.3 Input voltage 29
35 3.4 Input power
35 3.5 Sound pressure (level)
37 3.6 Frequency response
45 3.7 Amplitude non-linearity
49 Rated climatic conditions (these are rated conditions)
3.8
51 3.9 External magnetic field
51 3.10 Unwanted sound radiation
51
3.11 Sound attenuation
53
3.12 Crosstalk attenuation for multi-channel headphones
53
3.13 Application force (this is a rated condition)
53 3.14 Physical characteristics, cables and connectors
55
4 Classification of characteristics
Annexes
57
A Specification and conditions of use of a microphone for use inside the ear canal
59
Practical details of free-field comparison conditions
B
61 Practical details of diffuse-field comparison conditions
C
Practical details of the subjective comparison and ear canal sound pressure level
D
63
conditions
65
Bibliography E
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SIST EN 60268-7:1999
268-7 © IEC:1996 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
SOUND SYSTEM EQUIPMENT -
Part 7: Headphones and earphones
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.
2) The formal decisions or agreements of the IEC on technical matters, express as nearly as possible an
international consensus of opinion on the relevant subjects since each technical committee has
representa
...
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