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Buzz from mouse in speaker

Hi!

I just registered here, because i am at my wits end, and hope someone has some insight. I have a buzzing sound in my speakers, which gets stronger when i move the mouse. 

My setup: 

Desktop computer - Mtrack Duo - Marantz 1530 stereo amplifier

The sound is a kind of high pitched buzzing static, which corresponds to activity on the computer, most notable mouse movement. I can also hear it at a low volume from the mobo itself, if i put my head in the computer with the speakers disconected.

It´s also transfered if i connect from the onboard motherboard audio card straight to the amp. I can however not hear it in a pair of headphones. Plugin into an active stage speaker greatly reduces the issue, to almost inaudible. 

Connecting another computer to the amp is trouble free. 

My best guess is that the source of the problem is coil whine from the motherboard. i have tried replacing the PSU to no effect. 

However i find it strange that the issue disapears when i connect to an active stage speaker. 

Does anyone have a sugestion for further troubleshooting or a solution?

Thanks in advance!

dundeyr
fuzztone's avatar
fuzztone
5,591 posts
 

Has it evaded you?  Computer sound is noisy.

Enjoy.

tonywinga's avatar
tonywinga
844 posts
 

Next time say it this way, “Buzz in speaker from mouse.”

I didn’t want to read your post at first because I thought you had a live mouse in your speaker making noise.  Ewwww.

Anyway, what they all said.  The computer is a noisy source.  Ditch the computer and hire a band- or build/buy a dedicated music server.

Hey, I just realized why speaker ports are so high off of the floor- so mice can’t get in.

czarivey
5,946 posts
 

sorry i didn't realize that to kill the buzz from mouse in the speaker, you need to set up a mouse trap.

erik_squires
16,046 posts
 

Last time I remember having an issue remotely like this it was actually related to the video cables/screen.  Try moving those away from your speakers, replacing the video cable, etc.

dundeyr OP
1 posts
 

Thank you for your replys. Getting rid of the computer is sadly not an option, as i use it for music production and recording. 

Ihave tried moving the soundcard and amplifier as far off as possible, with no change. 

It is indeed an asus motherboard. However, i´m reluctant to replace it after replaceing the PSU to no avail. What makes me question is that i actually get rid of the interference when i connect my external soundcard to the active speaker instead of the amp. Any sugestions on how to troubleshoot this before investing in a new mobo?

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