BS EN 60318-4:2010 - Electroacoustics. Simulators of human head and ear. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts

BS EN 60318-4:2010

Electroacoustics. Simulators of human head and ear. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts

Status : Current   Published : July 2010

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IEC 60318-4:2010 describes an occluded-ear simulator intended for the measurement of insert earphones in the frequency range from 100 Hz to 10 000 Hz. It is suitable for air conduction hearing aids and earphones, coupled to the ear by means of ear inserts e.g. ear moulds or similar devices. The occluded-ear simulator is also suitable as the basis for an extension intended to simulate the complete ear canal and the outer ear (for instance in head simulators). The occluded-ear simulator simulates the acoustic transfer impedance for the occluded normal adult human ear. However, it does not simulate the leakage between an earmould and a human ear canal; therefore, the results obtained with the occluded-ear simulator may deviate from the performance of an insert earphone on a real ear, especially at low frequencies. Moreover, large performance variations among individual ears will occur which should be considered when using the ear simulator. Above 10 kHz the device does not simulate a human ear, but can be used as an acoustic coupler at additional frequencies up to 16 kHz. Below 100 Hz, the device has not been verified to simulate a human ear, but can be used as an acoustic coupler at additional frequencies down to 20 Hz. IEC 60318-4:2010 cancels and replaces IEC 60711, published in 1981 and constitutes a technical revision. The main changes with respect to the previous edition are listed below:


- extension of the usable frequency range to 100 Hz - 16 000 Hz;


- addition of values of maximum permitted expanded uncertainties to all tolerances.




Standard NumberBS EN 60318-4:2010
TitleElectroacoustics. Simulators of human head and ear. Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
StatusCurrent
Publication Date31 July 2010
Normative References(Required to achieve compliance to this standard)ISO/IEC Guide 98-3, EN 61094-4, IEC 61094-4
Informative References(Provided for Information)ISO 389-6, ISO 389-2, ANSI S 3.7:1995, ISO 389-5
ReplacesBS 6310:1982, IEC 60711:1981
International RelationshipsEN 60318-4:2010,IEC 60318-4:2010
Draft Superseded By06/30160356 DC
DescriptorsAcoustic equipment, Hearing aids, Earphones, Calibration, Acoustic measurement, Acoustoelectric devices, Acoustics, Artificial ears, Audiometry, Insert earphones, Measurement characteristics, Test equipment
ICS17.140.50
Title in FrenchElectroacoustique. Simulateurs de tête et d'oreille humaines. Simulateur d'oreille occluse pour la mesure des écouteurs couplés à l'oreille par des embouts
Title in GermanAkustik. Simulatoren des menschlichen Kopfes und Ohres. Simulator für den abgeschlossenen Gehörgang zur Messung an mittels Ohreinsätzen an das Ohr angekoppelten Ohrhörern
CommitteeEPL/29
ISBN978 0 580 58178 6
PublisherBSI
FormatA4
DeliveryYes
Pages24
File Size1.19 MB
Price£182.00


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