Static on front audio

[iTimo01]

Hey,

(not sure if this is the right forum)

 

I have the problem that I have static on my front panel audio. (both mic and speaker/headphone)

 

If I unplug the front usb ports there is no static.

 

 

I looked at the board where everything is on and saw that the audio ground is connected to the usb ground (thats atleast what it looks like)

 

I marked the trace I mean on the picture

Spoiler

 

 

Here is the same picture without my "drawing"

 

Spoiler

 

 

So would it fix the issue by just destroying that connection?

 

EDIT: My case is an super cheap Aerocool Strike X One

[Majestic]

To me it would be more logical that the big surface that connects to multiple pins is the ground. USB can introduce a lot of EMI/static to the groundplane, so either use the backports of your Audio or don't use USB.

[iTimo01]

14 minutes ago, Majestic said:

To me it would be more logical that the big surface that connects to multiple pins is the ground.

I took some more pictures

 

Spoiler

 

 

And here is the pinout I found:

 

[iTimo01]

35 minutes ago, Majestic said:

USB can introduce a lot of EMI/static to the groundplane

Wouldn't it be possible to "disconnect" them?

[Majestic]

24 minutes ago, iTimo01 said:

Wouldn't it be possible to "disconnect" them?

You'd have to source the groundwire from someplace else. Maybe that can work. But it's cheaper and simpler just to get a jack or USB extension cable.

[iTimo01]

4 minutes ago, Majestic said:

You'd have to source the groundwire from someplace else.

If I see this right the usb port (the one who is connected to Audio ground) is also connected to USB Ground.

 

 

I Looked at this: 

 

 

4 minutes ago, Majestic said:

But it's cheaper and simpler just to get a jack or USB extension cable.

Yeah I thought about that