[lug] audio interference question

[Zan Lynx]

On Fri, 2009-01-30 at 05:05 -0700, Matt James wrote:
>  In my experience, computer audio (not just laptop) has always been
> quite noisy from a recording standpoint because of all the EMI running
> around inside the box.  The only way I've got 100% away from this is
> to go to a USB or Firewire audio I/O.  Now, I've always done this on a
> Mac or a Windows PC so I'm not sure about linux compatibility, but you
> might want to consider something like this:

But since he has it working without noise when it is running from
battery, it probably isn't EMI from the laptop causing the problem.

I think I'd have to agree with Stephen about a ground loop being the
cause.
-- 
Zan Lynx <zlynx at acm.org>
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