Microphone buzzing with high CPU load

July 24, 2012 at 09:29:46
Specs: Windows 7
OK, before I get started on this, I have read many other posts / threads / forums on this problem, but none seem to be exactly the same as mine, or have a solution that worked for me.

So to the problem... well, the title says it all. The problem first made itself known when I tried streaming games using XSplit, and would hear a buzzing sound whenever I turned on a game, which immediately deterred me from streaming.

I am able to cut out this problem by simply muting the microphone to the XSplit software, however this obviously means that I'm unable to stream with voice... in addition to this, if I simply listen to the microphone in the Windows Sound program, I can hear it very clearly, being a bit quieter than my voice but still very audible. I have gone down many avenues with the aim of completely eradicating the problem. With the aid of reading other people's threads with the same problem, I have changed many components of my computer, including the GPU, the PSU and the sound card, to no avail. I have also tried other things such as trying other microphones, plugging the computer into the mains and surge protector / 4-way plugs, and even trying the computer in a completely different room of the house, and none of these have worked.

Recently (maybe within the last couple months) I realised that the sound is directly linked to the amount of load on the CPU, confirming this by going into the power settings and tweaking the "Minimum processor power" setting. With this in mind, I completely took the computer apart, including removing the motherboard from the case, and even the CPU from the motherboard, and cleaned everything from any possible dust before putting it all back together, to eliminate any chance of bad connections... and nope, this didn't fix a thing, other than making the computer run slightly cooler.

So I'm here because I've pretty much run out of ideas, and getting very frustrated because many streamers are able to stream with nice, clear voice audio, whereas I am unable to do so, thanks to this problem.

Computer Specs:

OS: Windows 7 Professional x64
Motherboard: ASUS P6X58D-E
CPU: Intel Core i7 950 LGA1366 + Thermalright custom cooler
GPU: ASUS Nvidia GTX570 Direct CU II
PSU: Corsair TX750 v2
Soundcard: ASUS Xonar DX
RAM: Corsair Dominator 3x2GB
Case: Antec 900

Other previous components with this problem:

Motherboard: P5N32-E SLi
CPU: Intel Core2Duo E6600 + Coolermaster custom cooler
GPU: XFX GeForce 275
PSU: X-Clio 850W
Soundcard: Creative X-Fi Fatal1ty XtremeGamer
Soundcard: Realtek OnBoard (both with this motherboard and my current motherboard)

As you can see, I've changed pretty much every part of my computer that would cause this problem, including different mics, headsets, and speaker systems. If anyone has any ideas of how I could possibly rectify this problem, it would be highly appreciated. Thanks.

See More: Microphone buzzing with high CPU load

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July 24, 2012 at 10:29:31
Try a USB headset or microphone. These use their own ADC, so electrically noisy computer components won't color the audio.

mATX Beast | LGA2011 i7-3930K @ 4.2GHz | 16GB quad-channel DDR-1866 | GTX 670
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July 24, 2012 at 12:44:32
OK cool, I'll look around for a USB headset, and report back on my results. Thanks.

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July 26, 2012 at 10:34:25
OK, well I got a USB headset and tried it on my machine, but it didn't solve the problem at all. However using it with the standard jacks seemed to quieten the processing noise quite substantially, and I believe this is because the new headset doesn't have it's own amp. Like I said, it didn't solve it completely, but it will have to do for now.

Either way, thank you very much for the tip. I ended up getting a pretty cool headset anyway =]

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