相关实验视频
Updated: Jun 16, 2025
07:13
A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
10.9K
在不同活动环境中,噪音水平与人们短期噪音烦之间的非线性关联
Jiangyu Song1, Suhong Zhou2, Dan Zou2
1Institute of Space and Earth Information Science, Fok Ying Tung Remote Sensing Science Building, The Chinese University of Hong Kong, Hong Kong SAR, China.
Environmental research
|August 15, 2024
概括
人们对实时噪音烦比回忆烦更敏感,在各种活动中噪音水平敏感度不同. 了解这些非线性关系是有效的噪音控制政策的关键.
科学领域:
- 环境心理学 环境心理学
- 声学 声学 在声学方面
- 人类因素工程 人类因素工程
背景情况:
- 关于测量短期噪音烦及其与不同活动环境中的噪音水平的非线性关联的研究有限.
- 了解环境如何影响噪音烦对于制定有效的降噪策略至关重要.
研究的目的:
- 通过实时和回忆数据,研究噪声水平和短期噪声烦之间的非线性关联.
- 检查不同的活动环境如何改变这些非线性关系.
- 确定噪音水平在各种环境中对烦的贡献.
主要方法:
- 使用实时生态瞬间评估 (EMA) 和日重建方法 (DRM) 来测量噪声干扰.
- 使用全球定位系统 (GPS) 和便携式噪声传感器收集的噪声水平数据.
- 应用沙普利增量解释 (SHAP) 来分析非线性关联和特定环境效应.
主要成果:
- 实时噪声烦显示出对噪声水平的敏感度更高 (60 dB值) 与回忆烦 (70 dB值) 相比.
- 噪音和烦之间的非线性关联在各个活动中存在差异,在旅行和工作期间对实时烦的敏感性更高.
- 噪音水平对户外休区和旅行路线的实时烦产生了更大的影响.
结论:
- 噪声干扰与噪声水平呈现非线性关系,根据活动背景和测量方法 (实时与召回) 有显著差异.
- 噪音控制政策应考虑到这些非线性动态和特定环境的敏感性,以改善公共卫生结果.
- 这项研究提供了一种细微的理解,超出了噪音烦研究的线性模型.
相关概念视频
00:53Sound Intensity Level
4.2K
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and...
4.2K
01:21Perceiving Loudness, Pitch, and Location
203
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
203
00:58Sound Intensity
4.0K
The loudness of a sound source is related to how energetically the source is vibrating, consequently making the molecules of the propagation medium vibrate. To measure the loudness of a source, the physical quantity of interest is the intensity. This is defined as the energy emitted per unit of time per unit of area perpendicular to the sound wave's propagation direction. Since the total energy is greater if the source vibrates for a longer duration and over a larger area, dividing the...
4.0K
00:53Sound Waves: Interference
3.7K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
3.7K