EMI and how to fix it?

[PebblesInAus]

HI guys, 
I finally bit the bullet and got me some Audio technica phones (after watching one of your reviews) I have upgraded from Logitech G35 usb ones. So far so good, apart from one little concern.
I am getting some kinda interference from somewhere.

Only when the volume is up a little I can hear it only in the left side. I have moved my sound card (Xonar DG) further from the GPU (R9-290x) and its still there. I have tried the phones on the laptop all good. I have enabled the onboard codec and tried them and all good.
It seems when I move the mouse it gets worse! even plugging the phones into the back without the extension it still carries the noise...

 

Its obviously the sound card. Is there anything else I can do to fix this?

[KarathKasun]

Swap PSU or Motherboard.  Thats about it.

[PebblesInAus]

Oh thats no good. 

It seems to me that its coming through the bus? cause the onboard doesnt make the noise?

[PebblesInAus]

Could it be the sound card itself? or just the general setup?

[PebblesInAus]

Righto, is there a product available that is a good quality headphone amp and SPDIF pass through? all external?

[JabroniBaloney]

12 hours ago, PebblesInAus said:

Righto, is there a product available that is a good quality headphone amp and SPDIF pass through? all external?

An amp/dac combo would be a good solution. 

I just got a Micca Origen G2 because of a similar issue and it's pretty damn great. No more static sounds and a noticeably better quality sound.

[PebblesInAus]

Thanks Jabroni. But can I have a SPDIF passthrough in a DAC? I use headphones for gaming, but its also hooked up to my HT setup to run blu rays, 

[JabroniBaloney]

3 hours ago, PebblesInAus said:

Thanks Jabroni. But can I have a SPDIF passthrough in a DAC? I use headphones for gaming, but its also hooked up to my HT setup to run blu rays, 

I think you can. It has an analog stereo and spdif optical out(reading the user manual)

[Donut417]

On 8/2/2018 at 9:44 PM, PebblesInAus said:

HI guys, 
I finally bit the bullet and got me some Audio technica phones (after watching one of your reviews) I have upgraded from Logitech G35 usb ones. So far so good, apart from one little concern.
I am getting some kinda interference from somewhere.

Only when the volume is up a little I can hear it only in the left side. I have moved my sound card (Xonar DG) further from the GPU (R9-290x) and its still there. I have tried the phones on the laptop all good. I have enabled the onboard codec and tried them and all good.
It seems when I move the mouse it gets worse! even plugging the phones into the back without the extension it still carries the noise...

 

Its obviously the sound card. Is there anything else I can do to fix this?

Well, Id try the front audio ports. I have a similar issue on my PC, where the on board audio produces has issue. I can hear things in my headphones when I move the mouse. Started using the front audio ports, solved my issue. Maybe an external DAC would help. 

[PebblesInAus]

Righto well this is weird I think anyway. I connected the front port header to the sound card. Using the front port everything is kick ass. There you go. Another suggestion for google to look up

 

[Tyler Moore]

Ditch the analog I/O go digital, can't see why people opt for anything over onboard that's not a DAC.

-
This was a real problem when I got into high-end production.

 

[PebblesInAus]

Its not onboard Tyler I have the Xonar from Asus.

[Tyler Moore]

Yes I'm aware, it's no DAC/Audio Interface though. It's a sound card.
There are clear differences so I guess it depends on use.

I don't know why you'd buy the card over use of onboard, that I wonder about but in regards to potentially DIYing a fix; you can try eletrical tape on t he expansion slot that'll seat the card. Preventing the metal contact may stop the back plate from transmitting further signals.

[PebblesInAus]

Righto ill give that a crack. Mind you, Ive had this sound card even before I knew what a DAC was.