Front panel audio hissing noise

[cjelec]

Hi,

On my PC case I have (like most others) a front audio panel. When I use my headphones with this port I can hear hissing and buzzing, I would say that its interference from the mobo...

So I'm trying to find shielded AC'97/HD cable or a way to mod my current one. I have searched the web without much joy.

Has anyone found something to solve this problem, or do you know were I can find some info on this?

Thanks in advance

 

[JohnOB]

Have you tested to see if it may be something simpler, such as something interfearing with the speakers inside the headphones.

Maybe if you tried it whilst your monitor and external speakers were switched off, or other such magnetic equipment near by?

"Stupid isn't not knowing the answer, it's not asking the question

 

[wahnula]

Due to the proximity of the sound circuitry to the electrical circuitry on an embedded audio chip you can expect crosstalk and noise. That's why most serious listeners use discrete sound cards, to reduce this. If it's not in your budget, you can try notching those frequencies (Winamp has a good free EQ ) I would guess the hissing would be 2000 Hz & up, but trial & error might get you a workable solution.

Remember with EQs the secret is equal amounts of boost and cut; you should be able to look at that curve and have it average at 0. Then you use the volume controls for overall volume. If your EQ is all cut or all boost it is wrong. And NEVER push those EQ slides all the way up or down; compensate with overall volume.

Tony

 

[cjelec]

Thanks for your suggestions,

I have used the PC in multiple locations and I use the headphones for digital recording (different kit) without any problem. The noise always happens with the front panel and never with the back (except when the speakers I use sometimes use gets tangled with the power lead).

Headphones plugged into the back are good, but in the front I get the noise. This is why I think its the cable from the mobo to the panel.

Thanks again.