Shorted front audio Jack

[KrIstIaN430]

I'm a noob with circuits. But I made one by copying a circuit that I saw which requires audio. It's Led sync to Music. It was working fine at first but then the ground of the audio had a contact with a different part of the circuit( i forgot what it was). Since then when i tried using a normal headphone on my front, the Audio is really bad, i can barely hear the vocals. Is there any way to fix this?

---I'm sure its the audio jack. BTW: Its front audio Jack only.
This is the circuit that i copied: http://www.instructables.com/id/LED-strip-Synced-MUSIC/?ALLSTEPS

 

[basroil]

Sounds like you destroyed your audio codec playing around with something you're clearly not ready for. Try turning off the computer and unplugging it for a few hours, and if that doesn't help then you'll need to buy a new soundcard (or USB DAC)

Next time, buy a raspberry pi and test out stuff on that before you decide to potentially ruin your much more expensive computer