BS ISO 532-1:2017规定了两种估算声音响度和响度水平的方法，如下所示: 耳科正常人在特定的听力条件下感知。第一种方法是 适用于平稳声音，第二种方法适用于任意非平稳（时变） 声音，包括作为特例的静止声音。这些方法可以应用于任何使用麦克风记录为单通道测量的声音， 或作为多通道测量，例如通过头部和躯干模拟器（见附录D）。 由于大多数重要的技术声音都是时变的，所以最好采用时变响度模型。这些方法基于Zwicker算法。[14] 本发明提供了一种用于测量静止声音的方法 连续性的原因，还提供了使用测量的三分之一倍频带电平作为输入。这个 对于任意声音，更通用的方法是根据测量的声音计算特定的响度模式 通过应用与生理和生理直接相关的信号处理模型来获取时间信号 人类听觉系统的心理特征。响度是根据特定的声音来计算的 响度模式。结果表明，该方法与许多实验结果吻合良好 使用合成声音和技术声音进行响度实验。没有关于声音特性的先验知识（例如宽带或窄带噪声、音调 内容）并且该方法的完全自动化应用不需要用户交互。声音事件有害影响的评估不在本文件范围内。 交叉引用:IEC 61260-1:2014IEC 61672-1:2013 DIN 45631:1991IEC 60050-702:1992/AMD2:2016ISO 80000-8:2007 Ed 1ISO 226:2003 Ed 2ISO 532:1975ISO 9612:2009 Ed 2DD IEC/TS 60318-7:2011ISO 3740:2000 Ed 2ISO 11200:2014 Ed 2ISO 226:1987ISO/IEC指南98-3:2008 Ed 1ISO 1996-1:2016购买本文件时可提供的所有现行修订版。

BS ISO 532-1:2017 specifies two methods for estimating the loudness and loudness level of sounds as perceived by otologically normal persons under specific listening conditions. The first method is intended for stationary sounds and the second method for arbitrary non-stationary (time-varying) sounds, including stationary sounds as a special case.The methods can be applied to any sound recorded as single-channel measurements using a microphone, or as multi-channel measurements, for example by means of a head and torso simulator (see Annex D). Since most important technical sounds are time-varying, a model of time-varying loudness is preferable.The methods are based on the Zwicker algorithm.[14] The method for stationary sounds is provided for reasons of continuity and also offers the use of measured one-third-octave-band levels as input. The more general method for arbitrary sounds calculates the specific loudness pattern based on measured time signals by applying a signal processing model that is directly related to physiological and psychological characteristics of the human hearing system. Loudness is calculated from the specific loudness pattern. It has been shown that this method provides a good match to the results of many loudness experiments using synthetic and technical sounds.No prior knowledge about the properties of the sound (e.g. broadband or narrowband noise, tonal content) and no user interactions are required for the fully automated application of the method.The evaluation of the harmful effect of sound events is outside the scope of this document.Cross References:IEC 61260-1:2014IEC 61672-1:2013 DIN 45631:1991IEC 60050-702:1992/AMD2:2016ISO 80000-8:2007 Ed 1ISO 226:2003 Ed 2ISO 532:1975ISO 9612:2009 Ed 2DD IEC/TS 60318-7:2011ISO 3740:2000 Ed 2ISO 11200:2014 ED2ISO 226:1987ISO/IEC GUIDE 98-3:2008 Ed 1ISO 1996-1:2016All current amendments available at time of purchase are included with the purchase of this document.