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Ninja noise skills needed for sanity

  • 19-04-2010 12:08am
    #1
    FewFew
    Registered Users, Registered Users 2 Posts: 12,746 ✭✭✭✭


    G'day gents,

    I think this is the suitable place to post this, due to your knowledge on all things sound related.

    I'm getting a hum. A sharp G hum. It's coming off the output of my electro-acoustic guitar. Tonight I unscrewed everything and had a root about, but there are no loose wires etc, everything is bound with rubber etc.
    So, I've known sound engineers to diagnose grounding issues when there's a constant E noise (I think?) so, just wondering does anybody know what this G noise might be?

    When the guitar works it's really beautiful DIed, and it's irritating me because sometimes it's grand, other times it's not.

    I posted this a while back on the instrument forum and had no joy, so I'm hoping you engineer types might have a solution?

    Any help greatly appreciated... it's like my baby is currently crippled or something.


Comments

  • #2
    Mataguri
    Registered Users, Registered Users 2 Posts: 247 ✭✭Mataguri


    Any clips?


  • #3
    studiorat
    Closed Accounts Posts: 6,408 ✭✭✭studiorat


    A G or A-flat would be around the 50Hz of mains power here.

    Which would suggest an earthing issue.


  • #4
    FewFew
    Registered Users, Registered Users 2 Posts: 12,746 ✭✭✭✭FewFew


    Mataguri wrote: »
    Any clips?

    None I'm afraid, just gauging it from a Boss TU-2. It produces a hum rather than a buzz or crackle.
    studiorat wrote: »
    A G or A-flat would be around the 50Hz of mains power here.

    Which would suggest an earthing issue.

    Ah so it is an earthing issue? Damn. Guess I'm off for more research.


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