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Active Noise Cancellation Device

Discussion in 'Electronic Repair' started by James Hill, Nov 16, 2004.

  1. James Hill

    James Hill Guest

    Hello

    I'm after someone who can make an "Active Noise Cancellation Device".

    If you're that someone and would like some extra cash please contact
    me at .

    Thanks
    James
     
  2. Jerry G.

    Jerry G. Guest

    Seimens is supposed to have these. The good ones are fairly expensive,
    and they are all very limited in performance. Noise is very complex, and
    all the situations are very random.

    We would not even dare to take on such a project at our company, because
    of the wide parameters, and customer satisfaction factor.

    --

    Jerry G.
    ======

    Hello

    I'm after someone who can make an "Active Noise Cancellation Device".

    If you're that someone and would like some extra cash please contact
    me at .

    Thanks
    James
     
  3. CJT

    CJT Guest

    Wouldn't it be cheaper to buy a pair of off-the-shelf noise canceling
    headphones?
     
  4. exxos

    exxos Guest


    Move house, its probably for the best ;-)

    Chris
     
  5. CWatters

    CWatters Guest

    I heard it's next to impossible to get it to work well anywhere other than
    in a headphone set up. Even then I heard there are problem if the acoustics
    of the headphones aren't just right.
     
  6. Mistress

    Mistress Guest

    I had such high hopes when I saw ANC demonstrated with a wood chipper
    several years ago. I thought this technology was "right around the corner."

    My fondest dream -- I want one inside my PC case. The fan noise is making
    me crazy, hour-after-hour, day-after-day.
     
  7. Gerard Bok

    Gerard Bok Guest

    To solve that 'problem' you don't need ANC.
    Buy yourself a remote KVM unit and put your PC in a place where
    you cannot hear it.
     
  8. NSM

    NSM Guest

    | I had such high hopes when I saw ANC demonstrated with a wood chipper
    | several years ago. I thought this technology was "right around the
    corner."
    |
    | My fondest dream -- I want one inside my PC case. The fan noise is making
    | me crazy, hour-after-hour, day-after-day.

    Replace the fan. There are some which can vary the speed by temperature. And
    watch for the fan on the processor (if you have one). Some of those can
    sound like a locomotive wreck.

    N
     
  9. CJT

    CJT Guest

    Power consumption, the associated heat, and hence the associated fan
    noise are three aspects of the same problem which is the bane of PCs.

    I've switched much of my computing to Sun Rays to cope.
     
  10. BartMan

    BartMan Guest

    James Hill napisał(a):
    It's an advertisement, can't you see?! It's a spam!
    It's a trick with this noise cancellation...

    BartMan
     
  11. t.hoehler

    t.hoehler Guest

    Hmmmm, check out the Fenton Silencer, you'll find it in Arthur C. Clark's
    "Tales From The White Hart"
    Ol' Fenton still had some glitches in it, but the story dates back to the
    forties!
    Regards,
    Tom
     

  12. Try the Bose noise-cancellation headphones. They are fantastic. I
    tried them on a USA to Frankfurt flight a couple of years ago, and
    there was absolutely no plane noise when they were turned on, only the
    music I was listening to. If you turned the music volume all the way
    down, there was amazing silence until you took the headphones off.
    Expensive, but an engineering marvel.

    H. R. (Bob) Hofmann
     
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