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whenever i have my laptop plugged into my mixer via the jack output with the charger in i get a horrible buzzing noise its driving me mad because i can only make music for about 2 hours then the battery runs out and i have to put the charger in does anyone know what i can do or buy to fix this

is it the laptop or the adapter, that is emitting the noise? What kind of laptop?

here's a solution but it's just temporary...you probably have some problems with bad grounding where you use your laptop...try putting some duct tape over the ground connectors in your wall socket or over the laptop's power cable and see if the buzz is gone...

be careful, though...

try pluging it into a different socket to your speakers. worked for me

Brisance wrote:is it the laptop or the adapter, that is emitting the noise? What kind of laptop?

im not to sure the sound is coming thru my speakers though its not just the laptop itself it a compaq HP

crutch wrote:try pluging it into a different socket to your speakers. worked for me

what socket would you suggest

try any other socket in your flat that has no other devices plugged in...

that makes sense actually my setup would be a fire safety officers nightmare

Search for ground loops Been a few threads relating to this on here in the last few weeks.

Macc wrote:Search for ground loops Been a few threads relating to this on here in the last few weeks.

:script:
had same issue with my lappy back when.
cheap fix was a 3 prong to 2 prong converter for when it was plugged in recording mixes etc.

Deadly Habit wrote:

Macc wrote:Search for ground loops Been a few threads relating to this on here in the last few weeks.

:script:
had same issue with my lappy back when.
cheap fix was a 3 prong to 2 prong converter for when it was plugged in recording mixes etc.

same thing I suggested

only my method is more risky

sleepgolfer wrote:

Deadly Habit wrote:

Macc wrote:Search for ground loops Been a few threads relating to this on here in the last few weeks.

:script:
had same issue with my lappy back when.
cheap fix was a 3 prong to 2 prong converter for when it was plugged in recording mixes etc.

same thing I suggested

only my method is more risky

yea well i had a few just sitting around in my electronics box-o-cables and crap

you need a

"ground loop isolator"

that's the exact item you need so google it

if you live in the US, radioshack has one (dont let them get involved in trying to solve your problem though).

http://www.radioshack.com/product/index ... Id=2062214

send it through the out on your laptop with all the necessary cable fittings, simple as that

there are many similar parts available online, so it should be easy to get anywhere in the world. anything with the same name that looks like the photo in the above link.

good luck

sleepgolfer wrote:try any other socket in your flat that has no other devices plugged in...

what you mean is another circuit

and some apartments have only one circuit which all the sockets run on.

also if i'm not mistaken the amount of devices plugged in is not the source of the problem, it's the wiring of the circuit itself in conjunction with the laptop's own power handling.

someone please correct me if i'm wrong about any of this

but no, don't start an electrical fire

Earthling wrote:you need a

"ground loop isolator"

that's the exact item you need so google it

if you live in the US, radioshack has one (dont let them get involved in trying to solve your problem though).

http://www.radioshack.com/product/index ... Id=2062214

send it through the out on your laptop with all the necessary cable fittings, simple as that

there are many similar parts available online, so it should be easy to get anywhere in the world. anything with the same name that looks like the photo in the above link.

good luck

where would that go in my setup?

Ground loops are fucking annoying.

I had the same issue years ago with a Sony Vaio.

Good luck in getting it sorted.

caunter wrote:

Earthling wrote:you need a

"ground loop isolator"

that's the exact item you need so google it

if you live in the US, radioshack has one (dont let them get involved in trying to solve your problem though).

http://www.radioshack.com/product/index ... Id=2062214

send it through the out on your laptop with all the necessary cable fittings, simple as that

there are many similar parts available online, so it should be easy to get anywhere in the world. anything with the same name that looks like the photo in the above link.

good luck

where would that go in my setup?

straight out of your laptop

you will need to convert the 1/8 inch to RCA

the ground loop insulator worked perfectly thanks for the help

Got this on my powerbook as well. Fuckin metal casing causing issues.

glad you got it sorted.

big bit of advice to anyone with this issue: run your soundcard output volume and your computer's master volume as loud as possible, allowing you to lower the volume of your speakers. This will help a bit, and for me it helps enough that I get by without problems.