Comment on I hate audio animal repellers

workerONE@lemmy.world ⁨1⁩ ⁨week⁩ ago

• Ephera@lemmy.ml ⁨1⁩ ⁨week⁩ ago

  I can hear them, too. The upper limit for what humans may be able to hear is around 20 kHz, so 15.5 kHz is well within range.
  Of course, not everyone can hear them. Some folks just don’t have the same range, but in particular also the older you get, the less flexible the eardrum becomes, which zaps that range, too.

  And yes, they sound fucking awful and give me instant headache, which is perhaps unsurprising as that’s literally how they deter other animals. I wish they were illegal or at least regulated to actually be out of hearing range.

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