4 ms·
While I can't hear above 16KHz, lots of people can hear up to 20KHz without any trouble. To them this would sound like the highest pitch ringing you could imagi
by pilom 14y ago
While I can't hear above 16KHz, lots of people can hear up to 20KHz without any trouble. To them this would sound like the highest pitch ringing you could imagine. And don't let any dogs in the room, this would be a continuous dog whistle to them. Very annoying.
- anigbrowl 14y agoYeah, I would have a real problem with this. I can't be around those sonic rodent repellers or anything similar.
- electromagnetic 14y agoThe ironic thing is I can hear those sonic rodent repellers at the very top of my hearing range, yet my dogs are completely not bothered by it. Neither are my friends dogs, one actually goes and sleeps by the one in my living room (I don't believe the devices work, but I have yet to have a reason to bend down and remove it since I moved in).