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strange microphone hum...?


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#1
dom one

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for some reason my headset microphone is humming.. but when it tocuh the case of the computer the humming noise stops is there a grounding problem and where is it i searched all over and found nothing?
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#2
audioboy

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yep, that sounds like a ground problem. is the mic plugged all the way in? was the headset thrown or smashed recently? (accidentally, of course :tazz: )
those headsets usually work all the way or not at all.
hmmm...you dont have the comp on a ground lifter for its power, I assume...
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#3
dom one

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i know the headset is fine it is something with my computer... are computers grounded? cause im totaly lost with trying to figure it out and no one knows what is could be.

Edited by dom one, 23 April 2005 - 09:10 AM.

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#4
dom one

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i dont think anyone will ever figure this out..... ive asked so many people.. everyone is either brushing it off or doesnt know.
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#5
austin_o

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Computers are grounded by the standard three prong plug that you plug into your electrical outlet. That ground is only as good as the "ground" of that particular outlet. If it was wired according to modern elecrrical code it should be good. HOWEVER, many older homes do not meet current electrical standards. My own home was built in the 1940's. Some of the wiring has been updated, but some has not. You could try another outlet, or try running a separate ground wire from the chassis of your computer to a good earth ground, like a cold water pipe (metal, not plastic!). If you have a volt meter, you may want to check for voltage on the chassis to a good ground.

Did this just start happening or have you always had this problem. If it just started, I would suspect the headset is the cause, not the computer ground. :tazz:
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#6
dom one

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the house is old and i think it may be the outlets hm.. thanx.
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#7
audioboy

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First thing is, did the problem just start with the headset? as in, did it used to work on that PC? if so, then its likely the ground connection for the headset mic is broken.

answer that, and we can narrow this down.
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