Stream-sound augmentation of traffic noise in virtual reality: experimental dataset

This is the analysis-ready dataset underlying a within-participant virtual-reality experiment on stream-sound augmentation of traffic noise. Fifty young adults each experienced one historic urban square (a virtual-reality reconstruction of Zhongshan Square, Shenyang) under four traffic-sound levels (54, 57, 60 and 63 dB(A)), each presented without and with the same water-stream recording at a -3 dB signal-to-noise ratio, giving a 4x2 within-participant design in Latin-square order of about 32 minutes per participant. For every participant-and-condition combination the table records the traffic stimulus's psychoacoustic properties (loudness, sharpness, roughness and fluctuation strength), subjective soundscape ratings (ISO 12913 pleasantness and eight bipolar attributes), and noise-sensitivity, WHO-5 wellbeing and virtual-reality-comfort covariates, together with supporting electroencephalography (EEG) and electrodermal-activity (EDA) indices. All fifty participants provided subjective ratings; 39 yielded usable EEG and 43 usable EDA. The data address three questions examined in the accompanying manuscript: the average affective benefit of stream-sound augmentation across the traffic-exposure gradient, which experiential dimension (valence versus activation) changes, and whether the reach and predictability of individual benefits favour broad or targeted provision. Records carry anonymous participant identifiers only (A-1 to A-50), with participant, traffic level and stream state forming the primary key. The dataset is released under CC BY 4.0 and should be cited together with the associated article.本数据集为可直接用于分析的数据集，支撑一项针对交通噪声溪流声增强的被试内虚拟现实实验。50名青年成年人分别在4种交通声级（54、57、60及63 dB(A)）下体验一处历史城市广场——即沈阳中山广场的虚拟现实复刻场景；每种声级分别设置无溪流声与以-3 dB信噪比播放的同款溪流录音两种条件，采用4×2被试内拉丁方实验设计，每名被试的实验时长约32分钟。针对每名被试与每种实验条件的组合，本数据表记录了交通声刺激的心理声学参数（响度、尖锐度、粗糙度与起伏强度）、主观声景评分（符合ISO 12913标准的愉悦度评分及8项双极属性评分），以及噪声敏感性、WHO-5幸福感与虚拟现实舒适度等协变量，同时附带配套的脑电图（electroencephalography, EEG）和皮肤电活动（electrodermal activity, EDA）指标。所有50名被试均完成了主观评分；其中39份脑电图数据与43份皮肤电活动数据可用。本数据集对应配套论文中探讨的三个研究问题：交通声暴露梯度下溪流声增强的平均情感增益、哪些体验维度（效价与唤醒度）发生变化，以及个体增益的覆盖范围与可预测性更适合采用普适性还是针对性的干预方案。数据仅包含匿名被试标识符（A-1至A-50），以被试ID、交通声级与溪流声状态作为联合主键。本数据集采用CC BY 4.0协议发布，引用时需与配套学术论文一同标注。