Tema: noise
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Observing household noise with a phone sound-level app: what the numbers can and cannot say
How to log indoor noise with a smartphone app as an observation rather than a measurement: record the app, device, weighting, metric, position and duration, keep a background row, and state the limits that the NIOSH app page itself names (a stated accuracy of ±2 dBA for its own iOS app, Android accuracy not verifiable); no exposure limit or health guidance is given.
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