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Cancelling Out CPU Fan Noise
Percy_Blakeney writes "After realizing how noisy his computer was, a professor at BYU has created a new CPU fan that uses small microphones and speakers to cancel out its own noise. It isn't perfected yet -- it only nixes the whine, not the whoosh -- but it looks like it could be promising, especially given the professor's background: making jet engines quieter."
...if it were applied to noise reduction of one's ass after a good bean based dinner. ;p
Un-news
When my CPU fan starts to make noise, I just whack my case until it stops.
Maybe on the inside. On the outside, they're already quiet enough that I miss when they're coming up behind me.
Damned cars always trying to stalk and eat me.
You can never go home again... but I guess you can shop there.
Excuse me, what did you say?
Thats really cool. Its like those amazing bose noise cancelling headphones.
I have wondered if it was possible to do this in my house. Where I live there is a lot of people who like to scream at each other alot, and it rather gets on the nerves. It would be cool if you could record your neighbourhood noises, and instantly replay them out of phase into your living room. Presto. The beautiful sounds of silence.
Once you silence my CPU, you'll hear my hard drive. After you silence my hard drive, contend with my video card cooler. Quiet my video card cooler, and hear all 4 of my case fans instead. Quiet those, and hear the active cooler on my northbridge. Shut that up, and I'll go mad with all the silence...
If my answers frighten you, stop asking scary questions.
Of course he is much smarter than I am, otherwise I wouldn't be posting on slashdot.
;)
And I'm French, remember
Iraq: war to save the U
"I have heard of something like that for cars ages ago, basically replays the engine sound over the car sound to negate it."
Alternatively instead of wasting all that money on a sound cancelling system you could just install hugeass speakers, sub and an enormous exhaust pipe, that way no-one will be able to even *hear* the engine noise over all that deafening dance music you'll be playing.
If you feel like it add undercar neons and go-faster stripes for extra style - they're guaranteed to bring the hot chicks from miles around.
Comment removed based on user account deletion
I have honestly seen computers put in freezers. Keeps it cool and eliminates noise at the same time. Leaves less room for the ice cream though.
If my answers frighten you, stop asking scary questions.
$ echo 'I CANT HEAR YOU' | rev
:)
UOY RAEH TNAC I
Ah, the silence
668.5
A Beowulf cluster of those, attached to Rush Limbaugh.
I probably should have built a noise canceling tower or some similar nonsense, so I could get published.
Instead of all the research and electronics, I put a drop of oil on the axle and removed the dust from the blades with a q-tip. It's been silent ever since.
Silly me.
Can You Say Linux? I Knew That You Could.
Sommerfeldt set about to find a way to drown out the whinny noise from built-in fans that cool computers and other electronic devices.
Did he try a fan with less horsepower?
-Rob
Marriage doesn't have to suck!
Yeah man, damn plants and cubicles never shut the hell up.
-Reid
If you reverse the wires, it sounds like a V20.
I've constructed a simple device that cancels almost all noise from my fan. A common #2 pencil inserted into the fan blades does the trick quite nicely. I've used this system sucessfully on three different computers, and I can tell you that the noise reduction is dramatic. Oddly, all three of them stopped working within minutes due to unrelated problems.
Evil is the money of root.
The logical next step, then, is to evolve quieter blood!