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Subjective and objective evaluation of water-supply and drainage noises in apartment buildings by using a head-mounted display

机译：使用头戴式显示器对主楼的供水和排水噪声进行主观和客观评估

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摘要

To provide a novel methodology of indoor-noise evaluation by using virtual reality (VR) technology, an auditory test was conducted on water-supply and drainage noises of apartment buildings in different environments, including VR, and the influence of the head mounted display (HMD) was investigated. First, through the analyses of sound pressure level, spectrogram, and sound quality (SQ) for the noise sources of water supply and drainage measured on site, the changes were checked according to time. Furthermore, by targeting the sounds of toilet on the floor immediately below, the allowable endurance limit and annoyance level were evaluated by changing L-Aeq in four environmental set-ups: headphone, speakers, headphone and HMD, and speakers and HMD. As a result, between the use or disuse of HMD, the allowable endurance limit and annoyance level showed 6% and 8% differences on average, respectively, showing that their sound-pressure levels for 50% annoyance level differed by 2.2 dBA, and they were evaluated as most sensitive in the speakers and HMD setup. In the semantic differential test result, the scale value was evaluated as high owing to the increase in visual information through HMD. In addition, the comparison of respective noise sensitivity groups confirmed that the influence of HMD was very large. Therefore, in this study, it was confirmed that to evaluate the environmental noises in residences under a test laboratory condition, the method of using speakers and HMD simultaneously was effective for implementing a setup similar to actual on-site evaluation. (C) 2018 Elsevier Ltd. All rights reserved.
机译：为了通过虚拟现实（VR）技术提供一种新颖的室内噪声评估方法，对包括VR在内的不同环境中的公寓楼的供水和排水噪声以及头戴式显示器的影响进行了听觉测试（ HMD）。首先，通过对现场测量的给排水噪声源的声压级，声谱图和音质（SQ）进行分析，根据时间检查变化。此外，通过针对紧邻地板下方的马桶声音，通过在四个环境设置（耳机，扬声器，耳机和HMD，以及扬声器和HMD）中更改L-Aeq来评估允许的耐久极限和烦扰程度。结果，在使用或停用HMD之间，允许的忍受力极限和烦恼度水平分别平均显示6％和8％的差异，表明其对于50％烦恼度的声压级相差2.2 dBA，并且在扬声器和HMD设置中被评估为最敏感。在语义差异测试结果中，由于通过HMD增加了视觉信息，因此将标度值评估为较高。另外，通过比较各个噪声灵敏度组，可以确认HMD的影响非常大。因此，在这项研究中，可以确定，要在测试实验室条件下评估住宅中的环境噪声，同时使用扬声器和HMD的方法对于实施类似于实际现场评估的设置是有效的。 （C）2018 Elsevier Ltd.保留所有权利。

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