Theres a sort of low interference noise in logic. If i scroll in the arrange window it happens more. It's almost like i can hear my mac thinking. Sounds a bit like mobile phone interference with a low pass filter on it.
MacBook Pro retina 13" late 2013 Processor 2.8 GHz Intel Core i7 Memory 8 GB 1600 MHz DDR3 Software OS X 10.9.1 (13B3116) Logic Pro X 10.1.1