Thirty-eight students heard spring water and traffic noise at 5 sound levels and the 50 dBA water recording produced the clearest heart and brain comfort pattern
A 50 dBA water sound stood out Thirty-eight young college students sat through a carefully controlled sound test in which the same room, light, temperature and air movement were held steady while the acoustic setting changed. In a Scientific Reports study published in 2025, researchers compared spring water sound with traffic noise at five sound…
