The blasting your ear drums out white noise that Logic has always done randomly has gotten far worse in Logic 9. My head is exploding right now from being blasted while mixing with my headphones. This is a very very serious problem with Logic and I STRONGLY urge you to be cautious about "using headphones" while using Logic.
There is an enormous thread on Apples forums about this and apple themselves have even answered saying they are trying very very hard to pin point it but they haven't been able to find the cause. My Macbook Pro which is 4 years old, is due for an upgrade eventually and I quite possibly will move over to Samplitude or Cubase. Both of which will free me from the restrictions Apple likes to place on us.
I will admit though, I love Logic. It's really a shame they haven't been able to figure this out. It's been happening since Logic 5. But not this frequently. And with all the users who are complaining about it, with various different hardware specs etc, it would be tough to say it's a hardware issue. It literally could be an issue with core audio.
Do any of you other OS X DAW users get this issue (Cubase etc)? Am wondering if it is truly only Logic. I can crossgrade to cubase or samplitude for about 300 dollars. That's a huge savings compared to losing my hearing.
Any rants or thoughts are appreciated and welcomed.
Maestro2be