[Ardour-Users] Puzzling line level interference

Thomas G. Willis tom.willis at gmail.com
Sat Jul 28 09:58:23 PDT 2007


On 7/28/07, Thomas G. Willis <tom.willis at gmail.com> wrote:
>
>
>
> On 7/28/07, Sampo Savolainen <v2 at iki.fi> wrote:
> >
> > On Sat, 2007-07-28 at 09:50 -0400, Thomas G. Willis wrote:
> >
> > > I just tried putting one of those 2 prong adapters on the end of my
> > > power supply and plugging it in, and that seems to have fixed the
> > > problem. I'm guessing this isn't ideal though I don't know exactly
> > > why. At least I can put it in temporarily when I want to record.
> >
> >
> > That only proves that it's a ground loop issue. Running a PSU which is
> > meant to be grounded can be really hazardous. You need to rewire your
> > setup so every device in your audio setup (and everything connected to
> > them) are using the same ground source.
> >
> > That, or separate the ground of the /signal/ not the safety ground or
> > use isolator transformers.
>
>
>
> Thanks , I'm reading up on stuff now. I'm wondering if I can just pick up
> something at circuit city like
>
>
> http://www.amazon.com/gp/product/B000JFGS1G/ref=olp_product_details/102-0871853-3346555?ie=UTF8&seller=
>
> $15 bucks seems like it would be worth a shot.
>

All Hail the ground loop isolator found in car audio departments. :P It's
now quiet enough for scratch tracks . Thanks again for all your help.
-- 
Thomas G. Willis
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