电声学助听器第9部分:骨传导助听器性能特性的测量方法

[中文适用范围]： 本文件规定了骨传导助听器性能特征的测量方法。所述方法可为骨传导助听器声电特性信息的交换或直接比较提供合适的基础。所选方法旨在具备实用性和可重复性，并基于选定的固定参数。本文档中规定方法所获得的结果表达了测量条件下的性能；然而，助听器在实际使用条件下的性能将取决于若干因素（例如有效负载阻抗、环境条件、声学环境等）。本文件定义了骨传导助听器特性的测量方法，包括：通过机械耦合器测量的经皮耦合装置（符合IEC 60318-6的要求）；以及通过头骨模拟器测量的骨耦合/骨锚定装置。 [外文原描述]： IEC 60118-9:2019 specifies methods for the measurement of bone conduction hearing aid characteristics. The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of bone conduction hearing aids. These methods are chosen to be practical and reproducible and are based on selected fixed parameters. The results obtained by the methods specified in this document express the performance under the conditions of measurement; however, the performance of the hearing aid under practical conditions of use will depend upon a number of factors (e.g. effective load impedance, environmental conditions, acoustical environment, etc.). This document defines methods of measurement of characteristics of bone conduction hearing aids both for • transcutaneously coupled devices measured on a mechanical coupler, meeting the requirements of IEC 60318-6, and • bone coupled/bone anchored devices measured on a skull simulator. IEC 60118-9:2019 cancels and replaces the first edition published in 1985. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) includes bone coupled devices measured on a skull simulator; b) measurement frequency range increased to 8 000 Hz for bone coupled devices.