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Software Noise Cancellation?

Posted by Cliff on from the watch-out-for-the-feedback dept.

DangerTenor asks: "As I flew around the world, lusting after my coworker's $300 BOSE Quiet Comfort Noise-cancelling headphones, I looked down at my laptop computer and noticed the built-in microphone. Has anyone written or considered writing software to run noise-cancellation based on the built-in mic?"

4 of 38 comments (clear)

  1. Delay by Anonymous Coward · · Score: 0, Troll

    Delay would be too much. The noise 'cancellation' would be out of phase.

    Unlike this FIRST POST. IN PHASE!

  2. Are fucking serious? by Profane+Motherfucker · · Score: 0, Troll

    Good god man. I'm a fucking English major, and the answer seems clear as fucking day to me.

    Just how the FUCK is the sound going to get into the microphone, be processed, leave the speakers, and enter your ears FASTER than the noisy shit you want to cancel out?

    Does the phrase "The shortest distance between two points is a straight fucking line" ring a bell? While we're out shopping for Impossible to Make Shit, let me know if you locate some "Noise Friction" gel that can be applied to one's hair, reducing the speed of sound.

    I'm still fucking floored. Are you sure you weren't used as the model for the retarded boss sloth in Dilbert?

  3. i got it by pizza_milkshake · · Score: 1, Troll

    i always just turn the volume down when i want the noise cancel. *nyack nyack*

  4. Here's cheap digital noise cancellation that works by NewtonsLaw · · Score: 0, Troll

    I have a really effective digital noise reduction system already attached to my body (in fact I even have three spare sets).

    It works like this...

    Raise both hands to the side of your head, so that they're level with your ears with the palms facing inwards.

    Now bend your index fingers (digits) downwards at the second joint so they're pointed towards your head.

    Move your hands (and the attached index fingers) towards each other (with your head inbetween) so that the said fingers dock with your ear-holes.

    Press a little harder and -- voila -- the noise is dramatically reduced.

    In the event that a failure of some kind (amputation, congenital defect) leaves you without the full complement of index fingers, the middle fingers, ring fingers or even little fingers can be substituted.

    Gosh -- is this a "method"? I must rush off to the patent office right away! :-