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Microphone makes low pitched rumble on receiving end

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3 replies to this topic

#1 staticmaneuver


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Posted 24 October 2014 - 08:56 PM

Whenever I use a microphone to record or talk on skype it makes a low pitched rumble sound.

This sound:

I've done everything I can think of to fix it, and I'm at a loss.


Things to note:
It happens with both USB and audio jack mics. (Sentey SoniqBoom and Logitech G230)
I reformatted. It still happens.
The mics don't do this on other computers.
I've taken the entire computer apart and cleaned it out and it still does it.
I moved the computer to a different location thinking maybe it was some kind of interferrence and it still does it.


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#2 dicke



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Posted 01 November 2014 - 06:09 PM


The only step I see missing at this point is to do a control panel uninstall of the drivers, reboot, and go to the audio card site and download the latest drivers. Then after installing them let us know the results




Edited by dicke, 01 November 2014 - 06:09 PM.

Stay well and surf safe [stay protected]

Dick E

#3 Chris Cosgrove

Chris Cosgrove

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Posted 01 November 2014 - 07:10 PM

That sound is classic 'motorboating' which is a form of feedback interference often but not only found in audio circuits. Here is a brief article on the subject -




If you google 'motorboating interference' you will find any number of articles referenced. Since it is caused by feedback getting into the audio circuits and electrolytic capacitors are widely used to filter out this sort of effect it might be worth your while having a look around the motherboard and sound card (if you have one) for bulged capacitors.


Chris Cosgrove

#4 jhayz


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Posted 01 November 2014 - 08:29 PM

Might wanna check the External Mic Advanced Properties also just in case.


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