標準號：ISO 11904-1-2002
中文標準名稱：聲學.從接近耳朵的聲源處測定聲排放強度.利用真耳中傳聲器技術(shù)(MIRE技術(shù))
英文標準名稱：Acoustics - Determination of sound immission from sound sources placed close for the ear - Part 1: Technique using a microphone in a real ear (MIRE technique)
標準類型：L31
發(fā)布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L31
國際標準分類號：11.180.15
適用范圍：This part of ISO 11904 specifies basic framework measurement methods for sound immission from sound sources placed close to the ear. These measurements are carried out with miniature or probe microphones inserted in the ear canals of human subjects. 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 microphone-in-real-ear technique (MIRE technique). This part of ISO 11904 is applicable to exposure from sources close to the ear, for example during equipment tests or at the workplace by earphones or hearing protectors with audio communication facilities. This part of ISO 11904 is applicable in the frequency range from 20 Hz to 16 000 Hz.