Devout Cultist

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Last night itunes asked to update to 12.1 so right before bed i updated.
Now i come home, listen to music and i start noticing that i can hear crackling and skipping in the songs. It's very noticeable in classic and slower music and it's really annoying.
It's not my speakers or my pc because i can play perfect music through youtube, windows mediaplayer and vlc.

My audio enhancer is off, and i've got it at 44.1 Mhz, 16 bits.
I don't see what could be wrong.
How do i stop itunes from breaking up the audio?