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Desktop external speakers buzzing


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#1 princecanthony

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Posted 11 November 2017 - 06:54 PM

My desktop computer is causing my external speakers to buzz. I tried plugging the speakers into other sources and they are all fine. The buzzing is even persistent through HDMI audio. I experimented with plugging the external speaker into the 3.5mm recording port and it buzzed as well. Please help me find a solution!!



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#2 Sagedog

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Posted 12 November 2017 - 05:47 AM

Have you tried re-routing your cables? It sounds like induced hum from RF sources.



#3 princecanthony

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Posted 12 November 2017 - 06:07 AM

Thank you for your reply. There are no signal producing devices around the speaker wires nor computer. I also unplugged all Wifi and USB cables.



#4 xrobwx

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Posted 12 November 2017 - 10:14 AM

You can get an RF signal from anything with an electric current. Usually an electrical component going bad like a fan motor can give off "extra" signals. It could be the solder joint of the 3.5mm jack is loose and causing extra electrical resistance which can cause a "hum". Shielding in cable is usually sufficient to block this but when something changes and the RF exceeds the shielding threshold, then you get the hum. 

It could be something as simple as dust binding on a fan motor. 


Edited by xrobwx, 12 November 2017 - 10:21 AM.





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