音响系统设备.第7部分:头戴式受话器及耳机

[中文适用范围]： 本部分 IEC 60268 适用于耳机、头戴式耳机、耳塞和耳挂式耳机，旨在用于人体耳朵上或耳朵内。它也适用于设备，如前置放大器、无源网络和电源，这些设备构成耳机系统的组成部分。 它不涉及： a) 安全性，应参考 IEC 60065 或其他适当标准； b) 头戴式耳机麦克风的特性，应参考 IEC 60268-4； c) 助听器的耳塞和其他设备，应参考 IEC 60118-0； d) 用于听力测定的耳机； e) 耳机和其他构成主动耳罩系统一部分的设备，尽管其某些规定可能适用。 本标准规定了制造商应包含在规格中的特性以及相关的测量方法。它包括不同类型耳机的分类，主要通过换能器与耳朵的声学耦合方式进行分类，以及可用于标记的分类代码。 [外文原描述]： IEC 60268-7:2010, is applicable to headphones, headsets, earphones and earsets, intended to be used on, or in, the human ear. It also applies to equipment, such as pre-amplifiers, passive networks and power supplies which form an integral part of the headphone system. It specifies the characteristics which should be included by the manufacturer in specifications, and relevant methods of measurement. It includes a classification of the different types of earphone, mainly characterized by the way in which the transducer is coupled acoustically to the ear, and a classification code which may also be used for marking. cancels and replaces the second edition published in 1996, and constitutes a technical revision. This edition contains the following changes: - clause/subclause renumbering in accordance with ISO/IEC Directives, Part 2; - addition of a measurement system using HATS; - addition of details on pinna simulators for high measurement reproducibility, see Annex A. The contents of the corrigendum of November 2012 have been included in this copy.