美国声学学会1978年公布了E计权网络的标准草案,并经 ANSI宣布采用 E网络测量工业和环境噪声。多年以来一直使用A声级测量工业和环境噪声,近年的研究表明,用E网络测量噪声(E声级)与按斯蒂文方法计算得到的噪声感觉级有较好的相关性。该项标准的目的在于把E网络的物理特性标准化 The American Society of Acoustics published a draft standard for E-weighted networks in 1978 and ANSI announced the use of E-networks to measure industrial and environmental noise. Industrial noise and ambient noise have been measured using the A-level for many years. Recent studies have shown that there is a good correlation between the measured noise (E-sound level) using the E-network and the noise-sensation level calculated by the Steven method. The purpose of this standard is to standardize the physical characteristics of E-networks