8 Mar
2009
8 Mar
'09
4:27 p.m.
Hi all,
When using the M-Audio Pulsar mic I notice a rumble sound until I
touch the mic, in which case the rumble goes away. That sounds like a
'ground' problem of some sort. The mic is connected straight into a
M-Audio 1010 PCI card using one of the XLRs jacks. The 1010 card also
has M-Audio active speakers connected to it.
The computer plugs into an electrical extension to which monitors and
other devices are plugged. That extension goes to the wall plug and is
of the three prong type (North America). Now, it could be that the
house electrical outlet wiring is not right. Would that be the
problem ? Is there any other way to solve this ?
Gating the signal would hide the rumble when there's silence but
that's not a solution.
Thanks for any suggestions/hints/ideas.
Cheers.
8 Mar
8 Mar
4:31 p.m.
On 8 March 2009 at 15:27, lanas <lanas(a)securenet.net> wrote:
Hi all,
When using the M-Audio Pulsar mic I notice a rumble sound until I
touch the mic, in which case the rumble goes away. That sounds like a
'ground' problem of some sort. The mic is connected straight into a
M-Audio 1010 PCI card using one of the XLRs jacks. The 1010 card also
has M-Audio active speakers connected to it.
The computer plugs into an electrical extension to which monitors and
other devices are plugged. That extension goes to the wall plug and is
of the three prong type (North America). Now, it could be that the
house electrical outlet wiring is not right. Would that be the
problem ? Is there any other way to solve this ?
Gating the signal would hide the rumble when there's silence but
that's not a solution.
Thanks for any suggestions/hints/ideas.
Do you have the option of trying a different mic in order to isolate
where the problem might be coming from?
--
Kevin
6:58 p.m.
lanas wrote:
On Sun, 08 Mar 2009 12:31:07 -0700,
Kevin Cosgrove <kevinc(a)cosgroves.us> wrote :
There's always the possibility of defective hardware whenever you have
hardware involved. You'd be surprised the number of times my band has
found that the cable that worked just fine last week is the one that's
introducing a loud and lovely hum into the audio system this week ...
--
David
gnome(a)hawaii.rr.com
authenticity, honesty, community
Do you have the option of trying a different mic
in order to isolate
where the problem might be coming from?
Unfortunately, no. Does this mean that the problem could be the mic
itself ? 
8:04 p.m.
On Sun, Mar 08, 2009 at 05:47:12PM -0400, lanas wrote:
On Sun, 08 Mar 2009 12:31:07 -0700,
Kevin Cosgrove <kevinc(a)cosgroves.us> wrote :
What happens when you touch any other metal parts that
should be grounded, e.g. the connecter or your sound card,
the computer, etc. ?
Ciao,
--
FA
Laboratorio di Acustica ed Elettroacustica
Parma, Italia
Be quiet, Master Land; and you, Professor,
will you be so good as to listen to me ?
Do you have the option of trying a different mic
in order to isolate
where the problem might be coming from?
Unfortunately, no. Does this mean that the problem could be the mic
itself ?
9 Mar
9 Mar
9:15 p.m.
On Mon, 9 Mar 2009 00:02:37 +0100,
Fons Adriaensen <fons(a)kokkinizita.net> wrote :
What happens when you touch any other metal parts
that
should be grounded, e.g. the connecter or your sound card,
the computer, etc. ?
I'm now in the Twilight Zone. I think I'll hear Rod Serling
speaking anytime soon. Perhaps my lack of knowledge of things
electrical contributes to this. On the second mic input of the M-audio
1010LT card there's a direct box that's connected. For the problem
description I've removed it to be sure only the mic was causing the
noise. Now I've put the direct box back in. The weird thing is, if,
using the mic stand, I rest the end of the mic on the direct box
(itself on the desk) then the noise goes to a minimum. Still there,
but the least I've heard so far. The input to the direct box is the
pick up of an accoustic bass guitar. The direct box itself has a few
options, such as a ground lift, reverse polarity, -15dB pad. Apart
from the -15dB pad, the others does not seem to do much.
5702
days inactive
5703
days old
linux-audio-user@lists.linuxaudio.org
5 comments
4 participants
participants (4)
-
david -
Fons Adriaensen -
Kevin Cosgrove -
lanas