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Noise Cancelling in Software?

Posted by ryuzaki0 on from the how-well-would-that-work dept.

doc_verma wonders: "There are directions to build noise-cancelling devices in hardware, but what would it take to create noise cancelling in software? Since computers have a speaker-of-sorts and can possibly have a microphone, why not take the input from the mic, reverse-phase it via software, and output it through the speaker? A noise-cancelling feature would be great to run on servers in a rack. It would also be a great app to run on your laptop when you are on a plane."

3 of 84 comments (clear)

  1. why not... by croddy · · Score: 4, Funny

    why not take the input from the mic, reverse-phase it via software, and output it through the speaker? well, i suppose the howling, squealing feedback would make you forget about the server fans for a few seconds, but i suspect it would just end up giving you a bigger headache in the long run.

  2. Loud Noise by DavidLeeRoth · · Score: 5, Funny

    I dont know how to noise cancel, but I know how to create a ton! cat /dev/urandom > /dev/dsp :)

  3. Re:My child once talked for eight hours straight . by OneDeeTenTee · · Score: 5, Funny

    the only stores for thousands of miles in any direction sold only alcohol, Mormon cookbooks, and knives.

    Sounds like a bad day for the Mormons if you're hungry.

    --
    Stop the world; I need to get off.