Comments on: Annoy your friends with high pitched noise http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/ Fresh hacks every day Tue, 24 Nov 2009 04:28:51 +0000 http://wordpress.com/ hourly 1 By: g. wilson http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-48678 g. wilson Sat, 01 Nov 2008 18:16:48 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-48678 Anyone out there know where to find a stronger device that could be aimed at a neighbor's house across the street who has horrible parties all the time? It might just curb the urge to party quite so hard. If anyone knows where I could buy such a device, I would appreciate the info. Thanks! Anyone out there know where to find a stronger device that could be aimed at a neighbor’s house across the street who has horrible parties all the time? It might just curb the urge to party quite so hard. If anyone knows where I could buy such a device, I would appreciate the info. Thanks!

]]> By: AGiganticPanda http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39425 AGiganticPanda Tue, 29 Jul 2008 19:56:14 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39425 @ Alex Fox<br><br>Sorry if everything in the world isn't as serious as you. @ Alex Fox

Sorry if everything in the world isn’t as serious as you.

]]> By: ries http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39424 ries Thu, 24 Jul 2008 21:28:33 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39424 16 years ago ive put 555 at 3kHz and piezo behind the whiteboard in the classroom and decided to sit in the back of the room that time. <br>always after 15 minutes the teacher went out with headache and we were... free!<br> 16 years ago ive put 555 at 3kHz and piezo behind the whiteboard in the classroom and decided to sit in the back of the room that time.
always after 15 minutes the teacher went out with headache and we were… free!

]]> By: Solenoidclock http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39423 Solenoidclock Wed, 23 Jul 2008 23:44:36 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39423 I've seen a million retail variations of these, and I've made a few myself. Best one was a real zippy sounding circuit cannibalized from a remote control locater. I hid it inside a frosted light bulb. It triggered when light dropped below a threshold, night with lights off. I wanted to make it charge parasitically off the mains when the lights were on, but none of the components would fit past the neck of the glass. Given as a gift to my buddy Carlos to thwart his roommates that never do basic household maintainance, such as changing light bulbs. I’ve seen a million retail variations of these, and I’ve made a few myself. Best one was a real zippy sounding circuit cannibalized from a remote control locater. I hid it inside a frosted light bulb. It triggered when light dropped below a threshold, night with lights off. I wanted to make it charge parasitically off the mains when the lights were on, but none of the components would fit past the neck of the glass. Given as a gift to my buddy Carlos to thwart his roommates that never do basic household maintainance, such as changing light bulbs.

]]> By: PocketBrain http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39422 PocketBrain Wed, 23 Jul 2008 20:40:44 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39422 Heyyyyyy Tippy Turtle! Tippy did it the easy way in the '80s by pulling the sound unit out of an electronic birthday card. It's difficult to pinpoint because it's placed out of line-of-sight, so the sound has to spread, and the square-wave electronic notes have a lot of high-frequency harmonics, so your ears can't lock onto the direction because you can't resolve the phase differences, a prime component of stereo/directional hearing. Heyyyyyy Tippy Turtle! Tippy did it the easy way in the ’80s by pulling the sound unit out of an electronic birthday card. It’s difficult to pinpoint because it’s placed out of line-of-sight, so the sound has to spread, and the square-wave electronic notes have a lot of high-frequency harmonics, so your ears can’t lock onto the direction because you can’t resolve the phase differences, a prime component of stereo/directional hearing.

]]> By: alex fox http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39421 alex fox Wed, 23 Jul 2008 20:01:27 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39421 what the hell is this crap? this is a hack? try doing something constructive--or, if destructive, at least put some damn ingenuity into it<br><br>this is pathetic. might as well start showcasing "how to h4x your friends aol" cause thats just about as mature and just about as much of a "hack"<br><br>pathetic. what the hell is this crap? this is a hack? try doing something constructive–or, if destructive, at least put some damn ingenuity into it

this is pathetic. might as well start showcasing “how to h4x your friends aol” cause thats just about as mature and just about as much of a “hack”

pathetic.

]]> By: Adam Ziegler http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39420 Adam Ziegler Wed, 23 Jul 2008 18:45:54 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39420 I made a device years ago that emitted a continuously high pitched loud signal called "Pandora's Box". It was always associated with other phreaking boxes, but had nothing to do with phones?! The signal freq was adjustable... the idea was you set it below what was audible, and it would cause headaches to people in the room. It was quite annoying. I made a device years ago that emitted a continuously high pitched loud signal called “Pandora’s Box”. It was always associated with other phreaking boxes, but had nothing to do with phones?! The signal freq was adjustable… the idea was you set it below what was audible, and it would cause headaches to people in the room. It was quite annoying.

]]> By: Christopher Reitmann http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39419 Christopher Reitmann Wed, 23 Jul 2008 16:41:09 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39419 Hahahahahaha I made something similar in 8th grade. I don't think it was quite 17khz (probably somewhere between that and 16khz) because my forty something year old dad was able to hear it. I made it in 8th grade and hid it behind the blinds of one of the windows in the class room. Two of the other students finally found it. Hahahahahaha I made something similar in 8th grade. I don’t think it was quite 17khz (probably somewhere between that and 16khz) because my forty something year old dad was able to hear it. I made it in 8th grade and hid it behind the blinds of one of the windows in the class room. Two of the other students finally found it.

]]> By: Ben Russon http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39418 Ben Russon Wed, 23 Jul 2008 09:15:24 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39418 I built one of these that was similar, not as high pitched, but it had a photo-diode, and every time you turned out the lights it would start making noise, then when you turned them back on it would stop making noise... :) I built one of these that was similar, not as high pitched, but it had a photo-diode, and every time you turned out the lights it would start making noise, then when you turned them back on it would stop making noise… :)

]]> By: highschooler http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39417 highschooler Wed, 23 Jul 2008 06:20:30 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39417 I'm thinkin glue a magnet on the back of like 20 of these so they stick to the ceiling of my high school, set a delay, plant, and walk away. I’m thinkin glue a magnet on the back of like 20 of these so they stick to the ceiling of my high school, set a delay, plant, and walk away.

]]> By: Hungry_Myst http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39416 Hungry_Myst Wed, 23 Jul 2008 05:43:37 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39416 @Eliot, thanks! @Eliot, thanks!

]]> By: MadEngineer http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39415 MadEngineer Wed, 23 Jul 2008 03:57:05 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39415 add monitoring of light and sound (below that of the speaker) levels that when triggered, silences it to make it even harder to find. add monitoring of light and sound (below that of the speaker) levels that when triggered, silences it to make it even harder to find.

]]> By: j http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39414 j Wed, 23 Jul 2008 03:53:00 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39414 The only thing that would make this better is if it were mobile so it could hide itself some where new after each time it goes off. Oh and maybe encasing it in some sort of shock-o-matic housing so that when somebody does find it and picks it up it would zap the crap out of em. Hey if your looking to annoy people, especially teenagers I say go the distance. The only thing that would make this better is if it were mobile so it could hide itself some where new after each time it goes off. Oh and maybe encasing it in some sort of shock-o-matic housing so that when somebody does find it and picks it up it would zap the crap out of em. Hey if your looking to annoy people, especially teenagers I say go the distance.

]]> By: Eliot http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39413 Eliot Wed, 23 Jul 2008 02:21:33 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39413 @hungry_myst fixed @hungry_myst fixed

]]> By: Hungry_Myst http://hackaday.com/2008/07/22/annoy-your-friends-with-high-pitched-noise/comment-page-1/#comment-39412 Hungry_Myst Wed, 23 Jul 2008 01:13:28 +0000 http://hackaday.iheartcashews.com:8181/2008/07/22/annoy-your-friends-with-high-pitched-noise/#comment-39412 Woo, I made it to Hack A Day!<br><br>One thing tough: s/she/he/ Woo, I made it to Hack A Day!

One thing tough: s/she/he/

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