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Punch Card
Posts: 3
Registered: ‎01-07-2013
Location: Dallas, TX
Views: 1,135
Message 1 of 3

Yoga 13 External Speaker Hum

When I plug my Logitech external speakers into my Yoga, there is a constant humming noise coming from the speakers.  The hum doesn't change by altering the volume or even muting it.


 I did notice that the hum is only present if the yoga is plugged in/charging.  I tried plugging the speaker power cable and laptop power cable into separate wall outlets, but still no luck.


Any ideas how to solve this?

Retired Support Specialist
Posts: 1,241
Registered: ‎11-02-2011
Location: India
Views: 1,068
Message 2 of 3

Re: Yoga 13 External Speaker Hum









Welcome To Lenovo Community


We are really sorry to hear about the issue you are facing,  


Please try the following

First we need to check if the issue is a ground loop, it can be suppressed by powering the speakers & the computer directly on the same power supply with a multiple- outlet power strip.

If the laptop and the speakers are powered by the same power outlet, and you still get noise, with no device connected to another power outlet between the computer, the DJ Console Rmx and the speakers, then the issue is not a ground loop.

You can check it by plugging headphones in Place of speakers, if you get the same noise in the headphones, and if you get the same noise, it probably means that the computer power adaptor is noisy (transferring noise to the audio signal)  




Do give this a try and let us know  




Hope This Helps






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Punch Card
Posts: 3
Registered: ‎01-07-2013
Location: Dallas, TX
Views: 1,057
Message 3 of 3

Re: Yoga 13 External Speaker Hum

Hello and thank you for the response!  


I tried plugging the laptop and speaker into the same power strip, however the hum was still there.  Nothing else was plugged into that power strip or outlet.


I then tried plugging in headphones, but there was NO hum.


This is really bothering me and doesn't occur with my other HP laptop.



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