ISO 11904-2:2021 声学 从靠近耳朵的声源发出的声音的测定 第2部分：使用人体模型的技术

标准编号：ISO 11904-2:2021

中文名称：声学 从靠近耳朵的声源发出的声音的测定 第2部分：使用人体模型的技术

英文名称：Acoustics — Determination of sound immission from sound sources placed close to the ear — Part 2: Technique using a manikin

发布日期：2021-03

标准范围

This document specifies basic framework measurement methods for sound immission from sound 
sources placed close to the ear. These measurements are carried out with a manikin, equipped 
with ear simulators including microphones. The measured values are subsequently converted into 
corresponding free-field or diffuse-field levels. The results are given as free-field related or diffuse-
field related equivalent continuous A-weighted sound pressure levels. The technique is denoted the 
manikin technique.
This document is applicable to exposure to sound from sources close to the ear, for example during 
equipment tests or at the workplace to sound from earphones or hearing protectors with audio 
communication facilities.
This document is applicable in the frequency range from 20 Hz to 10 kHz. For frequencies above 10 kHz, 
ISO 11904-1 can be used.

标准预览图