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08-22-2002, 10:10 PM
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#1 |
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Mondsreitersmann
Join Date: Jul 1999
Location: Skingrad
Posts: 8,781
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Fending off mosquitoes with your PC
I've heard that an asian programmer developed a proggie for fending off mosquitoes and other insects using your computer speakers. Unfortunately, I've lost the newspaper where I saw it.
Anyone knows about that program? Seems it was available as a free download.
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Darum still, füg' ich mich, wie Gott es will. Nun, so will ich wacker streiten, und sollt' ich den Tod erleiden, stirbt ein braver Reitersmann. |
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08-22-2002, 10:18 PM
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#2 |
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Banned
Join Date: Jul 2000
Location: Bakersfield,CA
Posts: 7,761
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Probably works by causing the speakers to emitt a 140 db + high pitched sound which humans cannot endure, so the human runs away from the computer, mosquitoes go after human.>results=No Mosquitoes around the computer.
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08-22-2002, 10:21 PM
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#3 |
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Mondsreitersmann
Join Date: Jul 1999
Location: Skingrad
Posts: 8,781
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ROFL!
Now seriously, it gives off a ultrasonic sound imperceptible for humans but so annoying for mosquitoes that they are unable to fly. |
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08-22-2002, 10:28 PM
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#4 |
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Banned
Join Date: Jul 2000
Location: Bakersfield,CA
Posts: 7,761
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Yeah an those Ultrasonic pest repellers they sell will keep mice away without harming pets, who have the same hearing range. So if they do not bother pets then they don't bother mice.
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08-23-2002, 12:13 AM
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#5 |
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Member (12 bit)
Join Date: Dec 1999
Location: Oklahoma
Posts: 3,261
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When I was in the Navy I remember several contractors testing products similar to what Morris spoke of. I don't remember anything of them working at all. Buy I have seen some that will kill larvae in the water, although it is in a pretty small area.
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08-23-2002, 09:31 AM
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#6 |
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Banned
Join Date: Jan 2000
Location: East of Lake Michigan -- West of Lake Huron -- South of Lake Superior and North of civilization.
Posts: 2,219
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There's a little problem with computer speakers playing back 'ultrasonic' sound. Most computer speakers have a range of 80Hz - 18KHz. Hardly ultrasonic. Even my studio reference monitors would have issues -- they are rated from 18Hz - 25KHz. Ultrasonic sound would be an octave above human hearing or 40KHz.
-Craig |
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08-23-2002, 10:30 AM
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#7 |
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Member (10 bit)
Join Date: Mar 1999
Location: Random
Posts: 997
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You mean my ultrasonic elephant repeller does not work? But, there are no elephants around.
Anyway, Audiyoda beat me to it. I doubt many applications/games use sound which cannot be heard by humans, so it stands to reason that most desktop speakers are not designed to produce sound which cannot be heard by humans. The repeller probably just plays some sound which is completely unbearable to mosquito, like polka. Respectfully, Demosthenes |
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08-23-2002, 11:25 AM
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#8 |
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Resident Slacker
Join Date: Dec 2001
Location: Suisun City, California (i know, where the hell is that?!?!?)
Posts: 2,620
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maybe it's not through the speakers... maybe he's somehow figured out how to make componant produce the vibrations and repel the bugs...
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Friends help you move. REAL friends help you move bodies. - me quite possibly the best book ever written... by me |
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08-23-2002, 05:08 PM
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#9 |
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Member (10 bit)
Join Date: Mar 1999
Location: Random
Posts: 997
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Maybe it slows your processor to just over 40KHz . . . But no, MS Windows already takes care of that.
 Respectfully, Demosthenes |
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08-26-2002, 10:31 PM
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#10 |
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Member (10 bit)
Join Date: Nov 2001
Location: West Virginia, USA
Posts: 695
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Who has problems with them bugs anyway? At least near your computer? Only time I have them, is when I am working hard outside, and sweating. I swear those bugs can see me a mile away......hehe....
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08-27-2002, 10:13 AM
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#11 |
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PC Tinkerer
Join Date: Aug 1999
Location: Long Beach, Mississippi
Posts: 2,090
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Hmmm, I have noticed that TV's emit a very high pitched sound that I find annoying. Lots of times I'll come home and find that my husband has turned off the cable box, but not the TV, leaving the TV with a blank black screen. I know instantly if the TV is on or not, because I can hear it. He obviously cannot. Maybe the guy made some program that's gonna make your monitor emit the sound. Audiyoda?
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08-27-2002, 10:17 AM
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#12 |
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Member (14 bit)
Join Date: Feb 2000
Location: Offenbach/Main (Germany)
Posts: 8,485
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wire mesh
 RJ
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All's right with the world when your PC is working right. 
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08-27-2002, 04:17 PM
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#13 | |
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Banned
Join Date: Jan 2000
Location: East of Lake Michigan -- West of Lake Huron -- South of Lake Superior and North of civilization.
Posts: 2,219
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Quote:
The artifacts are in octaves -- 60 - 120 - 240 - 480 - 960 - 1.9K - 3.8K - 7.7K - 15.3k 30.7K..... But most of the sound you would hear are out of phase of each other -- another part of artifacts. But there are some frequencies that are not out of phase or just barely out of phase -- they are in the upper band around 25-28K. -Craig |
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