Front panel audio jacks Hissing sounds

[jdelrio22]

I have a Creative PCI Xpress card and when I connect my speakers or headphones I get a nice steady silence.

When I plug in my headphones to the front audio panel which is hooked up to the sound card, I get a loud hissing sound that even with better headphones has not gotten better.

Any thoughts on how to fix this?

 

[Devilpapaya]

Check to make sure card is seated correctly.
Check to make sure cables are correctly punched down/connected.
Check to make sure no cross talk is occurring (exposed wires touching).
Make sure video card is being properly recognized and drivers are install and working (device manager).
Disconnect the card and test the on-board audio.

 

[C1]

My guess is that the rear jack is speaker out while the front jack is line out. (Read the sound card's manual.) If you plug an externally powered set of speakers into the front jacks & set the sound card level to < or = 30&#37; & adjust the level for the powered speakers suitably then it will work as you expect.

Hiss typically comes from employing excessive gain (eg, using a line level output to drive a non-self powered transducer).

 

[Soundmanred]

This is usually caused by noise getting into the signal through the wire inside your case that connects your sound card to the front connector. The wire passes by all kinds of electrical components that will induce noise (hiss).
All you can do it route the internal cable as far away from everything as possible, but most likely the noise will still be there to some extent.
I ended up just plugging a short headphone extension to the rear connector and plugging my headphones into that, as it is routed outside of case and away from possible sources of noise.
Thios problem is similar in nature to having signal and power wires together in a car audio application and inducing engine noise that is heard through your speakers.