Re: [LAU] Terrible mic ground noise

Le 31-03-2013 11:02, Len Ovens a écrit :

> Where does the mic get its power from? The M-Audio pulsar is a
> phantom
> powered mic, the passive DI does not supply power and also would
> block
> power from going through. The 1010lt does not mention sending phantom
> power... does the mic have a battery? (the user guide says it
> requires
> phantom power, so no battery)

> From what you have said above and from looking up the HW you are
> using,
> you should not be getting any audio through the mic at all. So if you
> turn
> the gain up high enough you might get hum.

That must be the problem then. The higher the volume, the higher the
'ground' noise.

>> The electric plug has only two prongs. I though of getting some

> What electric plug?

The one to which the computer stuff is connected. The house plug.
Which is not a plug, but a box. That one does not have a ground wire as
others do. The two-AC plastic socket unit has no ground wire.

> However, assuming you have just described your setup incorrectly...
> and
> there is a phantom power box and not a DI.

Thanks for the information ! Indeed the problem now is that the Pulsar
has no power. I shoudl start there. I've been using it for a long time
like that ! ;-)) (or should it be: :-(() Was having fun though making
music, but the noise was annoying.

Obviously I know nothing about those phantom power units. Which one
would you recommend ? Will it simply be in the XLR path: mic -> power
-> 1010LT ?

Also, now the passive DI box can be put to some other use. Would it
accept the 1/4" output of a small VOX guitar amplifier ? What would be
the difference in sound characteristics between using a DI box to the
1010LT 2nd XLR input vs. not using one and connecting the same VOX
output to a regular 10101LT input ?

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Received on Sun Mar 31 20:15:03 2013