On Fri, Jun 05, 2015 at 12:30:16PM -0500, Michael Hennebry wrote:
> On Fri, 5 Jun 2015, Frank Cox wrote:
>
> >On Fri, 5 Jun 2015 12:05:43 -0500 (CDT)
> >Michael Hennebry wrote:
> >
> >>whether a microphone will introduce humming?
> >
> >Is it a 60 cycle hum? If so, it's probably induced by poor grounding.
>
> I suspect so.
> Is that something I can fix?
that depends on where the grounding problem is...
I dont' remember if this is a desktop/deskside machine, or a laptop...
if it's a laptop, and if the power cord is a polarized 3-prong plug,
I don't think there's much to be done about it UNLESS the outlet you're
using is wired wrong, or there's a more widespread grounding/wiring
issue in your building.
if it's a desktop, I'll assume it's already a 3-prong polarized plug
(unless someone has used a 2-3 prong adaptor, or the building is
mis-wired.
All the above kind of assumes a US-like outlet. I don't recall where
the OP resides/works, so that may be all wrong.
You can get cheap devices that plug into a 3-prong outlet and have little
LED lights that indicate whether the wiring is correct, as regards ground
and neutral, or not.
Also, it's possible that you've got a cheap headset/mic combo that does
not have the shielded audio cable wired correctly. It's also possible
that it's a cheap-a** rig that doesn't even use shielded cable from the
plug to the mic/phones.
I've got one such headset here that injects hum into the microphone feed
on either my desktop or my netbook. however, when using the netbook, if
I disconnect the AC power, the hum goes away. Go figure. Reversing the
(2-prong) plug in the outlet doesn't make any difference in this case.
So, if I need to record something, I'll borrow my wife's USB headset
which, as of last usage, worked fine.
--
---- Fred Smith -- fredex@xxxxxxxxxxxxxxxxxxxxxx -----------------------------
But God demonstrates his own love for us in this:
While we were still sinners,
Christ died for us.
------------------------------- Romans 5:8 (niv) ------------------------------
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