Weird sound coming from my laptop
Results 1 to 5 of 5
  1. #1
    Tech Mentor Calum's Avatar
    Join Date
    Nov 2010
    Location
    Dublin, Ireland
    Posts
    130

    Default Weird sound coming from my laptop

    Right i had a crap behringer mixer and thought it was that. but iv upgraded to a xone 62 and im still getting the sound.

    the sound can be heard here http://www.djtechtools.com/forum/showthread.php?t=33514

    anyone got any suggestions?


    im running a vaio, 4ram 320 HD with traktor scratch pro 2.1.1
    and an audio 8.

  2. #2
    Tech Guru Flash101uk's Avatar
    Join Date
    Jan 2010
    Location
    Derby, UK
    Posts
    655

    Default

    Thats whats called a ground loop mate. Its digital feedback introduced by your laptop power supply.

    Theres a couple of ways of killing it that I know of.

    1. Get a ground loop isolator, they make them for cars for this exact reason. Theyre phono, so stick them on the output of the mixer going to your speakers.

    2. Lift the ground on your laptop power adaptor. To do this you need to isolate the ground pin on the plug. I'll assume your from england with the 3 prong plug. The top prong is ground.
    There are adaptors out there that isolate this from the socket. Its unadvisable though as it has a ground pin for a reason.

    3. setup a new fuse line for your speakers. If theyre plugged into a separate fuse line, they'll be isolated from the ground loop on your gear. Thus negating the noise. Most clubs have this.

    I recommend option 1, because its cheap, easy, and what I did.
    Ecler NUO 3.0, 2 1210mk2, midi fighter, Kontrol X1, Akai LPD8, Reloop RHP10's, TSP, Audio 8

    Howitzer on Soundcloud | Howitzer on Twitter | Howitzer on Facebook | Howitzer dnb blog

  3. #3
    Tech Guru zimfella's Avatar
    Join Date
    Aug 2009
    Location
    Brighton ,UK.
    Posts
    1,069

    Default

    i tried various things and could never really fix it just minimise it a bit. In the end i bought a new laptop. sorted.
    It's not the gear. It's how you use it.
    limitations are the source of creativity.
    If you don't practice you don't want it.

    http://soundcloud.com/zimfella

  4. #4
    Tech Mentor Calum's Avatar
    Join Date
    Nov 2010
    Location
    Dublin, Ireland
    Posts
    130

    Default

    thanks for getting back to me, im gonna try the ground loop isolater and see if that works. if not, looks like i need a new laptop..

  5. #5
    Tech Wizard Maxiboy's Avatar
    Join Date
    Feb 2010
    Posts
    33

    Default

    I found that mostl PC laptops do this, it's a ground loop caused by the batery charger, if you disconnect the battery charger the sound will stop. This happens probably because they were not designed to output to big sound systems. Macbook Pro laptops seem to not have this problem as they were designed to be used by musicians and multimedia operators and were built to eliminate ground loops and hum. Yes you can minimise it with various methods but get a Macbook Pro and the problems solved. Thats what I did.
    Cheers, Maxy.
    Maxiboy

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •