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Review of objective room acoustics measures and future needs

机译:审查客观的房间声学措施和未来需求

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摘要

ISO 3382-1 describes a number of objective room acoustics parameters that are generally accepted as useful for rating some specific aspects of concert hall sound fields. They include measures of decay times, energy ratios, measures of sound strength and several quantities related to the spatial aspects of sound fields. In most cases there are details of the measures, or their application, that raise questions. In general, there has not been a lot of practical research to explore how best to develop and use these objective measures to evaluate conditions in concert halls. For some well established measures such as Early Decay Time (EDT), we are not really sure how best to calculate their values. For other measures such as energy ratios, modifications are often proposed but without the support of subjective evaluations of the proposed changes. In other cases, such as measures of spatial impression, two approaches have been suggested, but their relative merits are not well understood. It is easy to propose ever more complex measures, but it is much more difficult to demonstrate their general utility. On the other hand, some commonly described characteristics do not have accepted related objective measures. Many more important and more general problems relate to the need, for design criteria in terms of each quantity, and for an improved understanding of just noticeable differences for each measure. This paper discusses each measure illustrating particular problems with measurements in various halls.
机译:ISO 3382-1描述了许多客观的房间声学参数,这些参数通常被认为有助于对音乐厅声场的某些特定方面进行评级。它们包括衰减时间,能量比,声强的度量以及与声场的空间方面有关的几个量度。在大多数情况下,这些措施或其应用的细节会引起疑问。通常,没有太多的实践研究来探索如何最好地开发和使用这些客观的方法来评估音乐厅的状况。对于诸如早衰时间(EDT)之类的完善措施,我们真的不确定如何最好地计算它们的值。对于诸如能量比之类的其他度量,经常提出修改建议,但没有对所建议的更改进行主观评估的支持。在其他情况下,例如对空间印象的度量,已经提出了两种方法,但是它们的相对优点尚不清楚。提出更复杂的措施很容易,但是要证明它们的通用性却要困难得多。另一方面,一些通常描述的特征尚未接受相关的客观指标。许多更重要,更笼统的问题与需求有关,涉及每种数量的设计标准,以及对每种度量的明显差异的更好理解。本文讨论了每种措施,这些措施说明了各个大厅中的测量存在的特定问题。

著录项

  • 来源
    《Applied Acoustics》 |2011年第10期|p.713-720|共8页
  • 作者

    J.S. Bradley;

  • 作者单位

    Institute for Research in Construction, National Research Council, 1200 Montreal Rd., Ottawa, Canada K1A 0R6;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    room acoustics; objective measures; concert hall acoustics;

    机译:室内声学;客观措施;音乐厅声学;
  • 入库时间 2022-08-17 13:30:37

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