We investigate the short-term association between multidimensional acoustic characteristics of everyday ambient sound and continuous mean heart rate. We used in-market data from hearing aid users who logged ambient acoustics via smartphone-connected hearing aids and continuous mean heart rate in five-minute intervals from their own wearables. We find that acoustic characteristics explain approximately 4% of the fluctuation in mean heart rate throughout the day. Specifically, increases in ambient sound pressure intensity are significantly related to increases in mean heart rate, corroborating prior laboratory and short-term real-world data. In addition, increases in ambient sound quality, that is, more favourable signal to noise ratios are associated with decreases in mean heart rate. Our findings document a previously unrecognized mixed influence of everyday sounds on cardiovascular stress, and that the relationship is more complex than is seen from examination of sound intensity alone. Thus, our findings highlight the relevance of ambient environmental sound in models of human ecophysiology.

中文翻译：

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日常声学环境及其与人心率的关系：使用助听器和可穿戴设备的真实数据记录的证据

我们调查了日常环境声音的多维声学特征与连续平均心率之间的短期关联。我们使用了助听器用户的市场数据，这些用户通过连接智能手机的助听器记录了周围的声学状况，并从自己的可穿戴设备每隔五分钟采集一次连续平均心率。我们发现，声学特性可以解释全天平均心率波动的大约4％。具体而言，环境声压强度的增加与平均心率的增加显着相关，从而证实了先前的实验室数据和短期实际数据。另外，环境声音质量的提高，即，更有利的信噪比与平均心率的降低有关。我们的发现记录了以前无法识别的日常声音对心血管压力的混合影响，并且这种关系比仅从声音强度的检查中发现的更为复杂。因此，我们的发现突出了环境环境声音在人类生态生理学模型中的相关性。