Slashdot Mirror

← Back to Stories (view on slashdot.org)

Controlling tha Noise?

Posted by Cliff on from the s/Controlling/Bring/ dept.

Quite a few submitters have asked "How do you make a quiet PC". Well, rather than tackle it from the PC standpoint, how about devices that can quiet a whole environment? Along these lines, 16977 asks: "I've been considering building an active noise control system for an area about the size of a closet. ANC today doesn't work quite as well as it did in Silence, Please (works best for low frequencies, only covers small areas, etc.), but it is still a fascinating technology. I'm wondering if anyone out there has done similar projects with either the hardware or controlling software of ANC, and what information they have to share." And since I have your attention on this subject, sammy.lost-angel.com asks: "I would like to ask the slashdot community about their recommendations for noise-cancelling headphones. Traveling in planes is very noisy, and with MP3 players becoming more and more common, I would like to hear some experiences with various different noise cancelling headphones paired up with MP3 players. How well do they work in general? What is the best and most cost-effective headphones available?"

4 of 60 comments (clear)

  1. I don't understand by HughsOnFirst · · Score: 1, Insightful

    Could you clarify whether you are trying to make the inside of the "closet" quiet, or trying to prevent noise
    from escaping the closet. They are two very different problems. The solution for preventing noise from
    escaping the closet is so straight forward that I can't imagine why you'd need to ask here. ( look into
    recording booth construction ). Why you would want to solve the second problem makes no sense at all.

  2. Worse and worse by Anonymous Coward · · Score: 1, Insightful

    Controlling tha Noise

    Did you mean 'the'?

    A three letter word in the title is spelt incorrectly ... if so-called editors let this past then there is no hope left for them.

    (EOE!)

  3. I can see it now by isorox · · Score: 2, Insightful

    You kick back with your noise cancelling headphones on with your eyes closed, or maybe reading a book. In the next Isle a guy starts setting fire to his shoes, while just infront of you 5 blokes get a couple of knives out.

    Remember to keep some awareness of what is going on around you - turbulence warning etc.

  4. thousands of styrofoam cones by Laplace · · Score: 2, Insightful

    Try this. Line the room with hundreds (thousands?) of styrofoam cones, so that the walls look something like this:
    >
    >
    >
    >
    (that is just one wall, stupid lameness filter)
    The cones will absorb all sorts of wavelenths, and make the room really quiet. I've been in rooms like this before, and there is almost zero reverb no matter how loudly you yell or how much noise you make.

    --
    The middle mind speaks!