Sound Ledger¹ (Races, ICUs, Silencers)

Audio culture by the numbers

7: The number of decibels that France will lower noise limits at race tracks, down to 95dB from 102dB

0: Number of patient rooms in three studied ICUs that meet the World Health Organization’s threshold for noise

85: Percent of instances when chicken distress cheeps are accurately detected by machine listening algorithms


France: ICUs: Chickens:

Originally published in the July 4, 2022, edition of the This Week in Sound email newsletter. Get it in your inbox via

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