Post #1203837
2026-04-08 01:40 UTC
@moz
It should be possible to build a simple battery-powered electronic 'horn' that pulses a tone around 750hz, and another tone in the typical 'bell' range.
I have a few ways of generating 750hz from a portable device, but no noise cancelling headphones (of my own) for testing.
Replies (1)
-
@SuperMoosie@mastodon.au 2026-04-08 07:29
@dec23k @moz Or a 115 decibel bike air horn will just over power their headphones, make them jump 4 ft in the air and shit themselves. https://www.ansco.com.au/air-zound-xl-bike-horn-pet-cannister