声学. 响度的计算方法. 第2部分: Moore-Glasberg法

[中文适用范围]： 本文件规定了一种估计耳科正常成年人在特定听力条件下感知到的静止声音的响度和响度水平的方法。 它提供了一种算法，用于计算使用单个麦克风、头部和躯干模拟器录制的声音或通过耳机呈现的声音的单耳或双耳响度。 该方法基于Moore-Glasberg 算法。 注 1 双耳计算的问题在附录 A 中讨论。 注 2 希望研究计算方法细节的用户可以查看或实现源代码，该源代码包含完整的信息，并随本文件一起提供，以方便用户。 该方法可应用于音调、宽带噪声和具有尖锐线谱分量的复杂声音，例如变压器嗡嗡声或风扇噪声。 注3：已经表明（见参考文献[15]），该方法可以很好地匹配ISO 226:2003中定义的等响度水平轮廓和ISO 389-7:2005中定义的听力参考阈值。 对声音事件有害影响的评估不属于本文件的范围。 [外文原描述]： ISO 532-2:2017 specifies a method for estimating the loudness and loudness level of stationary sounds as perceived by otologically normal adult persons under specific listening conditions. It provides an algorithm for the calculation of monaural or binaural loudness for sounds recorded using a single microphone, using a head and torso simulator, or for sounds presented via earphones. The method is based on the Moore-Glasberg algorithm. NOTE 1 Issues of binaural calculations are discussed in Annex A. NOTE 2 Users who wish to study the details of the calculation method can review or implement the source code, which is entirely informative and provided with ISO 532-2:2017 for the convenience of the user. This method can be applied to tones, broadband noises and complex sounds with sharp line spectral components, for example transformer hum or fan noise. NOTE 3 It has been shown (see Reference [15]) that this method provides a good match to the contours of equal loudness level as defined in ISO 226:2003 and the reference threshold of hearing as defined in ISO 389‑7:2005. The evaluation of the harmful effect of sound events is outside the scope of ISO 532-2:2017.