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Investigations of indoor noise criteria systems based on human perception and task performance.

机译：基于人类感知和任务绩效的室内噪声标准系统研究。

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摘要

Several noise criteria methods commonly used in architectural acoustics have been quantitatively related to human noise perception and task performance under a variety of heating, ventilating, and air-conditioning (HVAC) systems-induced background noise conditions. The five criteria examined were: Noise Criteria (NC), Balanced Noise Criteria (NCB), Room Criteria (RC), Room Criteria Mark II (RC Mark II), and A-weighted Equivalent Sound Pressure Level (LAeq ).; The project was completed over three phases. Phase I included twelve background noise conditions controlled to be non-varying over time and non-tonal, while exhibiting neutral, rumbly, roaring, or hissy characteristics. Phase II was conducted as an intermediate study to examine specifically the effects of exposure time length and types of performance tasks used. Phase III investigated the effects of background noise exposures containing various levels of discrete tones across a frequency range from 120 to 595 Hz. Under each noise condition, subjects completed performance tasks and answered questions about their perception of the acoustic environment.; Results show that task performance is significantly affected by occupant perception of noise, but this relationship is not fully demonstrated by the criteria systems analyzed. It was also found that the five criteria analyzed are generally well suited in describing subjective loudness perception, but that some discrepancies in criteria ratings of spectral quality and subjective perception exist. Finally, perception of annoyance and tonality changed based on the frequency and prominence of discrete tones in noise, but these changes were not reflected in the criteria level or spectral quality ratings. Based on the findings of this work, modifications to the existing criteria are recommended.
机译：在各种供暖，通风和空调（HVAC）系统引起的背景噪声条件下，建筑声学中常用的几种噪声标准方法已与人类的噪声感知和任务性能定量相关。检查的五个标准是：噪声标准（NC），平衡噪声标准（NCB），房间标准（RC），房间标准II级（RC Mark II）和A加权等效声压级（LAeq）。该项目分三个阶段完成。第一阶段包括十二种背景噪声条件，这些条件被控制为随时间不变且无音调，同时表现出中性，隆隆声，咆哮或嘶哑的特征。第二阶段是作为一项中间研究进行的，目的是专门检查暴露时间长短和所用绩效任务类型的影响。第三阶段研究了在120至595 Hz频率范围内包含各种级别的离散音调的背景噪声暴露的影响。在每种噪声条件下，受试者都要完成表演任务并回答有关其对声环境的感知的问题。结果表明，任务的执行情况显着影响了乘员对噪声的感知，但是这种关系并未通过所分析的标准系统得到充分证明。还发现分析的五个标准通常非常适合于描述主观响度感知，但是在频谱质量和主观感知的标准评级上存在一些差异。最后，烦恼和音调的感知基于噪声中离散音调的频率和突出程度而变化，但是这些变化未反映在标准级别或频谱质量等级中。根据这项工作的发现，建议对现有标准进行修改。

著录项

  • 作者

    Bowden, Erica Eileen.;

  • 作者单位

    The University of Nebraska - Lincoln.;

  • 授予单位 The University of Nebraska - Lincoln.;
  • 学科 Engineering Civil.; Architecture.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 276 p.
  • 总页数 276
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;建筑科学;
  • 关键词

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