Hissing/Crackling in headphone audio

[caxino18]

Alright, so my issue is that there's a slight hiss and occasional crack when I'm listening to whatever. The hiss is only slight because I fiddled with the EQ until it wasn't as loud. I can still hear it, but it's not as much. My question is; Is this a hardware issue, or a software issue? And if it's one of the above, how can I fix it?

Thanks

 

[RazerZ]

Tired so I'm cutting / pasting other response. Some other guy had a similar problem

It might be that it's either a bad driver, or there's some particle stuck on to the driver.

Or it could be a bad sound card. Try the headphones in a different source and see if the problem persists.

Had the same problem with a couple of headphones...

You might want to try a sine sweep and see if you can hear it there on the lower frequencies.

http/www.audiocheck.net/testtones_sinesweep20-20k.php