Weird noise from speakers?

CarlieGreen21

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Apr 19, 2015
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Hello! Today I bought speakers for my computer and there is weird noise (buzzing and other sounds) coming from them, especially when i move the mouse.
The problem is not in the speakers, because I used them with my laptop and they worked fine. When i plug in earphones, the same things happens.

Is the problem from my computer?

Is it possible that my monitor is causing this? It generally has a problem and is old, it only works as a 4:3 monitor, although it's 16:9 and there are two black lines on the sides.

Update: its not the monitor, because i turned it off and the sound remained.

What should I do?? :(
 

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