Noisy sound from audio output in MPB

I have the same thing, I thought I must be imaging it.

 

From what i have been reading, its a common occurence in MBP's on the Santa Rosa platform. The solutions seem to be getting a pair of higher impedance headphones, or get a Digital to Analog Converter and use the Optical out that comes with your MBP.

 

I reported this in this tread:

http://forums.macrumors.com/showthread.php?t=470977

I have the same issue as well. I've tried many different things testing it. The issue appears to only be in Leopard, I'm hoping this gets resolved by Apple.

 

will apple replace your laptop over this issue or fix it at all or am i gonna be told to just deal with it tommorow when i visit the genius'.

 

I'm pretty sure this is a driver issue, not a hardware issue. Meaning, there isn't a fix for it. I tested this on 3 different machines and all of them had the same noise. I doubt you getting a new one will solve the problem for you.