Re: Terrible mic ground noise

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Le 01-04-2013 00:59, Len Ovens a écrit :

Is this the way the whole house is wired? (or garage or whatever) This may
very well be some of your problem.

Fortunately, no. It is only an extra wall the previous owner has made in the basement.

It would seem that your whole setup is
floating. I would feel comfortable fixing the wiring to make sure I had proper grounding even if it just meant running one wire for that purpose.

The setup is now connected via a 3-prong extension to an outlet that is grounded. No More Ground Noise. This is so nice.

You are getting sound from your mic... therefore it must be a dynamic mic. It is quite possible that whatever I looked up on m-audio's website is not what you have. So it is not worth worrying about getting phantom power to
it if it is working without it.

I've gotten the specs from:

http://www.m-audio.com/images/global/manuals/060817_PULSAR_UG_EN01.pdf

This is the mic I have. It says Pulsar on it. Not Pulsar 2. Bought it in 2006 or so. Looks same as in the specs. Same accessories, same everything.

The specs specifies a 48V phantom power. But from your comment and Fons', it seems that the phantom is actually the music recorded by it ! And this is not from a guitar amplifier. I record acoustic guitar and bass. Can have a magnet effect of some sort in there.

That would be the way, but if you are getting sound at all, your mic
either has power already or doesn't need it. If it was indeed a phantom powered mic you would get no audio from it at all, so I think you have a
dynamic mic of sorts.

So now this mystery remains. I was by the music shop today but they were closed. With the phantom and all, I'm not sure I'd get a phantom power supply on April Fools anyways.

But the Pulsar mic works. Just recorded again some other things earlier today.

Is it possible to probe the microphone's pins and by the impedance or something find out if it is made for having a phantom power supply ? I have a meter that I can put to good use.


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