标准摘要
[中文适用范围]： 本部分IEC 60645规定了描述短时程听觉参考信号和测试信号的物理特征（以电波形表示）的方法及其测量方法。本文件的目的是确保短时程听觉刺激以相同的方式进行规范和测量，并使用定义的方法对使用此类信号的设备进行校准。本文件不描述短时程测试信号的使用方法。 [外文原描述]： IEC 60645-3:2020 specifies a means of describing the physical characteristics, in terms of electrical waveforms, of audiometric reference and test signals of short duration and methods for their measurement. The object of this document is to ensure that audiometric stimuli of short duration are specified and measured in the same way and that the calibration of equipment using such signals is carried out using defined methods. This document does not describe the method of use of short-duration test signals. IEC 60645-3:2020 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new figures of reference signals; b) changes in definitions.
英文名称Electroacoustics - Audiometric equipment - Part 3: Test signals of short duration