Pops and random glitches from audio output

Hi,
I've been experiencing some issues from the audio output. There is a pop sound before and after a single sound is played and stopped. When this happens, the console shows the stack shots enabled/disabled pair of messages. I've seen threads about this messages and the popping sounds, but no solutions really.
I also get a totally random sound from the speakers (tested different systems) at any given moment. Sometimes browsing the internet, playing a quicktime movie or just doing nothing. I've noticed that it gets really bad when I play chess at chess.com, which uses an interface (not sure what).
So, this is the thing, I'm a musician and I use my mac for music purposes, so you can imagine how annoying it can be to have pops and glitches on a supposedly state-of-the-art machine

"Is this a hardware error or am I stuck with this situation? "
Take your MBP to an Apple Store so that the Geniuses can run diagnostic tests. They will let you know if it's a hardware problem or if you are stuck w/it.

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