EN 50332-2:2013

Sound system equipment: Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 2: Matching of sets with headphones if either or both are offered separately, or are offered as one package equipment but with standardised connectors between the two allowing to combine components of different manufacturers or different design

This Part 2 of EN 50332 specifies methods of measuring the matching values for the use of personal music players and headphones/earphones defined for the use with those and with standardised connectors allowing to combine components of different manufacturers or different design sold separately in order to avoid possible hearing impairment by excessive sound pressure resulting from them. Compared with “one-package sets“ the sound pressure level at the ear cannot be fixed by only one condition but needs at least two characteristics, one each for player and the headphones/earphones, defined by the matching values for their connection. Requirements for protection against excessive sound pressure from personal music players are given in EN 60950-1:2006/A12:2011 and EN 60065:2002/A12:2011.

Elektroakustische Geräte: Kopfhörer und Ohrhörer in Verbindung mit tragbaren Audiogeräten - Verfahren zur Messung des maximalen Schalldruckpegels - Teil 2: Anpassung von Geräten und Kopfhörern, wenn eine der beiden oder beide Komponenten getrennt oder als Geräte-Komplett-Set mit normierten Steckern zur Kombination von Komponenten unterschiedlicher Hersteller oder mit unterschiedlichem Design angeboten werden

Equipement de systèmes acoustiques: Casques et écouteurs associés avec un baladeur - Méthode de mesure de niveau maximal de pression acoustique - Partie 2 : Adaptation des équipements avec des écouteurs provenant de différents fabricants, ou provenant d’un équipement complet mais avec des connecteurs normalisés entre les deux, permettant d’associer des composants provenant de différents fabricants ou bien de conception différente

Elektroakustične naprave: Naglavne in ušesne slušalke s pripadajočimi osebnimi glasbenimi predvajalniki - Metodologija za merjenje ravni največjega zvočnega tlaka - 2. del: Ujemanje elektroakustičnih naprav z naglavnimi slušalkami, če so ene ali druge ponujene ločeno ali v enem kompletu, vendar s standardiziranimi konektorji za medsebojno povezavo, ki omogočajo kombiniranje komponent različnih proizvajalcev ali različnih zasnov

General Information

• Status: Published
• Publication Date: 24-Oct-2013
• ICS: 17.140.50 - Electroacoustics
• ICS: 33.160.50 - Accessories
• Technical Committee: CLC/TC 108X - Safety of electronic equipment within the fields of Audio/Video, Information Technology and Communication Technology
• Drafting Committee: CLC/TC 108X - Safety of electronic equipment within the fields of Audio/Video, Information Technology and Communication Technology
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 09-Mar-2022
• Ref Project: SIST EN 50332-2:2014 - Sound system equipment: Headphones and earphones associated with personal music players - Maximum sound pressure level measurement methodology - Part 2: Matching of sets with headphones if either or both are offered separately, or are offered as one package equipment but with standardised connectors between the two allowing to combine components of different manufacturers or different design

Relations

• Replaces: EN 50332-2:2003 - Sound system equipment: Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Part 2: Matching of sets with headphones if either or both are offered separately
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2014
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WODNDGHO8MHPDQMHHOHNWURDNXVWLþQLKQDSUDY]QDJODYQLPLVOXãDONDPLþHVR
HQHDOLGUXJHSRQXMHQHORþHQRDOLYHQHPNRPSOHWXYHQGDUVVWDQGDUGL]LUDQLPL
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Sound system equipment: Headphones and earphones associated with personal music
players - Maximum sound pressure level measurement methodology - Part 2: Matching
of sets with headphones if either or both are offered separately, or are offered as one
package equipment but with standardised connectors between the two allowing to
combine components of different manufacturers or different design
Elektroakustische Geräte: Kopfhörer und Ohrhörer in Verbindung mit tragbaren
Audiogeräten - Verfahren zur Messung des maximalen Schalldruckpegels -- Teil 2:
Anpassung von Geräten und Kopfhörern, wenn eine der beiden oder beide
Komponenten getrennt angeboten werden
Ta slovenski standard je istoveten z: EN 50332-2:2013
ICS:
17.140.50 Elektroakustika Electroacoustics
33.160.50 Pribor Accessories
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50332-2
NORME EUROPÉENNE
October 2013
EUROPÄISCHE NORM
ICS 17.140.50; 33.160.50 Supersedes EN 50332-2:2003
English version
Sound system equipment: Headphones and earphones associated with
personal music players -
Maximum sound pressure level measurement methodology -
Part 2: Matching of sets with headphones if either or both are offered
separately, or are offered as one package equipment but with standardised
connectors between the two allowing to combine components of different
manufacturers or different design

Equipement de systèmes acoustiques: Elektroakustische Geräte: Kopfhörer und
Casques et écouteurs associés avec un Ohrhörer in Verbindung mit tragbaren
baladeur - Audiogeräten -
Méthode de mesure de niveau maximal de Verfahren zur Messung des maximalen
pression acoustique - Schalldruckpegels -
Part 2 : Adaptation des équipements avec des Teil 2: Anpassung von Geräten und
écouteurs provenant de différents fabricants, Kopfhörern, wenn eine der beiden oder beide
ou provenant d’un équipement complet mais Komponenten getrennt angeboten werden
avec des connecteurs normalisés entre les
deux, permettant d’associer des composants
provenant de différents fabricants ou bien de
conception différente
This European Standard was approved by CENELEC on 2013-09-23. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50332-2:2013 E
Contents Page
Foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Basic conditions for specifications and measurements . 5
5 Player characteristics and methods of measurement . 5
5.1 Maximum output voltage V . 5
m
5.2 Method of measurement and conditions . 5
5.2.1 Input signal . 5
5.2.2 Operating conditions . 5
5.2.3 Method of measurement for analogue audio outputs . 5
5.2.4 Method of measurement for digital audio outputs . 5
6 Headphone/Earphone characteristics and methods of measurement . 6
6.1 Measuring equipment . 6
6.2 Simulated programme signal characteristic voltage . 6
6.3 Method of measurement arrangement and conditions . 6
6.3.1 Input signal . 6
6.3.2 Source impedance of analogue input devices . 6
6.3.3 Acoustical measurement method . 6
6.3.4 Headphones/earphones fit . 6
6.3.5 Measurement and evaluation . 6
Annex A (informative) Example test procedure for acoustic safety of listening devices . 7
A.1 Acoustic coupling between listening device’s receiver and the ear simulator on HATS
(head and torso simulator) . 7
A.1.1 General. 7
A.1.2 Circum-aural, Supra-aural and Supra-concha listening devices . 7
A.1.3 Intra-concha listening devices . 7
A.1.4 Insert type listening devices . 7
A.2 Measurement and Analysis (General) . 7
A.3 Corded analogue listening device . 8
A.4 Corded digital listening device . 8
A.5 Cordless digital listening device . 8
A.6 Listening device with multiple operating modes . 8
Bibliography . 9

- 3 - EN 50332-2:2013
Foreword
This document (EN 50332-2:2013) has been prepared by CLC/TC 108X, "Safety of electronic
equipment within the fields of Audio/Video, Information Technology and Communication Technology".
The following dates are fixed:
• latest date by which this document has to be
(dop) 2014-09-23
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards
(dow) 2016-09-23
conflicting with this document have to
be withdrawn
This document supersedes EN 50332-2:2003.
EN 50332-2:2003:
- deletion of limits;
- addition of digital signals;
- adaptations to use the term "personal music players".
EN 50332, Sound system equipment: Headphones and earphones associated with personal music
players  Maximum sound pressure level measurement methodology, is composed with the following
parts:
− Part 1: General method for "one package equipment";
− Part 2: Matching of sets with headphones if either or both are offered separately, or are offered as
one package equipment but with standardised connectors between the two allowing to combine
components of different manufacturers or different design.
The Part 1 of this standard describes conditions and procedures for combination of player units and
headphones sold as “one-package sets”. The sound pressure limitation (SPL) of these sets is lost
when players or headphones with standardised sockets and plugs are arbitrarily combined.
This Part 2 provides measurement methods for the matching values which guarantee the SPL limit
also for the aforementioned condition.
__________
1 Scope
This Part 2 of EN 50332 specifies methods of measuring the matching values for the use of personal
music players and headphones/earphones defined for the use with those and with standardised
connectors or interfaces allowing to combine components of different manufacturers or different
design sold separately in order to avoid possible hearing impairment by excessive sound pressure
resulting from them.
Compared with “one-package sets“ the sound pressure level at the ear cannot be fixed by only one
condition but needs at least two characteristics, one each for player and the headphones/earphones,
defined by the matching values for their connection.
Requirements for protection against excessive sound pressure from personal music players are given
in EN 60950-1:2006/A12:2011 and EN 60065:2002/A12:2011.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
HD 483.1 S2, Sound system equipment  Part 1: General (IEC 60268-1)
EN 50332-1:2013, Sound system equipment: Headphones and earphones associated with personal
music players  Maximum sound pressure level measurement methodology  Part 1: General
method for "one package equipment"
EN 60268-7:2011, Sound system equipment  Part 7: Headphones and earphones (IEC 60268-
7:2010)
 Octave-band and fractional-octave-band filters (IEC 61260)
EN 61260, Electroacoustics
EN 61672-1, Electroacoustics  Sound level meters  Part 1: Specifications (IEC 61672-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
NOTE For more definitions, see EN 50332-1:2013, EN 60268-7:2011 and the basic standards for electroacoustics.
3.1
portable audio headphones and earphones
headphones and earphones, which are intended to be used with personal music players and to be
mainly used for listening to the music outdoors
3.2
simulated programme signal characteristic voltage
SPCV
The input voltage for a wide band signal at an output SPL of 94 dB, defined in EN 60268-7:2011,
8.3.4.
- 5 - EN 50332-2:2013
4 Basic conditions for specifications and measurements
For basic conditions on measurements of the maximum sound pressure level, reference is made to
EN 50332-1.
5 Player characteristics and methods of measurement
5.1 Maximum output voltage V
m
The maximum output voltage of the player is a wide band value measured at the headphone output
under the conditions given in 5.2.
5.2 Method of measurement and conditions
5.2.1 Input signal
The player input signal shall be as specified in EN 50332-1:2013, Clause 5 recorded on the relevant
medium with the specified level.
5.2.2 Operating conditions
During the test, the power source used shall not deviate more than ± 3 %.
When testing, all controls shall be adjusted to the maximum sound pressure level. For example:
- noise reduction system : OFF;
- volume control : all hardware, operating system, and application volume and gain
settings exposed to a normal user shall be activated and maximised;
- tone control : all frequency equalisation settings exposed to a normal user shall
be activated and adjusted to maximise the sound pressure level.
All hardware and software processing systems, gain and tone control settings shall be set such as to
reach the maximum sound level output.
The analogue audio output shall be loaded with a resistive load of 32 Ω per channel.
NOTE The load of 32 Ω takes into account the fact that some devices derive the headphone output from a higher voltage over
an internal resistor of for example 50 Ω. These devices would result in too high output voltage at no load measurement
co
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