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    Hissing sound from headphones

    Discussion in 'Lenovo' started by DR34M, Sep 6, 2012.

  1. DR34M

    DR34M Notebook Consultant

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    Hey guys, I've been listening to some lectures and I've noticed I get this annoying hissing sound from my headphones. As I listen through the recording, I pause it sometimes to write down some notes, and I hear the hissing. So I played the recording again at low volume to see if the hissing is still there and it is. When I press the mute button on the keyboard then the hissing goes away. Anyone have a solution for this?
     
    DR34M, Sep 6, 2012
    #1
  2. Coin3

    Coin3 Notebook Guru

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    It's the same for me, and I'm guessing all of us. If Lenovo knows about this, I wish they would fix it. :/
     
    Coin3, Sep 6, 2012
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  3. ThinkRob

    ThinkRob Notebook Deity

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    Sounds like normal amplified analog line noise to me. My bet is that when you press mute that the driver tells the HDA chipset to kill power to the port.
     
    ThinkRob, Sep 6, 2012
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  4. DR34M

    DR34M Notebook Consultant

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    ah man that sucks. it gets really annoying when i pause through lectures to take notes and hear that sound. maybe if i buy better headphones it'll disappear? i have $10 sentry earbuds.
     
    DR34M, Sep 7, 2012
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  5. Colonel O'Neill

    Colonel O'Neill Notebook Deity

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    Might be static buildup. I can make it happen on demand and make it go away by touching the rollcage through the [empty] Ultrabay to ground it.
     
    Colonel O'Neill, Sep 7, 2012
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  6. ThinkRob

    ThinkRob Notebook Deity

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    Possibly, but it's likely just line noise from the card's lines themselves.

    Welcome to the fun world of analog audio. Shielding is hard, and cheap DACs suck. :/
     
    ThinkRob, Sep 7, 2012
    #6