IEC 61606-2:20 09（E）适用于消费者使用的音频和视听设备的数字音频部分的音频特性的基本测量方法。它规定了消费设备的测量条件和方法。IEC 61606-1中描述了常见的测量条件和方法。它构成技术修订。与第一版相比的重大技术变化如下: -改变了预处理的周期； -在测量仪器中添加加权过滤器； -更正错误的参考编号； -改进了一些不恰当的描述。 本出版物应与IEC 61606-1:20 09一起阅读。

IEC 61606-2:2009(E) is applicable to the basic measurement methods of the audio characteristics of the digital audio part of audio and audiovisual equipment for consumer use. It specify conditions and methods of measurement for consumer equipment.The common measuring conditions and methods are described in IEC 61606-1. It constitutes a technical revision. The significant technical changes with respect to the first edition are the following:
- changed the period of preconditioning;
- add A weighting filter in measuring instruments;
- correct the wrong reference number;
- some inappropriate descriptions have been improved.

This publication is to be read in conjunction with IEC 61606-1:2009.