Post #53365
2025-12-11 17:15 UTC
I wanted to get a noise meter for a long time now, but they’re expensive. A lot of daily things just sound… potentially dangerously loud. Public transit, for example.
I want something that can go a least up to 20kHz, most do just up to 8kHz. There’s one supermarket I was at once that had some “repeller” which felt painfully loud. It kept changing frequencies, lowest at 15.5kHz when I checked with my phone. I was considering throwing a rock/brick at it while waiting there, but hiding behind a corner seems fine enough with higher frequencies.
Replies (1)
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@SlurpingPus__dup_9090@lemmy.world 2025-12-11 19:52
supermarket I was at once that had some “repeller” Sounds curiously close to them ‘teenager repellents’ that emit high-pitched noise that older ears can’t hear.