电声学.助听器.第15部分:带类语言信号的助听器的信息处理表征方法

[中文适用范围]： 本部分 IEC 60118 规定了一种旨在代表正常语音的测试信号，即国际语音测试信号（ISTS），以及测量气导助听器信号处理特性的程序和要求。这些测量用于推导估计插入增益（EIG）。为了表征助听器用于生产、供应和交付的目的，还规定了在 IEC 60318-5 中定义的 2 cm³ 耦合器上推导耦合增益的程序和要求。该程序使用类语音测试信号，助听器设置设置为针对个人最终用户编程的设置，或制造商针对一系列平坦、中度斜坡或陡峭斜坡听力图推荐的典型最终用户的设置，以便测量的特性可与佩戴者在典型用户设置下获得的特性进行比较。本标准的目的是确保按照所述程序并使用符合这些要求的设备对助听器进行的相同测量，给出实质上相同的结果。适用于应用非线性处理技术的助听器信号处理特性的测量仅对所使用的测试信号有效。需要不同测试信号或测试条件的测量不在本标准范围内。只有当测量结果（加上测试实验室的实际扩展测量不确定度）完全位于本标准规定的公差范围内时，才证明符合本标准的规范。考虑助听器与个人耳朵的声学耦合以及最终用户个体解剖变异对助听器声学性能影响的测量方法（称为真耳测量）不在本特定标准的范围内。 [外文原描述]： IEC 60118-15:2012 specifies a test signal designed to represent normal speech, the International Speech Test Signal (ISTS), together with the procedures and the requirements for measuring the characteristics of signal processing in air-conduction hearing aids. The measurements are used to derive the estimated insertion gain (EIG). For the purposes of characterizing a hearing aid for production, supply and delivery, the procedures and requirements to derive the coupler gain on a 2 cm3 coupler as defined in IEC 60318-5 are also specified. The purpose of this standard is to ensure that the same measurements made on a hearing aid following the procedures described, and using equipment complying with these requirements, give substantially the same results. Measurement methods that take into account the acoustic coupling of a hearing aid to the individual ear and the acoustic influence of the individual anatomical variations of an end-user on the acoustical performance of the hearing aid, known as real-ear measurements, are outside the scope of this particular standard.