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Microphone humming noise, help me figure out how to permanently fix this.

post #1 of 4
Thread Starter 
Hello!

First of all, I hope I posted this in the right section, if not then I apologize. Down to the point, I'm having an issue with my microphone(s). I'm getting an electric humming noise in my microphone. From what I've read, this is some kind of an issue with the computer not being grounded accordingly. All the articles, posts and threads I've found in the internet have been laptop threads having this issue and how to fix it for laptops, which unfortunately don't work for desktop computers.

I'm currently running my computer shelf style, meaning it's not in a case. Now the issue was back when I had a case in use and it still persists now. I have installed a front mic/speaker extension. The front mic/speaker thingy is covered in a metal box. So, I need to figure out how to fix this issue. I can make the humming noise go away by touching or hooking myself up to the front mic/speaker box. Direct touch or wrapping a copper wire around my finger/wrist and connecting it to the box. It works but it's obviously a temporary solution since it restricts my right hand from moving too much.

So basically yeah, anyone have ideas? I've tried with the copper wire, I use to connect myself to the "comp", to ground the system to basically anything nearby but nothing has worked. I've tried changing the PSU cable between the PSU and wall to different ones and tried different sockets also but nothing has helped so far.

Thanks in advance for the help, any ideas are welcome since this is really a problem for my streaming, no one wants to listen to mic humming. frown.gif
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post #2 of 4
I dont know if its similar or not but I had humming in my speakers and switched to a power bar with a emi/rfi filter in it and it cleared up my humming
Alienware x51 r3
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Alienware x51 r3
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post #3 of 4
Thread Starter 
Okay, after further testing on the issue I have found out what is causing it. It's the headset itself. The humming noise is not present when I hold the headset in my hand, without having anything in between the speakers. If I put my hand over the left side earpiece, the humming noise will be present but not if I put my hand on the right one. I believe the speaker is emitting EMI or similar which is then causing the humming noise when it gets deflected by my hand or head back to the earpiece. I think, if I'm not wrong, to fix this I need to open up my headset and see are the cables properly protected, I'm suspecting not...

Quite an interesting issue this turned out to be.. I was sure it's caused from having a ground loop but seems that is not the issue.
Yuki
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Yuki
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post #4 of 4
Thread Starter 
Buuuuump from the depths of the forum!

Okay, if the mods decide this is "necroing" then truly sorry about it but decided I'd bump this thread instead of restarting it.

So, I'm still having this same issue going on. What I posted in my last post, turned out to be wrong. I have lately been trying to solve it once again since my temporary solution doesn't cut it. I now have tried with 5 different microphones in total. Out of those 5, 3 have been headsets, 1 table microphone and 1 handheld microphone. From what I have found out, there is no humming noise when I or anyone else isn't touching the microphone, the cable of it or even hold your hand near it. So it has something to do most likely with electromagnetic field emitted by a person, but I could be wrong since I have tried if any kind of electronic application in the house would reproduce the problem and have failed.

Note: This is the same humming issue you find with many laptops when the power cable is connected to the laptop. Unfortunately, I haven't been successful trying to get it fixed trough the same methods which work for laptops. Just wanted to note it since some people might be having trouble understanding what I mean by humming. tongue.gif

So, still the only solution I have found is that I ground myself to the computer chassis (in this case my front mic connection box). Another solution would be a microphone on a stand so I wouldn't be touching the microphone but unfortunately, this is a rather expensive solution to me since if I get a new microphone, I'm gonna be getting a good one and not a cheap-o solution. :/

I really need to figure this out and so I'm calling out to anyone who would be able to figure out this problem since it is really hindering both my video recordings and live streaming.
Edited by DJEndet - 12/20/11 at 7:34am
Yuki
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Hikari
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CPUMotherboardGraphicsRAM
AMD FX-8300 @ 4.2 Ghz Asus 970 Pro Gaming Aura XFX XXX RX 480 RS 4x4gb Kingston 1600mhz DDR3 
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CoolerMaster Hyper 212x Windows 10 Silverstone Raven 3 
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Yuki
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Hikari
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CPUMotherboardGraphicsRAM
AMD FX-8300 @ 4.2 Ghz Asus 970 Pro Gaming Aura XFX XXX RX 480 RS 4x4gb Kingston 1600mhz DDR3 
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CoolerMaster Hyper 212x Windows 10 Silverstone Raven 3 
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