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    Did Dell Fix The Audio Problem?

    Discussion in 'Dell' started by Grimhound, Oct 21, 2007.

  1. Grimhound

    Grimhound Notebook Consultant

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    Was curious if Dell fixed the audio issue with their laptops yet.

    By that I mean the whole fiasco involving the audio jacks and motherboard feedback and such.
     
  2. AlCabone

    AlCabone Notebook Enthusiast

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    I can't hear any interference on my vostro 1400
     
  3. Waeggles

    Waeggles Notebook Consultant

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    Same here, have no issues with sound on my M1330.
     
  4. Meetloaf13

    Meetloaf13 fear the MONKEY!!!

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    I can hear it on mine, but only when nothing is playing on my headphones.

    Vostro 1500
     
  5. star882

    star882 Notebook Evangelist

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    It's a setting issue, and here's how to fix it:

    1. Open KMix.
    2. Go to the "Switches" tab and make sure "Analog Loopback" is NOT on. Note that the noise disappears as soon as that option is disabled.
    3. Play music and enjoy the HD audio.

    Why that works is because the audio chipset has an option to pass through audio from the optical drive. However, the optical drive does not have analog output (or it is disabled in firmware) so the analog audio lines are just left "floating", which means that nearby logic can couple noise very effectively. By using KMix to disable this feature, no more noise!

    You'll also notice "Line In as Output". That does exactly what it says - you can use the line in connector as a second headphone output! Besides that option, you will also have to go to the "Output" tab and turn up and unmute the "Surround" slider. Unfortunately, it was never designed for a headphone output so quality is bad, but it's better than nothing!
     
  6. Wellsley

    Wellsley Notebook Enthusiast

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    Dumb question, but isn't KMix something for Linux? It sounds like it'd be nice to have if it fixes the problem but I can't find it for XP anywhere...

    On another note, yeah, I hear it, and it drove me nuts. Until I decided to go and get an inline volume control for my headphones. Now it sounds fine. Other than that little hassle, I love my 1520. I call her Vera.
     
  7. deadsimple

    deadsimple Notebook Consultant

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    Posting a Linux-only solution in a Windows-dominated forum doesn't really impress anyone :)

    (Disclaimer: I have Linux dual-booted, but acknowledge that 99% of desktop users don't run it)
     
  8. lambchops468

    lambchops468 Notebook Evangelist

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    you mean 91%

    >.< -- it's gonna help me
     
  9. Grimhound

    Grimhound Notebook Consultant

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    So.. which models are suffering from the quiver through the audio jack?
     
  10. spetsacdc

    spetsacdc Notebook Enthusiast

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    I know the vostro 1500 is
     
  11. jb1007

    jb1007 Full Customization

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    I have the 1500.. on my cheap ear buds I can hear it when no sound is playing, when I use my high quality headphones there's no interference. There's some good solutions people have used on this forum if you do a search.
     
  12. deadsimple

    deadsimple Notebook Consultant

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    I've got $500 headphones, and the interference is still insane.

    As soon as the AC adapter is unplugged, all gone. Not really a solution as you can't listen to much music on battery :)
     
  13. omo

    omo Notebook Enthusiast

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    This is the ground loop hum(also called 60 cycle or 50 cycle hum). A ground loop isolator may help. In some cases, a better shielded ac adapter solves the problem. It comes from the electrical wiring