Sound from speakers and headphones still bad after PRAM reset

[iPhonePhreak]

I was converting a lot of FLACs to MP3 on my MBP after I learned how a large part of my iTunes library is transcodes and ironically, the sound from my speakers is crackling. I thought this maybe could've been a problem with the speakers themselves but I plugged my headphones in and it's the same...

I reset the PRAM and I entered this script in Terminal

sudo kill -9 `ps ax|grep 'coreaudio[a-z]' | awk '{print $1}'`

But nothing has been resolved. Do I need to replace the sound card or is there a solution that doesn't require me to take my MBP in for repairs?

 

[iPhonePhreak]

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