Subject: Re: [linux-audio-user] hum from laptop soundcard
From: juto aviten (periclite_AT_free.fr)
Date: Mon Apr 21 2003 - 13:31:37 EEST
derek holzer wrote:
> yes,
>
> same here. it is very common for laptops to have terrible ground loop
> problems when connected to other equipment, which is what you are
> hearing. the two solutions i can think of:
>
> a ) use a DI box between your laptop audio output and everything else
> to lift the signal off ground--an expensive option if you are just
> using the headphone out, of course!
>
> or
> b ) find another way to remove your laptop from ground. using
> batteries is one, but then your processor slips into a lower mode and
> you lose some of that computing power you paid for. a friend suggested
> using a powerstrip that either has no ground or has had its ground
> removed. haven't tried it yet, but that sounds like the best bet.
> better than hacking the grounds off your AC adaptor, at least... :-)
Thanks Derek,
i will try some of this solutions
best
juto
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