Recently I've upgraded my phone to GB thru kies. Previously I was not hearing this noise(kind of signal distortion noise) with Froyo while listening to music thru android stack player. I suspect this happens because of low RAM size coz when I kill all the running process in the task manager, no noise occur for some time until the processes are scheduled back and start running. Does any others observe this? I was able to find this since I'm a keen listener of music.