 Laptop earthing problem |
den_bert
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Hey guys,
Im experiencing a constant huuuuuum sound when my monitors (yahama HS50M) are connected to my laptop. It stops when I disconnect the power adapter of my laptop, so im pretty sure its an earthing problem. I tough that an external audio interface could fix this problem but I tried with an E-Mu 0202 USB and I still had that anoying huuuuum sound.
Anyone had the same kind of problems? or a solution?
Any help is greatly appreciated.
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13-12-2009 10:44 |
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thechronic 
admin
Registration Date: 01-11-2002
Posts: 5,293
Helpfulness rating:
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You probably have an earth loop. This is caused by interconnecting pieces of equipment that do not share a common ground.
You're probably plugging your laptop in a power socket that is on another circuit. Put all your audio equipment + the computer and everything that is connected to it on the same wall socket.
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13-12-2009 20:12 |
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den_bert
unregistered
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Thx.
I managed to reduce the volume of the huuum. Its still there but its stays at a constant low volume now. First I tried thechronic's sollution but it didnt change anything to the hum. Then I tried several transformers and wires but that didnt had any effect. The ground lift switch on my usb audio interface didnt fix it either.
I became a little desperate at that time 
, and I connected my laptops adapter to another wall socket 20 meters and 2 rooms further from where my monitors are plugged in, and that removed a big part of the hum. But I think will buy a device like sentinel proposed when I have the money, It seems like a better solution :p.
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14-12-2009 17:23 |
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