Effects of spatial characteristics of footsteps sounds and non-acoustic factors on annoyance in lightweight timber buildings
Effects of spatial characteristics of footsteps sounds and non-acoustic factors on annoyance in lightweight timber buildings
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DOI：
10.1016/j.buildenv.2022.109405
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发表时间：
2022-07-31
影响因子：
7.4
通讯作者：
Ariki, Ayaka
中科院分区：
文献类型：
--
作者：
Frescura, Alessia;Lee, Pyoung Jik;Ariki, Ayaka
本研究探讨了木制住宅楼上脚步声空间特征的影响，以及非声学因素对恼人程度的影响。脚步声被记录在实验室里，一个典型的轻质木托梁地板位于源和接收室之间。两个成年人在地板上以两种不同的速度（非常缓慢和正常）走过三条不同的路（8字形、笔直和原地行走）。录音的空间特征根据耳间互相关（IACC）函数的大小进行量化。总共招募了46名参与者，他们在实验室条件下评估了他们在接触噪音后的主观烦恼。在实验室实验中，通过头戴式显示器（HMD）呈现白天或夜间客厅的360度照片。此外，参与者还被要求回答有关噪音敏感性、睡眠类型和对邻居的态度的问题。结果显示，IACC对烦恼有显著影响，随着IACC的增加，烦恼也会增加。非常缓慢的脚步比正常步伐的脚步更令人讨厌。研究还发现，在白天播放客厅的视频比在晚上播放客厅的视频更让人厌烦。此外，噪音敏感性、昼夜节律和对邻居的态度在调节烦恼评分方面具有显著意义。
This study investigates the effect of spatial characteristics of footsteps sound from upstairs in wooden residential buildings together with the influence of non-acoustic factors on annoyance ratings. Footsteps sound were recorded in the laboratory, where a typical lightweight timber joists floor is located between the source and receiving room. Two adults walked on the floor over three different paths (figure-of-eight, straight, and walking on the spot) at two different paces (very slow and normal). The spatial features of the recordings were quantified in terms of the magnitude of interaural cross-correlation (IACC) function. A total of 46 participants were recruited and they assessed their subjective annoyance after exposure to noise under laboratory conditions. During the laboratory experiments, 360-degree pictures of a living room during daytime or night-time were presented via a Head-Mounted Display (HMD). In addition, the participants were asked to answer questions concerning noise sensitivity, chronotype, and attitude towards neighbours. Results highlighted that IACC had a significant effect on annoyance, showing an increase in annoyance with increasing IACC. Footsteps at a very slow pace were more annoying than those at a normal pace. It was also found that annoyance ratings with a pre-sentation of the living room during daytime were greater than those with a presence of the night-time living room. Furthermore, noise sensitivity, circadian rhythm, and attitude towards neighbours of participants were significant in moderating annoyance ratings.