I use a Focusrite Scarlett 2i4 interface, when doing basic tasks like web browsing or reading pdfs i get lots of pops and crackles, it even happens when typing this, when all i'm doing is using firefox to play from sound cloud and type this.
Frequently the sound just stops and i have to reset by opening puvacontrol and setting the device to off the re-enabling it.
I use ubuntu studio 12.10 (similar to xbuntu with low-latency kernel), with AMD Turion64x2, 2gb RAM (it's a Toshiba satellite P200D-137)
Any ideas what i can change to prioritise audio (pulseaudio has a nice value of -11)
I tried using Jack and pulseaudio sink, it makes no difference, no matter what jack setting use.