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Noise Canceling Headphone

Discussion in 'Electronics Homework Help' started by neophyte04, Jul 21, 2011.

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  1. neophyte04

    neophyte04

    6
    0
    Jul 21, 2011
    Good day to everyone :)
    im a newbie here
    and i just want to ask on how to
    make a Noise canceling Headphone
    that is not too expensive
    Im going to use it in my project

    My project is to make a a hearing test device
    that does not need an assistance of a specialist/doctor
    Based on my research, doctors used a sound proof room
    to avoid noise interference
    and my idea is to make a headphone that can eliminate noise

    I also want to ask if you know programs like MatLab
    that produces a sound with an accurate frequency
    that is not PC based and can be used without PC

    I dont know if i could use a micro controller :confused:
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,481
    2,830
    Jan 21, 2010
    some observations:

    1) sound can conduct through bone, so even if the headphones eliminate noise from reaching the ears, you can still hear through conduction.

    2) sinusoidal waveforms are probably the best because whilst you may be deaf at one frequency, you may be able to hear the overtones. Thus a square wave may be far more audible than a sine wave.
     
  3. neophyte04

    neophyte04

    6
    0
    Jul 21, 2011
    Thank you so much sir :)
    i'll consider your suggestions on my further studies

    God bless
     
  4. poor mystic

    poor mystic

    1,068
    31
    Apr 8, 2011
  5. neophyte04

    neophyte04

    6
    0
    Jul 21, 2011
    a big thanks sir :)
    i'll try to study the circuit and modify it if possible
    we are not allowed to just copy the circuit
     
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