建立标准化声学测量框架，让体育场噪音可跨场馆科学比较
Towards a reproducible cross-venue method for quantifying crowd noise in stadiums
- 采用分布式麦克风阵列测量，替代单一位置瞬时读数
- 提出跨场馆对比需至少多点采样，单点测量仅作最低标准
- 解决以往记录缺乏仪器、时间权重等信息的问题，适合体育场馆评估
公众对最喧闹体育场的宣称长期依赖单一位置的瞬时dB(A)峰值读数，如吉尼斯世界纪录中2014年记录的142.2 dB(A)。然而，此类测量缺乏标准化，未说明所用仪器、时间加权方式及测量点数量，导致无法进行科学的跨场馆比较。本研究提出一种测量框架：推荐采用空间分布式的声学测量以实现代表性跨场馆对比；当无法开展分布式测量时，单点锚定测量可作为最低报告基准。
原文摘要 · Abstract (English)
Public claims about the loudest stadium have been based on an instantaneous peak dB(A) reading measured at a single point, as popularised by the Guinness World Records "loudest crowd roar" category. The current record dates from 2014, where a maximum level of 142.2 dB(A) was registered. While compelling, those measurements lack standardisation, omitting relevant information such as the specific instrument that was used, the usage of time weighting, and the number of measurement positions that were tested. This lack of information does not allow a well-founded scientific comparison across sport venues. This study proposes a measurement framework in which spatially distributed acoustic measurement is the recommended route for a representative cross-venue comparison, while a single-anchor measurement can only serve as a minimum reporting baseline when distributed measurements are not feasible.
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